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2022-05-24 Planning Commission Meeting Agenda PacketAuxiliary aids for persons with disabilities are available upon request at least 120 hours in advance. If a notice of less than 120 hours is received, the City of Mendota Heights will make every attempt to provide the aids, however, this may not be possible on short notice. Please contact City Hall at 651.452.1850 with requests. CITY OF MENDOTA HEIGHTS PLANNING COMMISSION MEETING AGENDA TUESDAY, MAY 24, 2022 - 7:00 PM Mendota Heights City Hall – Council Chambers 1101 Victoria Curve Mendota Heights MN 55118 1.Call to Order / Roll Call 2.Approve the April 26, 2022 Regular Meeting Minutes 3.Public Hearings a.CASE No. 2022-09 Miss. River Corridor Critical Area (MRCCA) Permit for the Xcel Energy Sibley Propane Gas Plant Facility, located at 800 Sibley Memorial Highway (Xcel Energy - Applicant / Owners) 4.New / Unfinished Business 5. Adjourn Meeting April 26, 2022 Mendota Heights Planning Commission Meeting Page 1 of 12 CITY OF MENDOTA HEIGHTS DAKOTA COUNTY, MINNESOTA PLANNING COMMISSION MINUTES April 26, 2022 The regular meeting of the Mendota Heights Planning Commission was held on Tuesday, April 26, 2022 in the Council Chambers at City Hall, 1101 Victoria Curve at 7:00 P.M. The following Commissioners were present: Chair Litton Field, Commissioners Sally Lorberbaum, Cindy Johnson, Brian Petschel, and Andrew Katz. Those absent: Patrick Corbett and Michael Toth. Approval of Agenda The agenda was approved as submitted. Approval of March 22, 2022 Minutes Commissioner Lorberbaum noted on page two, the first sentence, it should state, “…Japanese lilac tree to the service berry tree recommended by Commissioner Johnson.” COMMISSIONER LORBERBAUM MOVED, SECONDED BY COMMISSIONER PETSCHEL TO APPROVE THE MINUTES OF MARCH 22, 2022 WITH THE NOTED CHANGE. AYES: 5 NAYS: 0 Hearings A) PLANNING CASE 2022-07 SD COMPANIES, LLC/SEAN DOYLE AND HELYNE PINCE, 945 WAGON WHEEL TRAIL – PRELIMINARY/FINAL PLAT OF LILLIE’S LAKEVIEW ADDITION Community Development Director Tim Benetti explained that the applicant is seeking approval of a new subdivision of the property located at 945 Wagon Wheel Trail. The proposed plat is intended to create two new lots for single-family residential development. The property is currently owned by Helyne Pince, and SD Companies has the subject property under contract to purchase, subject to be accepted entitlement application. Hearing notices were published and mailed to all properties within 350-ft. of the site; no comments or objections to this request were received. Community Development Director Tim Benetti provided a planning staff report and a presentation on this planning item to the Commission (which is available for viewing through the City’s PC PACKET Pg. # 1 April 26, 2022 Mendota Heights Planning Commission Meeting Page 2 of 12 website). He provided additional details on Option B submitted by the applicant. Staff recommended approval of this application based on the findings and with conditions. Chair Field read a letter submitted by the applicant explaining his absence at the meeting and asking the Commission to consider Option B. Commissioner Johnson referenced the platting procedures within City Code which requires a soil and erosion control plan as well as landscaping plan for sediment control. She asked if those documents have been provided. Community Development Director Tim Benetti replied that the soils map/report was included in the packet. He stated that each lot will have its own separate wetland permit in the future and therefore those documents would come at that time as no work will be done other than the lot split and removal of the existing home. Commissioner Johnson stated that she was appreciative of the detailed listing of the trees and asked if that has been marked to delineated removals. Community Development Director Tim Benetti replied that would occur when the homes are platted, and tree removal is known. Commissioner Johnson asked for details on drainage and flood control. Community Development Director Tim Benetti replied that would also be addressed under the wetland permits. Commissioner Lorberbaum asked and received clarification on elements within Option B. She asked if there would be a road. Community Development Director Tim Benetti replied that it would not be a paved or developed curb and gutter road but will be a platted roadway of 60 feet wide. He stated that in the future if it is decided to punch a road into Mendakota Country Club, the City would have that right. Commissioner Lorberbaum asked how the fire department would access the second lot and whether they could turn around. Community Development Director Tim Benetti replied that he has not checked with the fire department. Commissioner Lorberbaum commented that she has concern with that. She commented that the City will not be maintaining or plowing the access to the second lot. Community Development Director Tim Benetti replied that there would be a shared driveway agreement and therefore it is similar to a driveway in that the homeowners would maintain it. PC PACKET Pg. # 2 April 26, 2022 Mendota Heights Planning Commission Meeting Page 3 of 12 Chair Field stated that under the proposed arrangement would a different unrelated resident be able to park their vehicle on that shared driveway and walk over to the lake. Community Development Director Tim Benetti replied that as a public right-of-way he would believe that could be done. Chair Field noted that it is a public easement and therefore could qualify as a road. Commissioner Lorberbaum stated that this is a preliminary plat approval and not a final plat request. She asked for more information on the process. Community Development Director Tim Benetti replied that the Planning Commission recommends the preliminary plat which then goes to the City Council. He stated that the final plat goes to the City Council as long as it is consistent with the preliminary plat. He stated that sometimes both the preliminary and final are presented to the Commission as the developer has submitted them together, otherwise the Commission does not review a final plat. Commissioner Petschel asked if the northern lot would be on Rogers Avenue, or whether this would not become Rogers Avenue unless the City decided to extend and connect. Community Development Director Tim Benetti replied that he does not believe that Rogers Avenue has been officially included on mapping even though part of the road was dedicated under a previous plat. He stated that the half section of road right-of-way is public at 30 feet. He stated that once the other 30 feet is dedicated, it would become a full road right-of-way of 60 feet. Commissioner Petschel commented that until the City exercises the right, the road would not be official and would not have width or facilities to accommodate parking. He stated that the road would not exist because the City has not chosen to put it in. Community Development Director Tim Benetti replied that the City chose to keep the right-of- way section and request the remainder be dedicated and provide access through license agreement at this time. Chair Field stated that if the applicant decides to only have one home on the property at the northern lot line, which would have access of a driveway of the same length proposed. Commissioner Lorberbaum commented that the proposed length would be 556, therefore if this were made a road it would exceed the maximum length for a cul-de-sac of 500 feet. Public Works Director Ryan Ruzek explained that calculation would only apply if the cul-de-sac were put at the very end, which is not typically where the cul-de-sac is placed. He stated that the cul-de-sac only needs to go to where driveways exist, therefore it would be lesser than 500 feet. Chair Field opened the public hearing. PC PACKET Pg. # 3 April 26, 2022 Mendota Heights Planning Commission Meeting Page 4 of 12 Greg Quehl, 963 Wagon Wheel, commented that if the fire engine could not reach this proposed length, he would ask what would happen if there were a fire at his home. He stated that he has a road that provides access for a fire truck, but they would not have room to turn around, they would simply backup. He stated that a fire truck can access the homes that already exist and therefore wondered what the issue would be with a third or fourth home. Commissioner Lorberbaum commented that staff can gain an opinion from the fire department before this moves forward to the City Council. Mr. Quehl stated that he and the Jacobs put together a question-and-answer type thing as to what would be asked of the proposal. He noted that many are public works or utility related. He stated that they did not have an objection to the proposal and asked the difference between options A and B. Community Development Director Tim Benetti identified the difference between options A and B in terms of the proposed lot lines. Mr. Quehl asked if ownership of the right-of-way would be addressed. Community Development Director Tim Benetti provided clarification on current property ownership and what is being asked by the City in terms of right-of-way dedication. Mr. Quehl noted a utility easement owned by Xcel and asked if that has been addressed. It was confirmed that there would be no changes to that easement. He asked if the lots could be setback further from the roadway and spaced further apart. Chair Field commented that those home sites are just shown in example. He noted that the applicant would return in the future with home proposals and the action before the Commission tonight is only related to the lot split. Mr. Quehl asked for details on the sewer connections. Chair Field stated that the applicant has represented that there would be separate sewer service for each lot but was unsure where those would be placed. Mr. Quehl commented on the apron at Rogers Avenue and Wagon Wheel and the difficulty on turning right out when leaving Rogers Avenue. He asked if that apron could be extended. He asked when the determination would be made as to whether Rogers would be public or private. Chair Field believed it would become public upon approval of the plat. Public Works Director Ryan Ruzek replied that he would view that as a shared driveway and therefore there would be regulations against public parking. He stated that the City has and would continue to issue a license to the homeowners to have a private driveway on a public easement/right-of-way. He commented that a random person would not have the right to park on this shared driveway. PC PACKET Pg. # 4 April 26, 2022 Mendota Heights Planning Commission Meeting Page 5 of 12 Larry Jacobs, 953 Wagon Wheel Trail, reinforced the comments of the previous speaker. He stated that the greatest concern they would have is related to turning the private drive into public access. He stated that if there is increased public traffic on the private drive there would be safety concerns because of the difficulty getting onto Wagon Wheel. He stated that he would not want to encourage public parking on the private driveway. He stated that he would also have concerns when the development of the homes comes forward, such as whether the private driveway would be widened and whether the mail would be relocated. Jane Haws, 940 Wagon Wheel, expressed concerns with allowing public parking. She commented that people park on her driveway to access fishing in the area the City does not want fishing. She stated that if parking were allowed on Rogers that would increase issues with safety and traffic. Chair Field stated that he apologizes for asking that question about parking and noted that has been clarified by Public Works Director Ryan Ruzek that parking would not be allowed. Commissioner Katz suggested that the resident place private driveway signs to prevent public parking. Seeing no one else coming forward wishing to speak, Chair Field asked for a motion to close the public hearing. COMMISSIONER KATZ MOVED, SECONDED BY COMMISSIONER JOHNSON, TO CLOSE THE PUBLIC HEARING. AYES: 5 NAYS: 0 Commissioner Johnson referenced the staff recommendation and condition one which mentions the wetlands permits. She noted that there has been clearing activity in the past prior to a wetland permit being requested and therefore asked if additional language should be added prohibiting clearing prior to obtaining the permit. She asked if the applicant is aware of the prohibition of heavy clearing within the shore impact zone. Community Development Director Tim Benetti confirmed that language could be added. Commissioner Katz understood the recommendation of the City Attorney relating to the lots meeting the requirements. He stated that it was his understanding as a member of the Commission that the City was not allowing flag lots Community Development Director Tim Benetti stated that the definition of a flag lot is frontage of less than 100 feet and advised that these lots would each have the necessary frontage. He stated that the City Attorney has stated that Option A could have also been approved because the frontage would have been provided along the right-of-way, whether the road were developed or not. He stated that in order to avoid any conflicts, the developer chose Option B. PC PACKET Pg. # 5 April 26, 2022 Mendota Heights Planning Commission Meeting Page 6 of 12 Commissioner Johnson stated that while the lot would be odd shaped, access would not be gained through the pole part therefore it would not be classified as a flag lot. Chair Field noted that the access is off platted right-of-way and therefore eliminates the consideration of a flag lot. He noted that if the intent of the City is to be spacious and gracious, this would seem to be a good fit for development. Commissioner Lorberbaum asked for clarification on whether this would be considered a private drive rather than a minor street. Public Works Director Ryan Ruzek replied that this is a private driveway per the license agreement. He stated that the license also defines the rights of the City should it desire to construct a roadway. COMMISSIONER PETSCHEL MOVED, SECONDED BY COMMISSIONER JOHNSON, TO RECOMMEND APPROVAL OF THE PRELIMINARY/FINAL PLAT OF LILLIE’S LAKEVIEW ADDITION, BASED ON THE FINDINGS OF FACT AND CONDITIONS OF APPROVAL NOTED IN THE STAFF REPORT AND WITH THE FOLLOWING CONDITIONS: 1. A WETLANDS PERMIT MUST BE SUBMITTED FOR REVIEW AND OBTAINED PRIOR TO ANY PROPOSED/NEW SINGLE-FAMILY DEVELOPMENT IS ALLOWED ON EACH NEW LOT. THE CONCEPT BUILDING PADS PRESENTED UNDER THE PRELIMINARY PLAT MAP DO NOT REPRESENT OR PROVIDE AND PREAPPROVAL OF A NEW SINGLE-FAMILY BUILDING LAYOUT ON EACH LOT. FINAL LAYOUTS AND SETBACKS MUST MEET R-1 ZONE STANDARDS AND SHALL BE APPROVED UNDER SEPARATE WETLANDS PERMIT APPLICATION FOR EACH LOT. 2. THE TWO NEW PROPERTIES CREATED UNDER THIS PLAT MUST HAVE THEIR ACCESS GRANTED UNDER A NEW (OR REVISED) LICENSE AGREEMENT WITH THE CITY, AND IF NECESSARY, THE TWO ADJACENT PROPERTIES TO THE WEST; AND ALSO, A REVISED SHARED DRIVEWAY AGREEMENT BETWEEN ALL RESIDENTIAL PROPERTIES UTILIZING THIS UNDEVELOPED ROW FOR THEIR OWN DRIVEWAYS AND ACCESS. 3. PRIOR TO ANY NEW DEVELOPMENT WORK ON THE SITE, ALL EXISTING STRUCTURES ON THE SUBJECT PROPERTY WILL BE REMOVED WITH AN APPROVED DEMOLITION PERMIT ISSUED BY THE CITY’S BUILDING OFFICIAL. 4. FULL EROSION AND SEDIMENTATION MEASURES WILL BE PUT IN PLACE PRIOR TO AND DURING ANY NEW CONSTRUCTION WORK ACTIVITIES, INCLUDING THE DEMOLITION OF THE OLD/EXISTING STRUCTURES, ANY TREE REMOVALS, OR INSTALLATION WORK NEEDED FOR ANY PRIVATE UTILITIES OR SERVICES TO THE NEW LOTS. 5. A BUILDING PERMIT, INCLUDING ALL NEW GRADING AND DRAINAGE WORK, MUST BE APPROVED BY CITY STAFF PRIOR TO THE COMMENCEMENT OF ANY NEW CONSTRUCTION WORK ON ANY SINGLE- FAMILY RESIDENTIAL DWELLING ON EACH NEW LOT. PC PACKET Pg. # 6 April 26, 2022 Mendota Heights Planning Commission Meeting Page 7 of 12 6. A COMPLETE AND DETAILED GRADING PLAN, UTILITY PLAN AND LANDSCAPING PLAN THAT ADHERES TO THE CITY’S POLLINATOR FRIENDLY POLICY AND NATIVE PLANTINGS LIST MUST BE SUBMITTED WITH EACH NEW WETLANDS PERMIT FOR EACH LOT. THE SUBSEQUENT BUILDING PERMITS ON EACH LOT SHALL COMPLY WITH ANY CONDITIONS OF APPROVAL RELATED TO EACH WETLANDS PERMIT REVIEW AND APPROVAL. 7. ALL NEW CONSTRUCTION AND GRADING ACTIVITIES THROUGHOUT THIS DEVELOPMENT SITE AND ON EACH NEW BUILDABLE LOT WILL BE IN COMPLIANCE WITH APPLICABLE FEDERAL, STATE, AND LOCAL REGULATIONS AND CODES, AS WELL AS IN COMPLIANCE WITH THE CITY’S LAND DISTURBANCE GUIDANCE DOCUMENT. 8. AN ADDITIONAL PARK DEDICATION FEE OF $4,000 MUST BE PAID BEFORE THE FINAL PLAT IS RELEASED BY THE CITY FOR RECORDING WITH DAKOTA COUNTY. 9. ALL WORK ON THIS DEVELOPMENT SITE WILL ONLY BE ALLOWED BETWEEN THE HOURS OF 7 A.M. TO 8 P.M. MONDAY THROUGH FRIDAY AND 9 A.M. TO 5 P.M. ON THE WEEKENDS. 10. ALL DISTURBED AREAS IN AND AROUND THE PROJECT SITE SHALL BE RESTORED AND HAVE AN ESTABLISHED AND PERMANENT GROUND COVER IMMEDIATELY AFTER THE PROJECT IS COMPLETED. 11. BEST EFFORTS WILL BE MADE TO THE CONTRACTOR(S) TO “COME CLEAN, LEAVE CLEAN” DURING THE COURSE OF ANY CONSTRUCTION ON THE SUBJECT PROPERTY. FURTHER DISCUSSION: COMMISSIONER JOHNSON REQUESTED TO AMEND THE FIRST CONDITION TO EMPHASIZE THAT NO CLEARING SHALL BE CONDUCTED PRIOR TO APPROVAL OF THE WETLANDS PERMIT AND THAT HEAVY CLEARING IS PROHIBITED IN THE SHORE IMPACT ZONE. COMMISSIONER PETSCHEL COMMENTED THAT THE STATE STATUTES DO NOT PROHIBIT THAT ACTIVITY. HE STATED THAT THERE WOULD BE A FOLLOW UP WETLAND PERMIT AND WANTS TO BE CLEAR THAT THERE ARE NO RULINGS ON THE VEGETATION THAT MAY OR MAY OR NOT BE REMOVED IN SUBSEQUENT PERMITS. COMMISSIONER JOHNSON AGREED. COMMISSIONER PETSCHEL AGREED TO INCLUDE THE LANGUAGE. AYES: 5 NAYS: 0 Chair Field advised the City Council would consider this application at its May 3, 2022 meeting. PC PACKET Pg. # 7 April 26, 2022 Mendota Heights Planning Commission Meeting Page 8 of 12 B) PLANNING CASE 2022-08 LDK BUILDERS, 791 WENTWORTH AVENUE – WETLANDS PERMIT Community Development Director Tim Benetti explained that the applicants are seeking a Wetlands Permit to allow the construction of a new single-family dwelling, along with a new retaining wall structure located next to a small creek channel. Hearing notices were published and mailed to all properties within 350-ft. of the site; the City received one letter of objection from a neighboring property owner, no other comments or objections to this request were received. Community Development Director Tim Benetti provided a planning staff report and a presentation on this planning item to the Commission (which is available for viewing through the City’s website). Staff recommended approval of this application based on the findings and with conditions. Greg Kuperus, LDK Builders, commented that he is present to answer any questions. Commissioner Johnson referenced the grading and drainage statement which states that it is anticipated that all trees will be removed within the grading limits indicated. She asked where those limits would be and where the sod would end in relation to the trail. Mr. Kuperus replied that the sod would be complete, to the trail and beyond. He stated that the backyard would be sodded halfway to the filtration basin and the remainder would be seeded. Commissioner Johnson referenced the berm with trees and asked if that would be removed. Mr. Kuperus replied that they do not intend to remove the berm or those trees. Commissioner Johnson asked if the land on the other side of the trail is County property. Mr. Kuperus stated that they will sod to provide the front yard appearance and to make it mowable. Commissioner Johnson asked what would slow down the water that is draining from the front yard. Public Works Director Ryan Ruzek stated that as part of the overall development of the four lots, the City reviewed the overall grading plan and storm water management plan. He stated that the overall development and this lot meets the drainage requirements of the City. He commented that the front yard of this lot does not go into a treatment basin but would provide a reduction from the existing conditions. He stated that the culvert was installed by a previous landowner and therefore is not a County or City facility. Commissioner Johnson commented that the City is working towards development and implementation to increase the tree canopy and asking developers to retain mature trees and install quality trees in replacement. She stated that there are two autumn blaze maples and liked the use PC PACKET Pg. # 8 April 26, 2022 Mendota Heights Planning Commission Meeting Page 9 of 12 of the seed mix. She asked if the applicant would be willing to work with staff to increase the number of trees and high value ecosystem communities as nothing of that nature is shown on the plans. Mr. Kuperus replied that the landscaping plan is proposed and noted that there would be additional plantings around the house as this will be a high value home. He stated that he would want to know what would be required before he would agree. Commissioner Johnson asked if the applicant would be willing to work with City staff to add more trees and high value ecosystem trees and shrubs. Mr. Kuperus replied that he would work with City staff to ensure City requirements are met. Commissioner Lorberbaum asked for more information on fill that has been taken from or brought to the site. Mr. Kuperus stated that overall grading was already completed, and that dirt was moved through a separate grading permit. He stated that there would be excavation for the basement. Community Development Director Tim Benetti replied that the permit would approve the full build out of the lot for a single-family home. Chair Field opened the public hearing. Jim Carlson, property owner across the creek, asked for clarification on the lot layout as to Wachtler. Community Development Director Tim Benetti provided clarification on the orientation of the plans. Randy Pentel 815 Deer Trail Court, stated that he had questions related to drainage which appear to have already been addressed by staff. He stated that if the builder has excess dirt from the basement excavation, he could use that. Seeing no one else coming forward wishing to speak, Chair Field asked for a motion to close the public hearing. COMMISSIONER PETSCHEL MOVED, SECONDED BY COMMISSIONER KATZ, TO CLOSE THE PUBLIC HEARING. AYES: 5 NAYS: 0 COMMISSIONER LORBERBAUM MOVED, SECONDED BY COMMISSIONER KATZ, TO RECOMMEND APPROVAL OF THE REQUESTED WETLANDS PERMIT TO LDK BUILDERS AND FOR THE PROPERTY LOCATED AT 791 WENTWORTH AVENUE, PC PACKET Pg. # 9 April 26, 2022 Mendota Heights Planning Commission Meeting Page 10 of 12 WHICH WOULD ALLOW THE CONSTRUCTION OF A NEW SINGLE-FAMILY RESIDENTIAL DWELLING AND RETAINING WALL, BASED ON THE FINDINGS OF FACT AND WITH THE FOLLOWING CONDITIONS: 1. ALL DISTURBED AREAS LOCATED ADJACENT TO THE CREEK CHANNEL AND AREAS IN AND AROUND THE BOTTOM LEVEL OF THE NEW RETAINING WALL, SHALL BE SEEDED WITH MNDOT SEED MIX LIST #33-261. 2. PRIOR TO THE RELEASE OF ANY ESCROW PAYMENT OR ISSUANCE OF ANY CERTIFICATE OF OCCUPANCY (C.O.) ON THE NEW DWELLING, ALL DISTURBED AREAS MUST BE SHOWN OR DEMONSTRATED THAT THE NEW VEGETATIVE BUFFER SEED MIXTURE WAS SUCCESSFULLY PLANTED, AND PLAT GROWTH HAS BEEN ESTABLISHED, TAKING PLACE, OR IS HOLDING. 3. NO ADDITIONAL GRADING OR OTHER LAND DISTURBANCE SHALL OCCUR WITHIN 25 FEET FROM THE EDGE OF THE ADJACENT CREEK, EXCEPT FOR THE INSTALLATION OF EROSION CONTROL MEASURES (IF NEEDED) OR FOR THE PLANTINGS OF ANY NEW SEED MIXTURES OR LANDSCAPING MATERIALS, AND ONLY WITH CITY APPROVALS. 4. ALL NEW LANDSCAPING MUST COMPLY WITH THE NATIVE AND POLLINATOR FRIENDLY PLANTINGS LIST OF THE CITY. 5. ANY GRADING AND/OR CONSTRUCTION ACTIVITY RELATED TO THE DEVELOPMENT OF THIS LOT SHALL BE IN COMPLIANCE WITH APPLICABLE FEDERAL, STATE, AND LOCAL REGULATIONS AND CODES, AS WELL AS IN COMPLIANCE WITH THE CITY’S LAND DISTURBANCE GUIDANCE DOCUMENT. 6. FULL EROSION/SEDIMENTATION MEASURES SHALL BE INSTALLED PRIOR TO COMMENCEMENT OF WORK AND MAINTAINED THROUGHOUT THE DURATION OF THE CONSTRUCTION PROJECT. EROSION BARRIERS SHALL BE PLACED AND MAINTAINED ALONG THE EDGE OF THE CREEK CHANNEL AND DEVELOPMENT SITE THROUGHOUT THE DURATION OF THE PROJECT AND REMAIN IN PLACE UNTIL ALL DISTURBED AREAS HAVE BEEN RESTORED. 7. THE NEW DWELLING AND RETAINING WALL AND ANY RELATED CONSTRUCTION WORK SHALL COMPLY WITH ALL OTHER AND APPLICABLE STANDARDS AND CONDITIONS UNDER TITLE 12, CHAPTER 2 WETLANDS SYSTEMS OF CITY CODE. 8. A BUILDING PERMIT MUST BE APPROVED PRIOR TO COMMENCEMENT OF ANY CONSTRUCTION WORK ON THE NEW RESIDENTIAL DWELLING OR RETAINING WALL. CONSTRUCTION WORK SHALL OCCUR ONLY BETWEEN THE HOURS OF 7 A.M. AND 8 P.M. ON WEEKDAYS AND 9 A.M. TO 5 P.M. ON WEEKENDS. 9. BEST EFFORTS WILL BE MADE BY THE CONTRACTOR(S) TO “COME CLEAN, LEAVE CLEAN” DURING THE COURSE OF CONSTRUCTION ON THE SUBJECT PROPERTY, AND ENSURE NEW GROUND MULCH IS FREE OF INVASIVE SPECIES. PC PACKET Pg. # 10 April 26, 2022 Mendota Heights Planning Commission Meeting Page 11 of 12 FURTHER DISCUSSION: COMMISSIONER JOHNSON REQUESTED TO AMEND THE MOTION TO INCLUDE ANOTHER CONDITION STATING THAT THE APPLICANT WITH WORK WITH THE NATURAL RESOURCES COORDINATOR TO INCREASE TREE CANOPY AND INSTALL HIGH ECOSYSTEM COMMUNITIES ON THE LOT. COMMISSIONER PETSCHEL STATED THAT HE WOULD NOT SUPPORT THAT. HE STATED THAT COULD BE RECOMMENDED BUT COULD NOT BE FORCED. CHAIR FIELD AGREED THAT SHOULD NOT BE INCLUDED ON THE RECORD AND SHOULD CONTINUE TO BE A RECOMMENDATION. COMMISSIONER LORBERBAUM STATED THAT THE APPLICANT HAS STATED THAT THEY WOULD BE OPEN TO WORKING WITH STAFF TO FIND OUT MORE INFORMATION BUT WOULD NOT AGREE TO DOING SOMETHING WITHOUT KNOWING WHAT THAT MAY BE. MR. KUPERUS COMMENTED THAT HE WOULD BE PLEASED TO WORK WITH STAFF TO ENSURE THE REQUIREMENTS ARE MET BUT WOULD NOT AGREE TO THINGS ABOVE AND BEYOND. COMMUNITY DEVELOPMENT DIRECTOR TIM BENETTI STATED THAT WHEN SWEENY ADDITION PLAT 2ND WAS FILED THERE WAS A CONDITION FOR A DETAILED LANDSCAPING PLAN TO BE SUBMITTED WITH THE BUILDING PERMIT. HE STATED THAT ADDITIONAL DETAILS ARE PROVIDED AT THAT STAGE, BUT AT THIS STAGE IT IS ONLY REQUIRED THAT THE MINIMAL REQUIREMENTS BE MET. HE COMMENTED THAT HE IS CONFIDENT THAT LDK WILL BE PROVIDING ADDITIONAL PLANTINGS ON THE SITE AND THAT INFORMATION WILL BE PROVIDED AT A LATER DATE. HE STATED THAT A RECOMMENDATION COULD BE MADE THAT THE APPLICANT WILL WORK WITH THE NATURAL RESOURCES COORDINATOR ON ANY FUTURE PLANTINGS. COMMISSIONER PETSCHEL ASKED THE ORDINANCE THAT WOULD REQUIRE THE APPLICANT TO DO SO. COMMUNITY DEVELOPMENT DIRECTOR TIM BENETTI REPLIED THAT IS NOT REQUIRED UNDER ORDINANCE. COMMISSIONER PETSCHEL NOTED THAT IS WHERE HIS CONCERN WOULD BE, THAT THE GROUP WOULD BE INVENTING REQUIREMENTS. HE STATED THAT THIS IS A RECORD THAT IS POTENTIALLY SOMETHING THAT COULD BE FOUGHT IN COURT, IF APPROVED BY THE COUNCIL, AND THINGS CANNOT BE PUT IN BECAUSE THAT IS HOW SOMEONE WOULD WANT IT TO BE. COMMISSIONER JOHNSON NOTED A DETAILED LANDSCAPING PLAN IS REQUIRED. COMMISSIONER PETSCHEL COMMENTED THAT WAS PROVIDED. PC PACKET Pg. # 11 April 26, 2022 Mendota Heights Planning Commission Meeting Page 12 of 12 COMMISSIONER JOHNSON REFERENCED THE COMPREHENSIVE PLAN. COMMISSIONER PETSCHEL NOTED THAT IS NOT CODE. COMMISSIONER JOHNSON STATED HER AMENDMENT WAS FOR THE APPLICANT TO WORK WITH THE NATURAL RESOURCES COORDINATOR, NOT TO REQUIRE ANYTHING SPECIFIC BUT SOMETHING THAT WOULD BE AMENABLE TO BOTH PARTIES. CHAIR FIELD STATED THAT HE AGREES WITH COMMISSIONER PETSCHEL AND NOT COMMISSIONER JOHNSON. HE STATED THAT PUTTING A WILL OR SHALL WOULD EXCEED THE AUTHORITY OF THE CITY. IT WAS CONFIRMED THAT RECOMMEND COULD BE USED. HE STATED THAT EVERYONE APPEARS TO BE ON THE SAME PAGE, INCLUDING THE APPLICANT, BUT THE WORDS ARE NOT AGREED UPON. COMMUNITY DEVELOPMENT DIRECTOR TIM BENETTI SUGGESTED THAT AN ADDITIONAL SENTENCE COULD BE ADDED TO CONDITION FOUR; “A RECOMMENDATION FOR THE APPLICANT TO WORK WITH HE NATURAL RESOURCES COORDINATOR ON ANY FUTURE PLANTINGS PLAN.” COMMISSIONERS LORBERBAUM AND KATZ ACCEPTED THE LANGUAGE SUGGESTED BY STAFF. AYES: 5 NAYS: 0 Chair Field advised the City Council would consider this application at its May 3, 2022 meeting. New/Unfinished Business Community Development Director Tim Benetti gave a verbal review on recent actions of the City Council relating to cases previously considered by the Commission. He expressed appreciation to Public Works Director Ryan Ruzek for filling in during his absence. He stated that there is a joint workshop between the Planning Commission and City Council scheduled for May 12th. Adjournment COMMISSIONER KATZ MOVED, SECONDED BY COMMISSIONER LORBERBAUM, TO ADJOURN THE MEETING AT 8:22 P.M. AYES: 5 NAYS: 0 PC PACKET Pg. # 12 PLANNING STAFF REPORT DATE:May 24, 2022 TO:Planning Commission FROM:Tim Benetti, Community Development Director SUBJECT:Planning Case No. 2022-09 MISS. RIVER CORRIDOR CRITICAL AREA PERMIT APPLICANT:Xcel Energy PROPERTY ADDRESS:800 Sibley Memorial Highway ZONING/GUIDED:B-1A Business Park/LB-Limited Business ACTION DEADLINE:June 21, 2022 INTRODUCTION Xcel Energy (Northern States Power Company) is seeking approval of a Miss. River Corridor Critical Area (MRCCA) Permit, in order to provide a number of safety and functional improvements to the Sibley Propane Plant facility, located at 800 Sibley Memorial Highway. This item is being presented under a duly noticed public hearing process. A notice of hearing was published in the Pioneer Press; and notice letters were mailed to all owners within 350-feet of the subject property, including the cities of St. Paul and Lilydale. The city has not received any objection or comments related to this application. BACKGROUND The subject property is generally known or identified as the Sibley Propane Gas Plant facility, which is located south and east of State Trunk Highway 13, and abuts Valley Park to the south, commercial/office developments to the north, and Park Place and Summit residential neighborhoods to the east (refer to GIS image – right). The plant property contains two parcels comprising of approximately 25 total acres, which are all owned and operated by Xcel Energy (formerly Northern States Power Company). According to Xcel representatives, the plant use has existed in its current location since the mid-1950’s. The site is fairly open with security style fencing around its perimeter, and contains a number of support structures and buildings that house office/work spaces, maintenance areas, valve/mixing rooms, and includes 37 horizontal laying propane tanks on the back side of the plant site (referred to as the “Tank Farm”) PC PACKET Pg. # 13 Planning Case #2022-09 (Xcel – MRCCA Permit) Page 2 The plant is used primarily to feed propane into the local natural gas line systems during periodic “spikes” or peak demand events, typically experienced in winter heating season months and only as needed. On August 25, 2021,Xcel submitted an Administrative Critical Area Permit application to the City Council, in order to complete some immediate and mandatory infrastructure improvements to this plant. These upgrades included replacing some outdated and worn out valves, pipes and equipment with new modern materials, equipment, pipes, valves and miscellaneous safety measures. Due to the importance of providing continued natural gas service to the community and region, and ensuring that gas is available to local customers when the cold/winter season comes, these equipment upgrades and the work proposed by Xcel were deemed essential to the general public, and the council elected to expedite this work under an Administrative Critical Area Permit approval. Xcel is now completing other elements and improvements needed for this tank facility, and are requesting official consideration of this work under a new MRCCA Permit, and which work includes the following: 1. replace the existing propane loading facilities for increased operational efficiency and safety; 2. improve the existing stormwater routing, storage, and discharge systems on site; 3. install a new fire suppression system; and 4. repair and armor the eroding stormwater channel located to the west of the tank farm. According to the Xcel’s narrative, the proposed work will bring the site into compliance with National Fire Prevention Association (NFPA) codes and design standards. ANALYSIS – MRCCA PERMIT A majority of the plant site is situated in the MRCCA Overlay boundary, and is located within the SR- Separated by River District. Along the westerly boundary of the site is where the mapped bluffs are located, identified as the cross- hatched areas – and the related 20-foot buffer or bluff impact zone (BIZ), as noted by orange-hatched areas (see MRCCA map image- above). Properties located in the SR District are characterized or governed by the following principles: Description. The SR district is characterized by its physical and visual distance from the Mississippi River. The district includes land separated from the river by distance, topography, development, or a transportation corridor. The land in this district is not readily visible from the Mississippi River. PC PACKET Pg. # 14 Planning Case #2022-09 (Xcel – MRCCA Permit) Page 3 Management Purpose. The SR district provides flexibility in managing development without negatively affecting the key resources and features of the river corridor. Minimizing negative impacts to primary conservation areas and minimizing erosion and the flow of untreated storm water into the river are priorities in the district. In addition, providing public access to and public views of the river, and restoring natural vegetation in riparian areas and tree canopy are also priorities in the district. Per Section 12-3-8. E., Public utilities must comply with the following standards: 1. High-voltage transmission lines, wind energy conversion systems greater than five (5) megawatts, and pipelines are regulated according to Minnesota Statutes, chapter 216E, 216F, and 216G respectively; and 2. If overhead placement is necessary, utility facility crossings must minimize the visibility of the facility from the river and follow other existing right of ways as much as practicable. 3. The appearance of structures must be as compatible as practicable with the surrounding area in a natural state with regard to height and width, materials used, and color. 4. Wireless communication facilities must comply with Section 12-3-5.B.6. There are no new high-voltage line, wind energy systems, pipelines or wireless communication systems proposed under this project. Pursuant to new City Code Section 12-3-12, no building permit, zoning approval, or subdivision approval shall be issued for any action or development located in an area covered by this chapter until a site plan has been prepared and approved in accordance with the provisions of this chapter. The new ordinance also provides for new rules and standards for new developments, which may include Land Alteration activities and Vegetation Management (removals and replanting). There are no major building improvements proposed under this project, except for a small pump house for the new fire suppression system. Most of the new or major structural improvement include a new truck unloading facility and system located just north of the tank farm and support buildings, which will be rebuilt with above grade piping to easily monitor the condition of the propane transfer system. A significant portion of the project is dedicated to addressing drainage issues on the site. Work will consist of re-grading parts of the site, and installing a detention pond and spill containment basin (with an impervious liner), that will treat immediate stormwater runoff in the tank farm areas, and act as an emergency containment basin in the event of any tank leak (see plan image below – lower right corner). PC PACKET Pg. # 15 Planning Case #2022-09 (Xcel – MRCCA Permit) Page 4 The plan includes connected network of concrete stormwater trenches to be installed between the tanks, which will be equipped with traffic rated grates on top of the trenches to accommodate workers and vehicle traffic. These trenches are tied together and drain water towards the storm/emergency basin in the corner. As evident in aerial images and site pics, this area outside the tank farm is experiencing considerable erosion and wash-out from surface drainage leaving the tank farm site at this location. Xcel intends to correct this issue by reinforcing and armoring this open channel with new rip-rap rock material, and restore any disturbed areas in and around this channel area as needed (see images – below. Xcel’s plans also includes a narrow, open diversion ditch to be installed along the east edge of the tank farm, which will gradually drain any water runoff into the channeled opening on the east end of the new pond. Should the pondreach a certain level, there is a 30-inch outlet pipe that will carry water away through the tank farm and discharge out to the improved and armored rip-rap drainage channel located outside the west side of the tank farm (see pipe and rip-rap channel image – below): Xcel is planning to install a considerable fire suppression system for the tank farm, which will consist of a new water supply system fed by a new 12-inch main extension coming from the water main line underneath Farmdale Road to the east. This line will cross over the vacant wooded parcel located between Farmdale Road and the plant site, also owned by Xcel. Plans call for the line to be placed within the open corridor space that exists between the roadway and facility (refer to street image – right). LOOKING WESTERLY FROM FARMDALE RD. - TOWARDS GAS PLANT Source: Google Maps/Streets PC PACKET Pg. # 16 Planning Case #2022-09 (Xcel – MRCCA Permit) Page 5 Xcel intends to directional bore this 12” pipe line through this corridor; however, if engineering constraints make this impossible or too difficult, Xcel will then need to open-trench the line in, and replant and restore the area as needed. This existing open corridor should help save or prevent the loss of additional trees in this wooded parcel as part of this water main extension and construction work. Once the 12-inch main is extended into the plant site, it will then connect over to a small fire-pump house structure located north of the tank farm. From there, Xcel plans to extend and loop a new 16” water line around the perimeter of the tank farm and support structures (north of the tanks), then the system will be looped northward or back out to the water system in Sibley Highway to the north. The underground piping will provide for fire hydrants or valves to be strategically spaced around the tank farm; and will connect to a new above-ground sprinkler system, which will remain dry. If there is an accidental spill event, the underground water system will fill the above ground piping, which will then flood the tank farm. The entire system above and below ground will be submitted to the State Fire Marshall for a Fire Suppression Permit, and the Mendota Heights Fire Department will be provided copies of these plans as well. All of this water main system work must be approved or permitted by St. Paul Regional Water Resources. Land Alteration Standards and Stormwater Management MRCCA Ordinance Section 12-3-10 provides for specific allowances and standards related to Land Alteration and Stormwater Management. The purpose of this section is to establish standards that protect water quality from pollutant loadings of sediment, nutrients, bacteria, and other contaminants, and maintain the stability of bluffs, shorelines, and other areas prone to erosion. Land Alteration: Within the bluff impact zone (BIZ), land alteration is prohibited, except for the following, which are allowed only by permit. a) Erosion control consistent with a plan approved by the City and consistent with Section 12-3-10.F. b) The minimum necessary for development that is allowed as an exception under Section 12-3-15; and c) Repair and maintenance of existing buildings and facilities. Construction or replacement of rock riprap and other erosion control structures within the bluff impact zone is allowed with a permit consistent with the provisions of Section 12-3-10.F., provided that: a. If the project includes work at or below the OHWL, the commissioner must approve or permit the project. b. The structures are used only to correct an established erosion problem as determined by the City. PC PACKET Pg. # 17 Planning Case #2022-09 (Xcel – MRCCA Permit) Page 6 c. The size and extent of the structures are the minimum necessary to correct the erosion problem and are not larger than the following, unless a professional engineer determines that a larger structure is needed to correct the erosion problem: 1) Retaining walls must not exceed five feet (5’) in height and must be placed a minimum horizontal distance of ten feet (10’) apart; and 2) Riprap must not exceed the height of the regulatory flood protection elevation. The City has been aware of the worsening erosion pattern and gully developing on the west side of the tank farm, and asked Xcel (in 2021) to plan for or provide some form of mitigation and correction in this area. The new heavy, angular rock rip-rap to be placed along this drainage channel, will provide adequate and suitable erosion protection and management for this slope. Additional grading around the tank farm will be minimal, and provide for adequate containment of any stormwater runoff or help contain any spills. Stormwater Management: In the bluff impact zone, stormwater management facilities are prohibited, except by permit if: a. There are no alternatives for storm water treatment outside the bluff impact zone on the subject site; b. The site generating runoff is designed so that the amount of runoff reaching the bluff impact zone is reduced to the greatest extent practicable; c. The construction and operation of the facility does not affect slope stability on the subject property or adjacent properties; and d. Mitigation based on the best available engineering and geological practices is required and applied to eliminate or minimize the risk of slope failure. In all other areas, storm water runoff must be directed away from the bluff impact zones or unstable areas. As noted previously, Xcel intends to construct a new stormwater detention basin to provide treatment of runoff coming off the tank farm area. This basin will be placed in the southeast corner of the tank farm, an area relatively flat and level. No part of this basin will be adjacent to or impacts any BIZ in and around this utility parcel. The basin is meant to pre-treat stormwater runoff, but also help reduce runoff from reaching the bluff and BIZ on the west; which will help with slope stability that is called for or needed in this westerly sloped areas. Tree Removal & Replacement Xcel has provided a very detailed tree inventory and identification plan, which includes a tree/vegetation replacement plan as well. As was noted previously, the open corridor area off Farmdale Road that cuts across the Xcel owned parcel and over to the tank farm, is intended to be an area of minimal disturbance by means of directional boring the new water pipe. However, if directional boring is not possible, and full trench construction needed, Xcel has identified a number of trees that may need to be removed (approx. 28) and the replacement plan calling for 10 Eastern Redbuds; 5 Allegheny Serviceberry; and 5 American Hornbeam trees in this area (see partial tree plan image – below left). PC PACKET Pg. # 18 Planning Case #2022-09 (Xcel – MRCCA Permit) Page 7 The other area of removal is along the west side of the service/entrance drive, where the new looped water line is being planned for connection back out on to Sibley Highway (see partial plan image –above –right). A number of these plantings (approx. 50 +/-) are scheduled for removal, and most of these appear to be green ash, buckthorn, box elders and small number of white oaks. The replacements for this area include 13 Eastern Redbuds; 10 Downy Hawthorne; 5 swamp oaks; 5 American Hornbeam; 5 Allegheny Serviceberry; and 5 American Yellowwood. The plan also calls for all disturbed areas to be restored with MnDOT Low Maintenance Turf Mix #25-131. Conditions of Land Alteration Permit Approval No permit for land alteration shall be approved unless: 1. Temporary and permanent erosion and sediment control measures to retain sediment onsite are consistent with the best management practices in the Minnesota Stormwater Manual, as it may be amended or revised from time to time; 2. Natural site topography, and soil and vegetation conditions are used to control runoff and reduce erosion and sedimentation; 3. Construction activity is phased when possible; 4. All erosion and sediment controls are installed before starting any land disturbance activity; 5. Erosion and sediment controls are maintained to ensure effective operation; 6. The proposed work is consistent with the vegetation standards in Section 12-3-9; and 7. Best management practices are used for protecting and enhancing ecological and water resources as identified in Best Practices for Meeting DNR General Public Waters Work Permit GP 2004-0001, as it may be amended or revised from time to time. As part of any Land Disturbance Permit issued by city for any new construction project, the Applicants will be required to submit for review a Storm Water Pollution Prevention (SWPP) plan, which will ensure all erosion protection measures are installed and in place prior to any construction work begins and maintained throughout the duration of the project. The Applicants will likely need a National Pollutant Discharge Elimination System (NPDES) permit from Minn. Pollution Control Agency as well. INTERAGENCY REVIEW The city is required to give Minnesota Dept. of Natural Resources and National Park Service at least 20- day notice of any new MRCCA Permit application request. These notices were emailed (04/29/2022) directly to the appropriate staff; and a response from DNR was received indicating no comment or issues with the proposed improvement work and project by Xcel; and received no response or comment from NPS. The city also mailed notices related to this MRCCA Permit request and project to the cities of Lilydale and Saint Paul for review/comments, and received no responses or comments from either community. ALTERNATIVES 1. Approve the MRCCA Permit request to Xcel Energy and for 800 Sibley Memorial Highway, which would allow the replacement of an existing propane loading system; new stormwater routing, storage, and discharge systems on site (including new stormwater detention/emergency spill containment basin); install a new fire suppression system; and repair and armor the stormwater channel located along the west side of the tank farm; all based on the findings-of-fact that the proposed project is compliant with the policies and standards of the MRCCA Ordinance and City Code, and subject to certain conditions; or 2. Deny the MRCCA Permit request to Xcel Energy and for 800 Sibley Memorial Highway, based on the recommendation the application and project does not meet certain policies and standards of the PC PACKET Pg. # 19 Planning Case #2022-09 (Xcel – MRCCA Permit) Page 8 MRCCA Ordinance and City Code, based on revised findings-of-facts determined by the Planning Commission; or 3. Table the request; direct staff to work with the Applicants and allow more time to revise or refine the plans submitted for review, and/or provide additional information for the Planning Commission to further consider, and extend the application review period an additional 60 days, in compliance with MN STAT. 15.99. STAFF RECOMMENDATION Staff recommends approval of the proposed MRCCA Permit request from Xcel Energy and for the property located at 800 Sibley Memorial Highway (Alternative No. 1), with the following conditions: 1. The new improvements and work described, illustrated and detailed on the “Sibley Propane Plant” plans, dated 05/18/2022, and any other plans related to this project, shall be the only work or improvements allowed and approved under this new MRCCA Permit. 2. All new water main system work and connection must be approved or permitted by St. Paul Regional Water Resources. 3. The entire water/fire suppression system, both above and below ground must be submitted to the State Fire Marshall for a Fire Suppression Permit, and copies provided to the Mendota Heights Fire Department for review and record keeping. 4. Full erosion and sedimentation measures will be put in place prior to and during grading and construction work activities. 5. All grading and construction activity will be in compliance with applicable federal, state, and local regulations and codes, as well as in compliance with the City’s Land Disturbance Guidance Document. The Applicants must submit and receive a SWPP Permit and NPDES Permit (if necessary) prior to start of any new construction work. 6. The appearance of the new pump house structure must be as compatible as practicable with other [existing] support structures on the plant site, including height, width, materials used, and color. 7. All new trees and vegetation, including ground cover for restoring disturbed areas on the subject site, shall conform to the Tree Removal and Replacement Plans and schedule (dated 05/18/2022) as presented, reviewed and approved under this MRCCA Permit planning application. 8. All disturbed areas in and around the project site, especially areas in the adjacent bluff and bluff impact zone, shall be restored and have an established and permanent ground cover immediately after all improvements have been installed or completed. 9. All work on site will only be performed between the hours of 7:00 AM and 8:00 PM Monday through Friday; 9:00 AM to 5:00 PM weekends. PC PACKET Pg. # 20 Planning Case #2022-09 (Xcel – MRCCA Permit) Page 9 FINDINGS-OF-FACT FOR APPROVAL Miss. River Corridor Critical Area Permit for the Xcel Energy Sibley Gas Plant Facility 800 Sibley Memorial Highway The following Findings-of-Fact are made in support of approval of the proposed MRCCA Permit request: 1. The proposed facility loading system improvements, drainage improvements, and fire safety improvements planned for by Xcel Energy on the subject property, meets the general purpose and intent of the Mississippi River Corridor Critical Area (MRCCA) District ordinances and standards. 2. The proposed work to construct these new drainage and safety improvements on the subject site are deemed minimally invasive; necessary to correct erosion issues and help correct furtherdamage or impacts to the adjacent natural environment; provide better water quality with any stormwater runoff; provides for increased measures to ensuring the health and safety of the general public, and are all reasonable and within the spirit and intent established under the MRCCA Overlay District regulations. 3. The proposed work will not be detrimental to the health, safety or general welfare of the community; should not cause any serious traffic congestion nor hazards; will not seriously depreciate surrounding property value; and also is in harmony with the general purpose and intent of the City Code and the Comprehensive Plan. 4. The overall construction of these site improvements, including new trees and landscaping, will comply with all standards and regulations of the MRCCA Ordinance and any related Zoning Ordinance, State Building and Fire Codes, and other applicable ordinances; and represents a considerable investment by the Applicants (Xcel Energy) to an important utility service feature in the community. $WWDFKPHQWV ([KLELW$±3URMHFW1DUUDWLYH ([KLELW%±/RFDWLRQ0DS±6LEOH\0HPRULDO+Z\ ([KLELW&±05&&$0DS ([KLELW'±&LW\%DVH0DSZ8WLOLWLHV6KRZQ ([KLELW(±&LYLO7DQN,PSURYHPHQWV±7HFKQLFDO0HPRUDQGXP ([KLELW)±6LEOH\3URSDQH3ODQW6LWH3ODQ&LYLO*UDGLQJ'UDLQDJH3ODQV ([KLELW*±:DWHU0DLQ )LUH6XSSUHVVLRQ6\VWHP3ODQV'HWDLOV ([KLELW+±6:333ODQV'HWDLOV ([KLELW,±7UHH5HPRYDO 3ODQWLQJ3ODQ PC PACKET Pg. # 21 PC PACKET Pg. # 22 414 Nicollet Mall, 414-06 Minneapolis, MN 55401 1-800-895-499 xcelenergy.com April 25, 2022 Tim Benetti Community Development Director City of Mendota Heights 1101 Victoria Circle, Mendota Heights, MN 55118 RE: Sibley Plant Safety Improvements Critical Area Permit & Mississippi River Corridor Critical Area Permit. Dear Mr. Bennetti, Please find this letter of intent and application materials for the Critical Area and MRCCA Permits for the NSP (Xcel Energy) Sibley Gas Plant located at 800 Sibley Memorial Hwy with a Parcel ID numbers of 270140075011, 270230002013, 270230002012, ERH 8LITPERXWXSVIWTVSTERI[LMGLGERFIMRWIVXIHMRXSXLIREXYVEPKEWW]WXIQHYVMRK TIVMSHWSJTIEOHIQERHMRXLI[MRXIV8LITPERXLEWFIIRMRWIVZMGIWMRGIXLIƅWTVMSV XSXLIMRGSVTSVEXMSRSJXLI'MX]SJ1IRHSXE,IMKLXW274MWMRZIWXMRKXSIRLERGIWEJIX] YTKVEHIWERHMQTVSZITPERXSTIVEXMSRW-QTVSZIQIRXWMRGPYHI x Improve the existing stormwater routing, storage, and discharge systems on site while implementing precautions to decrease the risks associated with any liquid propane storage tank failure. x Replace the existing propane loading facilities for increased operational efficiency and safety. x Install a new fire suppression system. x Repair and armor the eroding channel located to the west of the tank farm. The proposed work will bring the site into compliance with National Fire Prevention Association (NFPA) codes and design standards. The majority of the work will take place within the fenced compound of the Sibley Plant which has been maintained as an asphalt and gravel surface. Work will consist of regrading the site and installing a detention pond that will treat stormwater and act as a containment basin if there is a tank leak. A new fire suppression system with new piping will be installed along with new water main connections to Sibley Memorial Highway and Farmdale Road. The truck unlRading facility will be rebuilt with above grade piping to easily monitor the condition of the propane transfer system. The property is in the southeast quadrant of and adjacent to I-35E and US Hwy 13. The site is irregularly shaped and additionally abuts Lilydale Road and Farmdale Road. The property is in the Critical Area Overlay Zone and includes steep slopes to the south and west and forested land surrounding the facility. NSP purchased additional buffer land to the east to help screen the facility from adjacent development to the east. City parkland to the south and east provide additional screening and buffering. The site cannot be seen from the river, nor can the river be seen from the site. Exhibit A PC PACKET Pg. # 23 414 Nicollet Mall, 414-06 Minneapolis, MN 55401 1-800-895-499 xcelenergy.com Landscaping: There are no plans to change screening at the facility. Our intent is to keep the facility our of site and out of mind from the public. Construction Timing: Construction Timing: Our intent is to start construction immediately after receiving approval of our application and permits. Our goal is to have the plant operational prior to the onset of the 2022 -2023 winter heating season. Permit Critical Area Permit Mississippi River Corridor Critical Area Permit x New Construction/ Structure Permit: All work will be within the fenced compound which consists of gravel and asphalt surfaces. The new structures will consist of piping and associated racks and foundations. The pipe at the loading facility will be less than 10’ in height except for one overhead pipe bridge whose length will be approximately 40’ long, 15’ high and located in the central part of the facility. Piping in other locations may be elevated to allow for emergency vehicle access through the facility. Xcel Energy will also be installing a new water line that will be used for fire suppression system. The line is a looped system with connections at Sibley Memorial Highway and Farmdale Road. The water line will be privately owned and operated. x Land Alteration Permit: With the exception of repairing the eroded channel located west of the tank farm, all grading activities will be within the fenced compound. Grading activities will direct runoff to a new storm water detention facility where it will release water from the site at a reduced rate. Considerations in the detention facility design included eliminating the disturbance of steep slopes and vegetation. The grading activities will also bring the Sibley Plant into compliance with the most current NFPA standards by directing any spills or leaks away from the propane tanks into the detention facility, which will have gates installed to prevent the spill from leaving the fenced compound. Thank you for your consideration of our request to bring the Sibley Plant into compliance with the latest NFPA safety standards. The proposed improvements will minimally impact the natural environment and enhance the reliability and safety of the natural gas system in Mendota Heights and surrounding communities. Regards, Brian Sullivan Siting and Land Rights P: 612.330.5925 I C:612.366.0234 I F: 612.329.3096 Email: brian.e.sullivan@xcelenergy.com PC PACKET Pg. # 24 414 Nicollet Mall, 414-06 Minneapolis, MN 55401 1-800-895-499 xcelenergy.com PC PACKET Pg. # 25 414 Nicollet Mall, 414-06 Minneapolis, MN 55401 1-800-895-499 xcelenergy.com PC PACKET Pg. # 26 414 Nicollet Mall, 414-06 Minneapolis, MN 55401 1-800-895-499 xcelenergy.com PC PACKET Pg. # 27 414 Nicollet Mall, 414-06 Minneapolis, MN 55401 1-800-895-499 xcelenergy.com PC PACKET Pg. # 28 XXcceel -GGaass PPlaanntt -880000 SSiibbleeyy MMeemm..HHwwyy.. Disclaimer:Map and parcel data are believed to be accurate,but accuracy is not guaranteed. This is not a legal document and should not be substituted for a title search,appraisal,survey,yy or for zoning verification. Map Scale 11 iinncchh ==330000 ffeeeett 4/26/2022 Exhibit B PC PACKET Pg. # 29 901 949 941 910 1600 815-871 869 821 819 1600 870 949 867 826 822 1392 868 815 901 1600 1381 818 1395 1600 1600 1383 1385 1387 797-813 815-871 1600 797-813 830 I- 3 5E SIBLEY MEMORIAL HWYLI L Y D A L E R D FARMDALE RDSIB L E Y M E M O R I A L R A M P BLUFF CIR I-3 5 E R A M P I- 3 5E This imagery is copyrighted and licensed by Nearmap US Inc, which retains ownership of the imagery. It is being provided by Dakot a County under the terms of that license. Under that license, Dakota County is allowed to provide access to the “Offline Copy Add-On for Government”, on which this image services is based, at 6-inch resolution, six months after the capture date, provided the user acknowledges that the imagery will be used in their normal course of business and must not be resold or 800 SIBLEY MEMORIAL HWY. NSP / Xcel Energy Gas Plant MRCCA MAP City of Mendota Heights0250 SCALE IN FEET Legend Municipal Boundary MRCCA Boundary Bluff_Elem 18% and 75 Degree Bluffs 18% over 25 ft Bluffs 20 ft bluff buffer 75 Degree Bluffs Date: 4/26/2022 Exhibit C PC PACKET Pg. # 30 ? ? ???? ? ? ?((((((G!. G!.G!. G!. G!. G!. G!.666666666666666666666666666666666666666666666666 ! " ! ! !! ! * ! ! "" " "" * * !! ! "" "" "" * * !* ** ! * ** *! ! *** ³6666 66666666666666666666666!!2 !!2 !!2 !!2 !!2 !!2 !!2 !!2 !!2 !!2 !!2 !!2 !!2 !!2 !!2!!2 !!2!!2 !!2!!2 !!2!!2 !!2 !!2 !!2 !!2!!2 !!2 !!2 !!2 !. !. 800 910 901 894 1368 1344 1366 1360 811 1392 813 1352 1395 1362 1396 1381 1385 1387 1383 1350 1342 809 815-71 1370 901 1357 1359 1407 1347 1373 815-71 815 479386 51735440936310029625023021 2 20 6 203 19819168187175 171 66 167 166 162 159 156154150149 139 9713594131 91 90123 8 8 118 11687120 86 84 11081 80 10778106105 76 10470 279 6785 65184 6461 60145 56 54 515 0 10848 4544 35 36 10233163302 9 27 24 20147 50 10010094501 3 9 100947 1103632010481100 81 811 5 0 150 9430 166154671549715917111812033150 150 150 10010011860150 150 120 150 97 68163 FARMDALE RDCHERRY HILL RDASPEN W AYThis imagery is copyrighted and licensed by Nearmap US Inc, which retains ownership of the imagery. It is being provided by Dakota County under the terms of that license. Under that license, Dakota County is allowed to provide access to the “Offline Copy Add-On for Government”, on which this image services is based, at 6-inch resolution, six months after the capture date, provided the user acknowledges that the imagery will be used in their normal course of business and must not be resold or distributed for the City Base Map Date: 4/26/2022 City of Mendota Heights0200 SCALE IN FEET GIS Map Disclaimer: This data is for informational purposes only and should not be substituted for a true title search, property appraisal, plat, survey, or for zoning verification. The City of Mendota Heights assumes no legal responsibility for the information contained in this data. The City of Mendota Heights, or any other entity from which data was obtained, assumes no liability for any errors or omissions herein. If discrepancies are found, please contact the City of Mendota Heights. Contact "Gopher State One Call" at 651-454-0002 for utility locations, 48 hours prior to any excavation. Exhibit D PC PACKET Pg. # 31 PC PACKET Pg. # 32 Exhibit E PC PACKET Pg. # 33 PC PACKET Pg. # 34 PC PACKET Pg. # 35 PC PACKET Pg. # 36 PC PACKET Pg. # 37 PC PACKET Pg. # 38 PC PACKET Pg. # 39 PC PACKET Pg. # 40 PC PACKET Pg. # 41 PC PACKET Pg. # 42 PC PACKET Pg. # 43 PC PACKET Pg. # 44 PC PACKET Pg. # 45 PC PACKET Pg. # 46 PC PACKET Pg. # 47 PC PACKET Pg. # 48 PC PACKET Pg. # 49 PC PACKET Pg. # 50 PC PACKET Pg. # 51 PC PACKET Pg. # 52 PC PACKET Pg. # 53 PC PACKET Pg. # 54 SIBLEY PROPANE PLANTPO# 4501038237ISSUED FOR PERMITDRAWING NUMBER SERIES - INDEXNUMBER SERIES DISCIPLINE0000COVER SHEETS1000 PFD/P&ID3000 PRESSURE TESTING & TIE-IN4000 CIVIL & STRUCTURAL5000VENDOR6000PIPING7000ELECTRICAL8000 INSTRUMENTATION & CONTROLSWORK ORDER - INDEXWORK ORDERDESCRIPTION107528961BOILER UPGRADES107528959TRUCK UNLOADING107528963FIRE DETECTION107528964FIRE SUPPRESSION10752965STAIRS & CATWALKSSERVICE CENTER:CAD FILE NAME:BYDRAWINGREVISIONSNO.DESCRIPTIONDATEDESIGNED BY:APPROVED BY:CHECKED BY:DRAWN BY:TYPE:LOCATION:DIVISION:CITY/COUNTY :IN SERVICE DATE:HISTORY DATEFLOC:®SIBLEY PROPANE PLANTCOVER SHEET0000AD2_0000.dwgNORTHMENDOTA HEIGHTS/ DAKOTAFACILITYNORTHERN STATES POWER COMPANYATB07/16/2021MM07/19/2021JM07/19/2021MHM07/19/2021A ISSUED FOR PERMITCEPC 04/22/22TBDPROJECT CONTACTSNAMEROLEPHONE#EMAILJOE BANNERMANXCEL PROJECT MANAGER563-340-9711JOSEPH.C.BANNERMAN@XCELENERGY.COMADAM SCHEIBEL CAMPOS PROJECT MANAGER 651.815.3016ADAM.SCHEIBEL@CAMPOSEPC.COMANNA SUREL CAMPOS PROJECT ENGINEER 715.651.1257ANNA.SUREL@CAMPOSEPC.COMPROJECT LOCATION MAP1401 Blake Street, Denver, CO 80202(303) 623-3345www.gopherstateonecall.orgFACILITY LOCATIONVICINITY MAPPC PACKET Pg. # 55 12"8"16" 12"6"12"16" 16" 12"16"16"WW W W W W W WWWW WWWWW W WWWWWWWWWW W W W W W WWWW WWWWW W WWWWWWWWW W W W W W WWWW WWWWW W WWWWWWWWWWWWWWWWWWWWWWWWW66WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW66WWWWWWWWW"""WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW1WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW WW6WWWW66WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW66666WWWWWWWWW666WWWWWWWW WWWWWWWWWWWWWWWWWWWWWW666WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW6WWWW WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW666WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW16"WWWW"""WWWW6WWWWWWWW66WWWWWWW"6""666611111111166611611 WWWWWWWWWWWWWWWWWWWWWWWWWW1WWWWW116WWW6666611WWWWWWWWWWWWW11WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW xxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxx x x x x x x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOHOH OH OH OHOH OHOHOHOHGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG x xxxxG GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG GGGGGGGGGGGGGGGGGGGGGGGGGGG GGGGGGGGGGGGGGGGGGG GGGGGGGGGGGGGGGGGG STSTSTSTSTST ST ST STSTSTSTSTSSSSSSSSSSSS SS SSS S SSSSSSS S SSS SSS SSSSSSSSSSSSSSSSSSST ST ST ST STSTSTSSSSSSWWWWWWWWWWWWWWWWWxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxHHHHHHHHHHHHHHHHHHHHHHHOOOOOHHOOOOOOOOOOOOOOOOOOOxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxSIBLEY PROPANE PLANTOVERALL SITE PLAN0100D2_0100_Sibley Phase II_IFP.dwgNORTH MENDOTA HEIGHTS, DAKOTAFACILITYUNIT 13, 14NORTHERN STATES POWER COMPANY MR03/29/22 IFC03/29/22 JG03/29/22 MHM03/29/22A ISSUED FOR REVIEWMR 03/29/22B ISSUED FOR PERMITIFC04/21/22C RE-ISSUED FOR PERMITIFC 04/29/22XPC PACKET Pg. # 56 ** ALL NOTES ARE GUIDELINES. REFER TOPIPELINE COMPLIANCE & STANDARDS (PC&S)MANUAL FOR MOST CURRENTREQUIREMENTS.GENERAL NOTES:1. DURING CONSTRUCTION ACTIVITIES,CONTRACTOR IS RESPONSIBLE FORSTAYING WITHIN ALL APPLICABLE PIPELINEEASEMENTS AND/OR PUBLIC RIGHT-OF-WAY(ROW). CONTRACTOR SHALL BERESPONSIBLE FOR ENSURINGLANDOWNERS HAVE BEEN NOTIFIED BYCONTRACTOR OR XCEL ROW. CONTRACTORSHALL COORDINATE ACTIVITIES WITHLANDOWNERS WHEN WORKING WITHIN THEPIPELINE EASEMENTS AND THE PUBLICROW. CONTRACTOR IS RESPONSIBLE FORSCHEDULING AND COMPLETING WORKWITHIN THE TIME FRAME THAT TEMPORARYEASEMENTS ARE IN PLACE.2. ANY MODIFICATIONS NEEDED DUE TOCONFLICTS, OMISSIONS, OR CHANGEDCONDITIONS EITHER ON-SITE OR OFF-SITE,WHICH ARISE IN THE FIELD, WILL BEENTIRELY THE CONTRACTOR'SRESPONSIBILITY TO NOTIFY THE COMPANYREPRESENTATIVE IMMEDIATELY. REQUESTCLARIFICATION PRIOR TO COMMENCEMENTOF SAID WORK.3. ALL MATERIALS AND WORKMANSHIP SHALLBE SUBJECT TO INSPECTION BY THEAPPROPRIATE GOVERNING AGENCY. THEAGENCY RESERVES THE RIGHT TO ACCEPTOR REJECT ANY MATERIALS ANDWORKMANSHIP THAT DO NOT CONFORM TOTHE AGENCY STANDARDS ANDSPECIFICATIONS.4. THE CONTRACTOR SHALL NOTIFY THEAPPROPRIATE GOVERNING AGENCYINSPECTIONS DIVISION WITHIN REQUIREDTIME LINE FOR THAT PERMIT PRIOR TO THEBEGINNING OF CONSTRUCTION.5. THE CONTRACTOR SHALL HAVE ONE SIGNEDCOPY OF THE PLANS (APPROVED BY THEAPPROPRIATE GOVERNING AGENCIES), ONECOPY OF ALL APPLICABLE STANDARDS ANDSPECIFICATIONS, AND A COPY OF ANYPERMITS AND EXTENSION AGREEMENTSNEEDED AT THE JOB SITE AT ALL TIMES.6. ALL UNDERGROUND PIPE ELEVATIONS ARETOP OF PIPE (T.O.P.) UNLESS OTHERWISENOTED.7. THE CONTRACTOR SHALL PLACE WARNINGSIGNS TO PROVIDE ADEQUATE WARNING OFHAZARDS TO THE WORKMEN AND THEPUBLIC. SIGNS SHALL BE REMOVEDPROMPTLY WHEN THE HAZARDS NOLONGER EXIST. THE CONTRACTOR SHALLPROVIDE GUARDRAILS, FENCES, OR OTHERBARRICADES AND WARNING LIGHTS, WHICHSHALL BE PLACED AT ALL EXCAVATIONSWHICH ARE ADJACENT TO PATHS,WALKWAYS, SIDEWALKS, DRIVEWAYS, ANDOTHER PEDESTRIAN OR VEHICLETHOROUGHFARES. ADEQUATE BARRIERSFOR PHYSICAL PROTECTION SHALL BEPROVIDED AT ALL REMOTELY LOCATEDEXCAVATIONS. WHEN REQUIRED BY AGOVERNING AGENCY, TRENCHES SHALLNOT BE LEFT OPEN OVERNIGHT.8. CONTRACTOR SHALL PROTECT ALL OPENTRENCHING AND OTHER CONSTRUCTIONACTIVITIES TO PREVENT INJURY TO THEGENERAL PUBLIC. A TRENCH LEFT OPENOVERNIGHT SHALL BE MINIMIZED AND SHALLBE ADEQUATELY BARRICADED AND FENCEDAT NIGHT. NO MORE THAN FIVE HUNDRED(500) FEET OF TRENCH SHOULD BE LEFTOPEN OVERNIGHT. CONTRACTOR SHALLLIMIT ACCESS TO CONSTRUCTION AREAS TOPROTECT THE GENERAL PUBLIC.9. CONTRACTOR SHALL ADHERE TO THE MOSTCURRENT REVISION OF THE COMPANYFACILITIES AND PIPELINE CONSTRUCTIONSPECIFICATIONS AND THE PIPELINECOMPLIANCE AND STANDARDS (PC&S)MANUAL. IF THERE IS A DISCREPANCY INANY STANDARD, SPECIFICATION, ORAGREEMENT, THE MORE STRINGENTREQUIREMENT WILL APPLY.10. WHEN CONSTRUCTION CAUSES ANOBSTRUCTION TO SIDEWALKS,CROSSWALKS, OR WALKING PATHS,CONTRACTOR SHALL PROVIDE A DETOURTHAT MEETS ALL AMERICANS WITHDISABILITIES ACT (ADA) REQUIREMENTS.11. CONTRACTOR SHALL REMOVE, PROTECT,STORE, AND REPLACE ALL SIGNS WITHINROW IMPACTED BY CONSTRUCTION. SIGNSSHALL BE REINSTALLED PER DETAIL OFAPPROPRIATE GOVERNMENT ENTITY. PRIORTO SIGN REMOVAL, CONTRACTOR SHALLIDENTIFY ANY DAMAGED SIGNS ANDREPORT TO COMPANY PROJECT MANAGER.ANY SIGNS DAMAGED DURING OR AFTERREMOVAL SHALL BE REPLACED ATCONTRACTOR'S EXPENSE.12.CONTRACTOR SHALL MAINTAIN ACCESS TORESIDENCES AND BUSINESSES ADJACENTTO CONSTRUCTION AS SPECIFIED IN ROWAGREEMENTS.13. CONTRACTOR SHALL PROVIDE XCELENERGY WITH A SET OF PLANS MARKED "ASBUILT". THE PLANS SHALL SHOW ALLUTILITIES, STREETS, GRADING, AND ANYVARIATIONS FROM THE APPROVED PLAN.CONSTRUCTION NOTES:1. ALL HARD SURFACE EXCAVATIONS SHALL BESAW CUT TO MINIMIZE DAMAGES BEYONDTHE WORK AREA.2. CONTRACTOR IS RESPONSIBLE FORPROTECTING AND SUPPORTING ADJACENTFACILITIES THAT HAVE NOT BEENIDENTIFIED FOR REMOVAL.3. ALL BUTT WELDS TWO (2) INCH DIAMETERAND LARGER WILL BE 100%RADIOGRAPHICALLY INSPECTED. IT ISPREFERRED THAT ALL WELDS SMALLERTHAN TWO (2) INCH DIAMETER BE SOCKETWELDED. ALL WELDS SHALL HAVE 100%NONDESTRUCTIVE EVALUATION (NDE)PERFORMED. 100% NDE IS REQUIRED PRIORTO IN-SERVICING ANY FACILITY UNLESS THECONTRACTOR HAS PRIOR WRITTENAPPROVAL FROM THE COMPANY PROJECTENGINEER. THE NDE RESULTS MUST PASSTHE APPLICABLE NDE STANDARD PRIOR TOBEING PLACED IN SERVICE.4. NIGHT CAPS ON NEW CONSTRUCTION THATARE PHYSICALLY DISCONNECTED FROMANY SOURCE OF GAS ARE EXCLUDED FROMTHIS REQUIREMENT. VALVES AND STOPPLESARE NOT CONSIDERED DISCONNECTED.5. ALL ARC BURNS AND/OR GRINDER MARKSOUTSIDE OF THE BEVEL WILL BE CUT OUTAT CONTRACTOR'S EXPENSE.6. THE CONTRACTOR SHALL COORDINATEWITH THE COMPANY INSPECTOR FORSCHEDULING NDE SERVICES.7. UNLESS OTHERWISE NOTED IN THE SCOPEOF WORK OR IN WRITING BY THE COMPANYENGINEER, ALL PRESSURE TESTING SHALLBE PERFORMED AFTER THE PIPE ISINSTALLED IN ACCORDANCE WITH THEPROJECT PLANS.8. ALL PRESSURE TESTING SHALL BEPERFORMED IN ACCORDANCE WITH THEPROJECT SPECIFIC TESTING PROCEDURESAND WITH COMPANY STANDARDS. IF THECONTRACTOR WISHES TO DEVIATE FROMTHE TESTING PROCEDURE, THE REQUESTEDCHANGES MUST FIRST BE APPROVED BYTHE PROJECT ENGINEER.9. TAPPING SHOULD BE MINIMUM OF 18 INCHESAWAY FROM ANY FLANGE OR THREADEDCONNECTIONS AND 3 INCHES FROM ANYWELDED SEAM.10. ALL PIPE IDENTIFIED IN PLANS TO BERETIRED IN PLACE WILL BE COMPLETELYPURGED WITH NITROGEN AND THE ENDSSEALED. CONTRACTOR TO PROVIDE ALLLABOR, MATERIAL, AND EQUIPMENTNECESSARY TO RETIRE PIPE IN PLACE.11. IF REQUIRED BY GOVERNING AGENCY,CONCRETE SHALL NOT BE PLACED UNTILTHE FORMS AND REBAR HAVE BEENINSPECTED AS REQUIRED.RESTORATION NOTES1. UNLESS OTHERWISE SPECIFIED, THECONTRACTOR SHALL BE RESPONSIBLE FORTHE REMOVAL AND REPLACEMENT OF ALLMATERIALS WITHIN DEDICATEDRIGHTS-OF-WAY, AND ALL MATERIALS ANDWORKMANSHIP SHALL MEET THE ROADWAYDESIGN AND CONSTRUCTION STANDARDSOF THE APPROPRIATE GOVERNING AGENCY.IN THE ABSENCE OF AN AGENCYSTANDARD/SPECIFICATION, LOCALDEPARTMENT OF TRANSPORTATION (D.O.T.)STANDARDS SHALL BE FOLLOWED.2. COMPACTION SHALL BE IN ACCORDANCEWITH THE APPROPRIATE GOVERNINGAGENCY SPECIFICATIONS AND MAY BESUBJECT TO INSPECTION AND TESTING BYTHE GOVERNING AGENCY AND XCELENERGY STANDARDS/ SPECIFICATIONS.3. UNLESS OTHERWISE SPECIFIED,CONTRACTOR SHALL RESTORE ALLDAMAGED IRRIGATION LINES ANDASSOCIATED ELECTRICAL LINES RESULTINGFROM WORK PERFORMED AT THECONTRACTOR'S EXPENSE.4. CONTRACTOR SHALL RESTORE ALLLANDSCAPE FEATURES THAT HAVE BEENDAMAGED OR REMOVED DURINGCONSTRUCTION, INCLUDING TREES. TREEAND LANDSCAPE MITIGATION SHALL BEPERFORMED IN ACCORDANCE WITH THEAPPROPRIATE GOVERNING AGENCYPROVIDED MITIGATION PLAN.ENVIRONMENTAL NOTESREFER TO SECTION 15 "PIPELINE LIQUIDS ANDPCB MANAGEMENT" FOR SPECIFIC PC&SREQUIREMENTS.1. ALL FOREIGN MATERIALS AND TRASH,INCLUDING BIODEGRADABLE MATERIALSSUCH AS ORANGE AND BANANA PEELS,BROUGHT ONTO THE RIGHT OF WAY OREASEMENT DURING THE WORK WILL BEHAULED AWAY TO AN APPROVED LANDFILL.NO REFUSE, TRASH, OR ROPE USED FORPROTECTING COATING DURING THETRANSPORT OF PIPE WILL BE THROWN INTOTHE DITCH. ANY TRASH IN THE DITCH WILLBE REMOVED BEFORE BACKFILLING.2. CONTRACTOR WILL PLACE A TARP UNDERALL TAPE PRIMING OPERATIONS. ANY SOILCONTAMINATED BY COATING APPLICATIONSWILL BE HAULED TO A DISPOSAL FACILITYAPPROVED BY THE COMPANY ATCONTRACTOR'S EXPENSE.3. ANY FUEL SPILLS, BROKEN HYDRAULIC LINEOIL SPILLS, ETC., WHICH CONTAMINATE THESOIL, WILL REQUIRE REMEDIATION BY THECONTRACTOR. THIS WILL REQUIRE THATTHE CONTAMINATED SOIL BE HAULED TO ADISPOSAL FACILITY APPROVED BY THECOMPANY. REMEDIATION, HAULING, ANDDISPOSAL WILL BE AT CONTRACTOR'SEXPENSE.4. WHERE ORGANIC MATERIAL ISENCOUNTERED DURING EXCAVATION,CONTRACTOR SHALL HAUL OFF ANDDISPOSE OF UNSUITABLE ORCONTAMINATED MATERIAL, AND REPLACEMATERIAL WITH APPROPRIATE BACKFILLMATERIAL.5. PRE-EXISTING CONTAMINATED SOIL MUSTBE HAULED TO A DISPOSAL FACILITYAPPROVED BY XCEL ENERGY. CONTRACTORSHALL NOTIFY COMPANY INSPECTORIMMEDIATELY UPON ENCOUNTERINGUNSUITABLE MATERIAL SO THATQUANTITIES CAN BE TRACKED AND XCELENERGY CAN BEGIN WORKING TO FIND ASUITABLE DISPOSAL LOCATION.6. TREE REMOVALS SHALL BE AVOIDEDWHEREVER POSSIBLE, AND ALL TREESSHALL BE PROTECTED. CONTRACTOR SHALLCOORDINATE WITH XCEL ENERGY'SPROJECT MANAGER OR DESIGNEE PRIOR TOIMPACTING TREES.7. CONTRACTOR SHALL FOLLOW THEPROVIDED STORM WATER MANAGEMENTPLANS, IF APPLICABLE. THE CONTRACTORSHALL MAKE A BEST EFFORT TO MAINTAINALL EROSION CONTROL DEVICES AND USEBEST PRACTICES TO MINIMIZE SEDIMENTDISCHARGE. WHEN ANY EROSION CONTROLDEVICES ARE DAMAGED, THE CONTRACTORMUST NOTIFY THE APPLICABLESUB-CONTRACTOR AND INSPECTOR FORREPAIR AND INSPECTION FOR ALL AREASIMPACTED BY THE CONSTRUCTIONPROJECT. THIS IS INCLUDING, BUT NOTLIMITED TO: SPECIFIED CONSTRUCTIONLIMITS, STAGING AREAS, PERMANENTEASEMENTS, TEMPORARY EASEMENT ANDTEMPORARY USE AREAS.8. ALL CONSTRUCTION ACTIVITIES MUSTCOMPLY WITH ALL LOCAL, STATE ANDFEDERAL GOVERNING ENVIRONMENTALAGENCIES PERMITTING PROCESSES FORSTORMWATER DISCHARGES ASSOCIATEDWITH CONSTRUCTION ACTIVITY.9. ALL HYDROSTATIC TEST WATER SHALL BEMANAGED IN ACCORDANCE WITH THEFACILITIES AND PIPELINE CONSTRUCTIONSPECIFICATIONS PRIOR TO DISCHARGE.UNDER NO CIRCUMSTANCES SHALL TESTWATER BE DISCHARGED WITHOUT THEAPPROVAL OF AN ENVIRONMENTALSPECIALIST.10. CONTAMINATED TESTING WATER REQUIRESEITHER JURISDICTIONAL FILTRATION ANDDISCHARGE, OR HAUL OFF DISPOSAL FROMSITE.11. IF GROUND WATER DEWATERING ISREQUIRED, CONTRACTOR SHALL FOLLOWANY STATE CONSTRUCTION DEWATERINGDISCHARGE PERMIT AND, IF APPLICABLE,PROJECT SPECIFIC STORMWATERMANAGEMENT PLANS.12. IF GROUNDWATER DISPOSAL IS REQUIRED,THE CONTRACTOR MUST COORDINATEDISPOSAL WITH XCEL ENERGY.SERVICE CENTER:CAD FILE NAME:BYDRAWINGREVISIONSNO.DESCRIPTIONDATEDESIGNED BY:APPROVED BY:CHECKED BY:DRAWN BY:TYPE:LOCATION:DIVISION:CITY/COUNTY :IN SERVICE DATE:HISTORY DATEFLOC:®SIBLEY PROPANE PLANTGENERAL NOTES0200AD2_0000.dwgNORTHMENDOTA HEIGHTS/ DAKOTAFACILITYNORTHERN STATES POWER COMPANYATB07/16/2021MM07/19/2021JM07/19/2021MHM07/19/2021A ISSUED FOR PERMITCEPC 04/22/22TBD1401 Blake Street, Denver, CO 80202(303) 623-3345PC PACKET Pg. # 57 1.NEW DRAWING SCOPE SHOWN DARK/BOLD FOR CLARITY. ALL EXISTING CONDITIONS ANDEQUIPMENT OUTSIDE SCOPE OF EACH INDIVIDUAL DRAWING SHOWN IN LIGHTER LINETYPES.2.SCALES DEPICTED ARE FOR ANSI D (22"x34") PRINTED DRAWINGS. REDUCE SCALE BY 1/2 IFPRINTED AT 11"x17" FULL SIZE (EX: 1/4" = 1'-0" ANSI D = 1/8" = 1'-0" 11"x17")3.CONTRACTOR TO FIELD VERIFY DIMENSIONS PRIOR TO FABRICATION AND INSTALLATION.4.FOLLOW COATING AND PAINTING REQUIREMENTS IN LATEST VERSION OF XCEL PIPELINECOMPLIANCE AND STANDARDS MANUAL, SECTION 9, FOR ALL PIPE AND FITTINGS.5.BURIAL DEPTH OF LINES SHALL BE IN ACCORDANCE WITH XCEL ENERGY'S PIPELINE COMPLIANCEAND STANDARDS MANUAL DEPTH OF COVER REQUIREMENTS AS INDICATED IN SECTION 7, LATESTEDITION. SEE TRENCH AND INSTRUMENTATION DETAIL SHEET FOR INFORMATION REGARDINGBURIAL DEPTHS AND BEDDING REQUIREMENTS.6.WOVEN POLYPROPLYLENE SLIT FILM GEOTEXTILE FABRIC OVERLAID WITH 3/4 INCH AGGREGATEBASE TO BE USED IN ALL FENCED AREAS.7.NEW FENCE TO BE DESIGNED BY OTHERS AND INSTALLED PER XCEL STANDARDS. FENCE SHALLCONSIST OF BROWN VINYL COATED GALVANIZED STEEL CHAIN LINK 60 INCHES HIGH PLUS 12 INCHBARBWIRE CAP. THE FABRIC SHALL BE A MINIMUM OF 9 GAUGE (0.148 INCH) WITH 2 INCH SQUAREMESH. THE CORNER AND GATE POST SHALL BE 3 INCH NOMINAL O.D., RAILS AND GATE FRAMESHALL BE 1-5/8 INCH NOMINAL OD AND LINE POSTS SHALL BE 2-1/2 INCH NOMINAL OD WALKTHROUGH GATES SHALL BE NO LESS THAN 36 INCH WIDE AND VEHICLE GATES SHALL BE NO LESSTHAN 12' WIDE.8.BOLLARDS TO BE MINIMUM OF 4 INCH DIAMETER STEEL AND CONCRETE FILLED WITH A MINIMUMBURIAL DEPTH OF 36 INCH WITH A CONCRETE FOOTING OF NOT LESS THAN 15 INCH DIAMETER.BOLLARDS SHALL COMPLY WITH XCEL ENERGY’S COMPLIANCE AND STANDARDS MANUAL FORABOVEGROUND FACILITY PROTECTION, SECTION 1.23, LATEST EDITION. CONSTRUCTIONCONTRACTOR SHALL PROVIDE BOLLARD MATERIALS.9.NEW PIPING SCOPE SHOWN DARK/BOLD FOR CLARITY. ALL EXISTING CONDITIONS ANDEQUIPMENT OUTSIDE SCOPE OF EACH INDIVIDUAL DRAWING SHOWN IN LIGHTER LINETYPES.10.UNDERGROUND PORTION OF PIPELINE SHOWN FOR INFORMATION AND MAY NOT BE IN LOCATIONPICTURED.11. ANY EXISTING STOPPLE LOCATIONS MAY DIFFER FROM THE LOCATIONS SHOWN IN THIS DRAWING;FIELD LOCATE AS APPROPRIATE.12. BARRED TEES TO BE INSTALLED ON ALL NEW BYPASS AND BRIDLE CONSTRUCTION.13. NEW PIPE AND COMPONENTS TO BE HYDROSTATICALLY TESTED IN ACCORDANCE WITH XCELENERGY AND CFR 192 TEST REQUIREMENTS FOR STEEL PIPELINE. THE NEW PIPE DESIGNPRESSURE IS 1,000 PSIG WITH A CORRESPONDING DESIGN TEMPERATURE OF 120 °F.14.NEW INSTRUMENTATION SCOPE SHOWN DARK/BOLD FOR CLARITY. ALL EXISTING CONDITIONSAND EQUIPMENT OUTSIDE SCOPE OF EACH INDIVIDUAL DRAWING SHOWN IN LIGHTER LINETYPES.15. CONTRACTOR TO USE BEST INSTALLATION PRACTICES AND MANUFACTURER RECOMMENDEDMETHODS FOR TUBING AND TUBING SUPPORT (APPROXIMATELY EVERY 3 FEET). ANY DEVIATIONFROM THE TUBING ROUTE INDICATED ON THESE DRAWINGS SHALL BE APPROVED BY XCELENERGY'S PROJECT ENGINEER IN WRITING PRIOR TO IMPLEMENTATION OF SAID REVISED ROUTE.16.LETTER LINE TAGS ON INSTRUMENTATION DRAWINGS CORRESPOND TO TUBING RUNS INDICATEDON P&ID.GENERAL DRAWING NOTESGENERAL INSTRUMENTATION NOTESGENERAL PIPING NOTESGENERAL CONSTRUCTION NOTESSERVICE CENTER:CAD FILE NAME:BYDRAWINGREVISIONSNO.DESCRIPTIONDATEDESIGNED BY:APPROVED BY:CHECKED BY:DRAWN BY:TYPE:LOCATION:DIVISION:CITY/COUNTY :IN SERVICE DATE:HISTORY DATEFLOC:®SIBLEY PROPANE PLANTGENERAL CONTRACTOR NOTES0201AD2_0000.dwgNORTHMENDOTA HEIGHTS/ DAKOTAFACILITYNORTHERN STATES POWER COMPANYATB07/16/2021MM07/19/2021JM07/19/2021MHM07/19/2021A ISSUED FOR PERMITCEPC 04/22/22TBD1401 Blake Street, Denver, CO 80202(303) 623-3345PC PACKET Pg. # 58 II0.45 N/A5% TO 7%EXPOSURE CATEGORY & CLASSFFREEZINGTHAWINGCCORROSIONPROTECTIONSSULFATEEXPOSURECEMENTTYPEW/CRATIO(MAX.)AIRCONTENTMAXSLUMPOTHERPROVISIONSPPERMEABILITYF2C1S2P0 TO P1DRILLED PIERS6" TO 9"f 'cAT28 DAYS4500 psiALL CONC.4"#4#5#6#7#8#9#10#11.500".625".750".875"1.00"1.125"1.27"1.41"20"26"29"47"61"77"97"120"15"20"23"36"47"59"75"92"TOPBAROTHERBAR SIZEBARDIA#3.375" 15"12"EARTHWORK AND CONCRETE CONSTRUCTION NOTES / SPECIFICATIONSA.GENERAL SITE INFORMATION1. DESIGN CODE = IBC 2018, MNBC 2020; RISK CATEGORY =IV. DAKOTA COUNTY, MN (44.90244167,-93.1311555).2. SNOW LOAD = 50 PSF3. WIND SPEED = V = 121 MPH; EXPOSURE = "C" (CONSERVATIVE) ULT4. SITE CLASS = "D"5. SEISMIC DESIGN ENVELOPE PARAMETERS;B. EARTHWORK AND FOUNDATION CONSTRUCTION1. FOUNDATION CONSTRUCTION AND SITE PREPARATION METHODS SHALL FOLLOW RECOMMENDATIONS OUTLINED IN THE IBC 2018. SPECIFICREQUIREMENTS ARE AS FOLLOWS:a. FOUNDATION SYSTEM: SHALLOW SPREAD FOOTINGS, DEEP FOUNDATIONS.b. FROST DEPTH: 42 IN.c. SOIL ENGINEERING DESIGN PARAMETERS: PER SITE SPECIFIC GEOTECH CONDUCTED 2021 BY CAMPOS EPC, LLC.2. EXCAVATION AND BACKFILL:a. ALL EXCAVATION AND GRADING WORK FOR FOUNDATIONS SHALL CONFORM TO THE SPECIFICATIONS HEREIN AND ALL LOCAL, COUNTY, STATE,AND FEDERAL LAWS AND REGULATIONS. ENTIRE AREA AROUND EACH FOUNDATION MUST BE THOROUGHLY PROBED FOR UNDERGROUND PIPE,CONDUIT, HIGH PRESSURE LINES, ETC. BEFORE ANY EXCAVATION BEGINS.b. WHENEVER POSSIBLE, EXCAVATION FOR CONCRETE FOUNDATION SHALL BE NEATLY CUT TO THE EXACT SIZE SPECIFIED.c. IF THE GROUND WATER LEVEL IS FOUND TO BE ABOVE THE BOTTOM OF THE FOUNDATION EXCAVATION, THE FOLLOWING PROCEDURE SHALL BEFOLLOWED:I. EXCAVATE THE FOUNDATION 1' BELOW THE BOTTOM OF THE CONCRETE FOUNDATION AND 1' BEYOND THE FOUNDATION BASE ON EACH SIDE.II. THE WATER SHALL BE REMOVED FROM THE EXCAVATED FOUNDATION. CONTRACTOR SHALL KEEP EXCAVATED FOUNDATION FREE OFWATER AT ALL TIMES UNTIL THE BASE HAS BEEN PREPARED TO THE FINISHED ELEVATION OF THE FOUNDATION BASE.III. PLACE WOVEN GEOTEXTILE FABRIC MIRAFI 600X OR EQUAL 1' BEYOND THE FOUNDATION BASE ON EACH SIDE.IV. PLACE 12" OF CLASS II AGGREGATE BASE IN TWO SEPARATE 6" LIFTS, COMPACT TO 90% OF THE MAX DRY DENSITY PER ASTM D1557.V. BEFORE PLACING THE FORMS, REBAR AND CONCRETE POUR, THE CONTRACTOR SHALL KEEP THE EXCAVATED FOUNDATION FREE OFWATER.d. DURING AND UPON COMPLETION OF THE INSTALLATION OF ANY FOUNDATION, THE WORK SHALL BE INSPECTED AND APPROVED BY THE OWNEROR THEIR REPRESENTATIVE BEFORE THE EXCAVATION IS BACKFILLED. AFTER SUCH APPROVAL, THE EXCAVATION, UNLESS REQUIRED TO BELEFT OPEN FOR GOOD CAUSE, SHALL BE PROMPTLY BACKFILLED IN A SATISFACTORY MANNER PROVIDED THE FOUNDATION HAS ATTAINEDSUFFICIENT STRENGTH.e. FORMS SHALL NOT BE STRIPPED UNTIL 3 DAYS AFTER THE POUR OR CONCRETE STRENGTH REACHES 75% F'C, WHICHEVER OCCURS LATER.f. STRUCTURAL BACKFILL SHALL CONSIST OF GRANULAR NON-EXPANSIVE SAND, GRAVEL AND SAND-GRAVEL MIXTURES, WITH PLASTICITY INDEXBELOW 15, WITH 100% LESS THAN 3.5" SIZE ROCK AND MAX. 20% PASSING NO. 200 SIEVE. IT SHALL BE PLACED IN 8" MAX. LIFTS.3. SUBGRADE CONDITIONS SHOULD BE INSPECTED BY A GEOTECHNICAL ENGINEER PRIOR TO PLACEMENT OF ANY CONCRETE. STRUCTURAL FILLSHALL BE INSPECTED AND TESTED.LEAN CONCRETE SHALL BE (F'C) <1500 psi4. AGGREGATES SHALL BE CRUSHED STONE CONFORMING TO "SPECIFICATION FOR CONCRETE AGGREGATES" ASTM C33.5. WATER USED IN MIXING CONCRETE SHALL CONFORM TO ASTM C1602.6. REINFORCING BARS SHALL BE DEFORMED, INTERMEDIATE GRADE NEW BILLET STEEL CONFORMING TO ASTM A615 (ASTM A706 OR ASTM A615MEETING THE REQUIREMENTS OF ACI-318, SECTION 21.1.5.2) GRADE 60. FIELD SPLICES AND DEVELOPMENT LENGTH SHALL COMPLY WITH THEFOLLOWING SCHEDULE, UNLESS NOTED OTHERWISE:REINFORCEMENT SHALL BE INSPECTED BEFORE CONCRETE IS PLACED7. CONCRETE PROTECTION FOR REINFORCEMENT - CLEAR DISTANCE FROM FACE OF CONCRETE TO BAR SHALL BE AS FOLLOWS UNLESS NOTEDOTHERWISE.a. CONCRETE DEPOSITED AGAINST GROUND OR VOID FORM: 3" .b. CONCRETE SURFACES EXPOSED TO WEATHER OR IN CONTACT WITH GROUND AFTER REMOVAL OF FORMS: 1 1/2" FOR #5 BARS AND SMALLER, 2"FOR #6 THROUGH #18.c. SURFACES NOT EXPOSED TO GROUND OR WEATHER: 3/4" FOR SLABS AND WALLS WITH #11 AND SMALLER BARS, 1 5/8" FOR BEAMS ANDCOLUMNS.8. EXPANSION JOINT MATERIAL FOR EXPANSION OR ISOLATION JOINTS SHALL BE PREMOLDED, BITUMINOUS IMPREGNATED FIBERBOARD.CONFORMINGTO ASTM D994. JOINT THICKNESS SHALL BE 1/2" UNLESS NOTED OTHERWISE ON DESIGN DRAWINGS.9. JOINT SEALANT FOR ALL CONCRETE CONTROL, CONSTRUCTION AND ISOLATION JOINTS SHALL BE SIKAFLEX-1A BY SIKA CORP., OR APPROVEDEQUAL.10. GROUT USED FOR VARIOUS APPLICATIONS SHALL BE AS FOLLOWS:a. GROUT USED FOR STRUCTURAL STEEL COLUMN BASE PLATES SHALL BE PREPACKED, HIGH-FLUIDITY NON-SHRINK, NATURAL AGGREGATEGROUT SUCH AS "MASTERFLOW 713 PLUS" BY BASF (FORMERLY MASTER BUILDERS) OR APPROVED EQUAL. FOLLOW MANUFACTURER'SINSTRUCTIONS FOR INSTALLATION. SPACE BETWEEN THE ANCHOR RODS AND OVERSIZED HOLES IN THE BASE PLATE SHALL BE FULLY GROUTEDWITH NON-SHRINK GROUT TO ASSURE PROPER SHEAR TRANSFER. GROUTING SHALL BE PERFORMED ONE BOLT AT A TIME, WHILE OTHER BASEPLATE RODS ARE FULLY TIGHTENED.b. GROUT USED FOR GROUTING COMPRESSORS, TURBINES, LARGE PUMPS, AND OTHER RECIPROCATING OR ROTATING EQUIPMENT THATREQUIRES EPOXY GROUTING AS SHOWN ON DESIGN DRAWINGS SHALL BE "FIVE STAR HP" EPOXY GROUT BY FIVE STAR PRODUCTS, INC. ORAPPROVED EQUAL, FOLLOW MANUFACTURER'S INSTRUCTIONS FOR INSTALLATION.c. GROUT USED FOR DRILLED AND EPOXY-GROUTED REBARS SHALL BE HILTI HIT-RE-500-SD EPOXY OR APPROVED EQUAL.11. COLUMN BASE PLATE GROUT PROCEDURE:a. SELECT A NON-SHRINK, NON-METALLIC GROUT DESIGNED FOR DAMP PACKING, BASF CONSTRUCTION GROUT OR OWNER APPROVED EQUAL,FOLLOW ALL MFGR.'S INSTRUCTIONS. APPLY GROUT BETWEEN THE TEMPERATURE RANGE OF 50 TO 90 DEG. F.b. BUSH HAMMER AND CLEAN CONCRETE SURFACE WHERE GROUT WILL BE APPLIED.c. CLEAN ALL SURFACES TO BE GROUTED.d. SATURATE CONCRETE SURFACES WITH CLEAN WATER 24 HOURS BEFORE GROUTING, REMOVE WATER IMMEDIATELY BEFORE APPLICATION.e.PLACE TIGHT AND SECURE FORMS ON ALL SIDES EXCEPT THE SIDE WHERE THE GROUT WILL BE APPLIED.f. MIX THE GROUT FOLLOWING MFGR.'S INSTRUCTIONS, THE GROUT SHOULD BE DAMP ENOUGH THAT IT CAN BE MOLDED INTO A BALL, THE BALLSHOULD NEITHER SLUMP NOR CRUMBLE DUE TO LACK OF MOISTURE.g. PLACE GROUT IMMEDIATELY AFTER MIXING, RAMMING UNDER THE BASE PLATE WITH A WOODEN DOWEL, WORKING AT AN ANGLE TO THECORNERS TO ENSURE EVEN COMPACTION.h. REMOVE FORMS, SHAPE 45 DEG. BEVEL TO CONCRETE SURFACE ALL SIDES.i. CURE 8 HOURS KEEPING MOIST WITH BURLAP, ETC.12. VOID FORM MATERIAL SHALL BE "SURE VOID" OR APPROVED EQUAL. KEEP VOID FROM MATERIAL DRY DURING PLACEMENT AND INSTALL INACCORDANCE WITH MANUFACTURER'S RECOMMENDATIONS.VOID FORM SHALL BE BIODEGRADABLE AND CAPABLE OF SUPPORTING THE FLUIDWEIGHT OF THE CONCRETE.13. ALL WELDING PROCEDURES, INCLUDING STUD WELDING, AND QUALIFICATIONS SHALL BE IN ACCORDANCE WITH AWS D1.1.14. ALL WALKS AND EXTERIOR SLABS SHALL BE LIGHT BROOM FINISHED AFTER CONCRETE HAS RECEIVED A FLOAT FINISH. FOLLOW ACI 301PROCEDURES.15. EXPOSED CORNERS SHALL BE CHAMFERED 3/4" UNLESS NOTED.16. CHECK ALL ELECTRICAL, MECHANICAL AND PIPING DRAWINGS FOR EMBEDDED ITEMS (PIPE, CONDUIT, ETC.) AND BLOCKOUTS BEFORE PLACINGCONCRETE.17. IF REINFORCING OR MESH IS FIELD CUT FOR SMALL OPENINGS, CONDUIT, ELECTRICAL BOXES, ETC. CUT REINFORCING SHALL BE REPLACED WITH ANEQUIVALENT AREA OF STEEL. ALL SUCH BARS SHALL EXTEND 24" MINIMUM (OR MESH LAP 2") BEYOND CORNER OR EDGE OF OPENING IFNECESSARY. REINFORCING SHALL BE BENT TO PROVIDE THIS MINIMUM EMBEDMENT. MAKE ALL BARS CONTINUOUS AROUND CORNERS.18. THE CONTRACTOR SHALL VERIFY ALL EQUIPMENT ANCHOR ROD DIMENSIONS AGAINST THE CERTIFIED EQUIPMENT DRAWINGS BEFORE PLACINGCONCRETE. TOLERANCES FOR ANCHOR ROD LOCATIONS AND ELEVATIONS SHALL BE AS DEFINED IN THE AMERICAN INSTITUTE OF STEELCONSTRUCTION (AISC) CODE OF STANDARD PRACTICE.19. ALL WATER STOP SHALL BE BENTONITE FLEXIBLE STRIP WATERSTOP BY VOLCLAY OR APPROVED EQUALD. CONTRACTOR'S MEANS AND METHODS.1. THE STRUCTURAL DRAWINGS AND NOTES REPRESENT THE FINISHED STRUCTURE. THEY DO NOT INDICATE THE METHOD OF CONSTRUCTION. FORTHIS REASON, DURING ERECTION OF THE STRUCTURE AND/OR THE DEMOLITION OF THE STRUCTURE OR PORTIONS OF THE STRUCTURE, THECONTRACTOR SHALL BE RESPONSIBLE FOR TEMPORARY BRACING TO WITHSTAND ALL LOADS TO WHICH THE STRUCTURE MAY BE SUBJECTED,INCLUDING LATERAL LOADS, EXCAVATIONS, SHORING, STOCKPILES OF MATERIALS AND EQUIPMENT, IN ADDITION TO ANY WORKER SAFETYREQUIREMENTS. SUCH BRACING SHALL BE LEFT IN PLACE AS LONG AS IT MAY BE REQUIRED FOR SAFETY AND UNTIL ALL STRUCTURAL FRAMING ANDDIAPHRAGMS ARE IN PLACE WITH CONNECTIONS COMPLETED DISCOVERY.2. DURING CONSTRUCTION, THE CONTRACTOR MAY ENCOUNTER EXISTING CONDITIONS OR AS BUILT DIMENSIONS WHICH ARE NOT NOW KNOWN ORARE AT VARIANCE WITH PROJECT DOCUMENTATION (DISCOVERY). SUCH CONDITIONS MAY INTERFERE WITH CONSTRUCTION OR REQUIREPROTECTION AND / OR SUPPORT OF EXISTING WORK DURING CONSTRUCTION, OR MAY CONSIST OF DAMAGE OR DETERIORATION TO THESTRUCTURAL MATERIALS OR COMPONENTS WHICH COULD JEOPARDIZE THE INTEGRITY OF THE STRUCTURE(S) RELATED TO SUCH DISCOVERIES. ITIS THE CONTRACTOR'S RESPONSIBILITY TO IMMEDIATELY NOTIFY THE STRUCTURAL ENGINEER OF ANY DISCOVERY HE OR SHE IDENTIFIES THAT MAYINTERFERE WITH THE PROPER EXECUTION OF THE WORK OR JEOPARDIZE THE INTEGRITY OF THE STRUCTURE(S) PRIOR TO PROCEEDING WITHWORK RELATED TO SUCH DISCOVERIES.C. CONTRACTOR'S COORDINATION1. THE CONTRACTOR SHALL VERIFY AND COORDINATE ALL DIMENSIONS AND DETAILS BETWEEN ALL TRADES, SUBCONTRACTORS AND VENDORSUPPLIED EQUIPMENT PRIOR TO COMMENCING ANY CONSTRUCTION. THE STRUCTURAL ENGINEER SHALL BE IMMEDIATELY NOTIFIED OF ANYINCONSISTENCIES RELATING TO THE STRUCTURE. FAILURE TO DO SO SHALL RELIEVE THE STRUCTURAL ENGINEER OF ALL CONSEQUENCESRELATED TO THE INCONSISTENCY.2. SEE MECHANICAL, ELECTRICAL AND OTHER DISCIPLINE'S DRAWINGS FOR ADDITIONAL INFORMATION RELATING TO THE STRUCTURE.F. DRAWING CONVENTIONS1. T.O.C. EL. INDICATES TOP OF CONCRETE ELEVATION.2. B.O.C. EL. INDICATES BOTTOM OF CONCRETE ELEVATION.3. SCALES NOTED ON DRAWINGS ARE ACCURATE FOR FULL-SIZE (22x 34)DRAWINGS ONLY.SCHEDULE OF CIVIL INSPECTIONS / SPECIAL INSPECTIONS (AS APPLICABLE)INSPECTION AND TESTING REPORTS SHALL BE COMPLETED AND DISTRIBUTED AT THE COMPLETION OF EACH TASK. IF A TASK IS TO TAKE LONGER THANTHREE (3) DAYS, PROVIDE REPORTS FOR EACH DAY. PROVIDE COPIES OF REPORTS TO: CONTRACTOR, OWNER, AND THE ENGINEER OF RECORD.INSPECTOR TO KEEP A NON-COMPLIANCE LIST DOCUMENTING ITEMS INSPECTED NOT MEETING APPROVED CONSTRUCTION DOCUMENTS ANDWHEN/HOW RESOLVED.CIVIL INSPECTIONS ARE DEFINED HEREIN AS INSPECTIONS OF EARTHWORK, FOUNDATION CONSTRUCTION AND CONCRETE CONSTRUCTION.S S = 0.05; Fa = 1.6; S DS = 0.05S 1 = 0.03; Fv = 2.4; S D1 = 0.05SEISMIC DESIGN CATEGORY (SDC) = A; I E = 1.501. INSPECTION OF REINFORCING STEEL, INCLUDING PRESTRESSINGTENDONS AND PLACEMENT.2. INSPECTION OF REINFORCING STEEL WELDING IN ACCORDANCEWITH TABLE 1705.2.2, ITEM 2b.7. AT THE TIME FRESH CONCRETE IS SAMPLED TO FABRICATESPECIMENS FOR STRENGTH TESTS, PERFORM SLUMP AND AIRCONTENT TESTS AND DETERMINE THE TEMPERATURE OFTHE CONCRETE.8. INSPECTION OF CONCRETE AND SHOTCRETE PLACEMENT FORPROPER APPLICATION TECHNIQUES.3. INSPECTION OF ANCHORS CAST IN CONCRETE WHEREALLOWABLE LOADS HAVE BEEN INCREASED OR WHERESTRENGTH DESIGN IS USED.6. VERIFYING USE OF REQUIRED DESIGN MIX.4. INSPECTION OF ANCHORS POST-INSTALLED IN HARDENEDCONCRETE MEMBERS.INSPECTIONREQUIREDY/NYYYYYINSPECTIONREQUIREDY/NVERIFICATION AND INSPECTION TASKCONTINUOUSDURING TASKLISTEDPERIODICALLYDURING TASKLISTEDINSPECTION AND VERIFICATION OF CONCRETE CONSTRUCTIONFREQUENCY OF INSPECTIONY---XNYY---YREFERENCED STANDARDACI 318: 3.5,26.6YY---XX------XXX------AWS D1.4ACI 318: 26.6.4ACI 318: 26.7ACI 318: 26.7ACI 318: 26.4ASTM C 172ASTM C 31ACI 318: 26.12,26.13ACI 318: 26.55. VERIFICATION OF ANCHOR MATERIAL CERTIFICATIONS.Y---XAISC 360X10. VERIFICATION OF IN-SITU CONCRETE STRENGTH, PRIOR TOSTRESSING OF TENDONS IN POST-TENSIONED CONCRETE ANDPRIOR TO REMOVAL OF SHORING AND FORMS FROM BEAMS ANDSTRUCTURAL SLABS.11. INSPECT FORMWORK FOR SHAPE, LOCATION AND DIMENSIONSOF THE CONCRETE MEMBER BEING FORMED.9. INSPECTION FOR MAINTENANCE OF SPECIFIED CURINGTEMPERATURE AND TECHNIQUES.---------XXXACI 318:26.5.3ACI 318: 26.11ACI 318: 26.11VERIFICATION AND INSPECTION TASKCONTINUOUSDURING TASKLISTEDPERIODICALLYDURING TASKLISTED---X---X---XX---YYY1. VERIFY MATERIALS BELOW FOOTINGS ARE ADEQUATE TO ACHIEVEDESIRED BEARING CAPACITY.2. VERIFY EXCAVATIONS ARE EXTENDED TO PROPERDEPTH AND HAVE REACHED PROPER MATERIAL.3. PERFORM CLASSIFICATION AND TESTING OFCOMPACTED FILL MATERIALS.4. VERIFY USE OF PROPER MATERIALS, DENSITIES AND LIFT THICKNESSESDURING PLACEMENT AND COMPACTION OF COMPACTED FILL.5. PRIOR TO PLACEMENT OF COMPACTED FILL, OBSERVE SUBGRADE ANDVERIFY THAT SITE HAS BEEN PREPARED PROPERLY.FREQUENCY OF INSPECTIONINSPECTION AND VERIFICATION OF SOILS---XSERVICE CENTER:CAD FILE NAME:BYDRAWINGREVISIONSNO.DESCRIPTIONDATEDESIGNED BY:APPROVED BY:CHECKED BY:DRAWN BY:TYPE:LOCATION:DIVISION:CITY/COUNTY :IN SERVICE DATE:HISTORY DATEFLOC:®SIBLEY PROPANE PLANTGENERAL CIVIL/STRUCTURAL NOTES0202BD2_0000.dwgNORTHMENDOTA HEIGHTS/ DAKOTAFACILITYNORTHERN STATES POWER COMPANYATB07/16/2021MM07/19/2021JM07/19/2021MHM07/19/2021A ISSUED FOR PERMITCEPC 04/22/22B ISSUED FOR PERMITCEPC04/29/22TBD1401 Blake Street, Denver, CO 80202(303) 623-3345PC PACKET Pg. # 59 1. STRUCTURAL STEEL NOTES/SPECIFICATIONSA.GENERAL/STRUCTURAL DESIGN CRITERIA1. THE STRUCTURAL STEEL DESIGN SHALL CONFORM TO THE REQUIREMENTS OF THE LATEST ISSUE OF THE FOLLOWING CODES(AND SUPPLEMENTS), STANDARDS, OR SPECIFICATIONS:a. AISC STEEL CONSTRUCTION MANUAL, 14TH EDITION, INCLUDING AISC 360 SPECIFICATIONS FOR STRUCTURAL STEELBUILDINGS.b. AWS D1.1 STRUCTURAL WELDING CODE LATEST EDITION.B.STRUCTURAL STEEL FABRICATION AND INSTALLATION1. STEEL FABRICATION SHALL BE CONDUCTED ACCORDING TO AISC STEEL CONSTRUCTION MANUAL LATEST EDITION.2. ALL CONNECTIONS SHALL BE DETAILED PER STANDARDS SHOWN ON ENGINEERING DRAWINGS.C.MATERIAL GRADES1. STEEL PLATES: ASTM A362. TUBE STEEL: ASTM A500 GR. B3. WIDE FLANGE STEEL: ASTM A992 GR.504. ANGLE IRON: ASTM A36D.COATINGS1. STRUCTURAL STEEL SHALL BE SHOT BLASTED, PRIMED, AND GALVANIZED.2. ALL STEEL SHALL BE HOT DIP GALVANIZED PER ASTM A123 (3-MIL MIN.)3. IF FIELD MODIFICATIONS REQUIRE REMOVAL OF HDG, THEN UTILIZE ZRC COLD GALVANIZATION PRODUCT TO PERFORMGALVANIZATION TOUCH-UPS.E. WELDED CONNECTIONS1. SHOP CONNECTIONS SHALL BE WELDED, CONFORMING TO AWS D1.1 STRUCTURAL WELDING CODE, LATEST EDITION.FABRICATOR SHALL FOLLOW REQUIREMENTS FOR DEMAND-CRITICAL WELDS, PROTECTED ZONES, CONTINUITY PLATES,STIFFNERS, FILLET AND HEAVY FILLET WELDS, CPJ, BACKING BAR REMOVAL, BACK-GOUGE, ETC. APPROVED PROCESS (SMAW,GMAW, FCAW, AND SAW) MUST BE USED FOR DEMAND-CRITICAL WELDS AND SHALL BE AS SPECIFIED BELOW:a. SMAW: E70XX LOW HYDROGENb. SAW: F7XX-EXXXc. GMAW: ER70S-Xd. FCAW: E7X1-X2. ALL FILLET WELDS SHALL BE 316" MINIMUM UNLESS NOTED OTHERWISE ON DESIGN DRAWINGS.3. GRIND WELDS ONLY IN THE WAY OF FITTING ANGLES.F. FABRICATION & ERECTION WORKMANSHIP1. THE FABRICATOR SHALL SUBMIT DRAWINGS, BILL OF MATERIALS INCLUDING FIELD BOLT LISTS, AND ERECTION DRAWINGS TOTHE ENGINEER FOR REVIEW BEFORE STARTING FABRICATION. ONLY CHECKED DRAWINGS WILL BE ACCEPTED FOR REVIEW.SHOP DRAWINGS SHALL BE INTERPRETED AS REVIEW OF GENERAL METHODS AND ARRANGEMENTS ONLY AND SHALL NOTCONSTITUTE VERIFICATION OF DIMENSIONS OR QUANTITIES.2. FABRICATOR SHALL FURNISH ALL FIELD BOLTS, BOLT SCHEDULE, CLIP ANGLES, AND TEMPORARY FASTENINGS REQUIRED FORERECTION.3. THE CONTRACTOR SHALL PROVIDE TEMPORARY SUPPORT AND SAFE LIFTING SCHEMES FOR STEEL MEMBERS AS REQUIREDDURING ALL PHASES OF CONSTRUCTION.4. ALL DAMAGED MATERIAL SHALL BE REPAIRED OR REPLACED AT NO EXTRA COST TO THE OWNER AND SUBJECT TO THEAPPROVAL OF THE OWNER OR AUTHORIZED REPRESENTATIVE. G. DESIGN LOADS1. PIPE BRIDGE:a. DEAD LOADS: 50 PSF ON BOTTOM LEVEL, 75 PSF TOP LEVELb. LIVE LOADS: 75 PSFc. SNOW LOAD: REFER TO 0202 SECTION A FOR ENVIRONMENTAL LOADINGd. WIND LOAD: REFER TO 0202 SECTION A FOR ENVIRONMENTAL LOADINGe. SEISMIC: REFER TO 0202 SECTION A FOR ENVIRONMENTAL LOADING2. VAPORIZER BUILDING INTERNAL EQUIPMENTa. DEAD LOADS: ACTUAL EQUIPMENT DEAD LOADb. LIVE LOADS: ACTUAL EQUIPMENT OPERATION LOADc. ENVIRONMENTAL LOADING NOT CONSIDERED FOR INTERIOR EQUIPMENT3. EXTERIOR PIPE AND CABLE RACKSa. DEAD LOAD - PIPING: ACTUAL EQUIPMENT DEAD LOADb. DEAD LOAD - CABLE TRAY: ALLOWABLE VENDOR DEAD LOADINSPECTION AND VERIFICATION OF STEEL CONSTRUCTIONINSPECTIONREQUIRED Y/NVERIFICATION AND INSPECTION TASKFREQUENCY OF INSPECTIONREFERENCEDSTANDARDCONTINUOUSDURING TASKLISTEDPERIODICALLYDURING TASKLISTED1. MATERIAL VERIFICATION OF HIGH-STRENGTH BOLTS, NUTS, AND WASHERS:YA. IDENTIFICATION MARKINGS TO CONFORM TO ASTMSTANDARDS SPECIFIED IN THE APPROVEDCONSTRUCTION DOCUMENTS.-XAISC 360SECTION A3.3AND APPLICABLEASTM MATERIALSTANDARDSYB. MANUFACTURER'S CERTIFICATE OF COMPLIANCEREQUIRED.-X-2. INSPECTION OF HIGH-STRENGTH BOLTING:Y A. SNUG TIGHT JOINTS. - XAISC 360SECTION M2.5NB. PRETENSIONED AND SLIP-CRITICAL JOINTS USINGTURN-OF-NUT WITH MATCHMARKING, TWIST-OFF BOLT, ORDIRECT TENSION INDICATOR METHOD OF INSTALLATION.-XNC. PRETENSIONED AND SLIP-CRITICAL JOINTS USINGTURN-OF-NUT WITHOUT MATCHMARKING, OR CALIBRATEDWRENCH METHODS OF INSTALLATION.X-3. MATERIAL VERIFICATION OF STRUCTURAL STEEL AND COLD-FORMED STEEL DECK:YA. FOR STRUCTURAL STEEL, IDENTIFICATION MARINGS TOCONFORM TO AISC 360.-X-YB. FOR OTHER STEEL, IDENTIFICATION MARKINGS TOCONFORM TO ASTM STANDARDS SPECIFIED IN THEAPPROVED CONSTRUCTION DOCUMENTS.-XAPPLICABLEASTM MATERIALSTANDARDSY C. MANUFACTURER'S CERTIFIED MILL TEST REPORTS. - X -4. MATERIAL VERIFICATION OF WELD FILLER MATERIALS:YA. IDENTIFICATION MARKINGS TO CONFORM TO AWSSPECIFICATION IN THE APPROVED CONSTRUCTIONDOCUMENTS.-XAISC 360 SECTIONA3.5 ANDAPPLICABLE AWSA5 DOCUMENTSYB. MANUFACTURER'S CERTIFICATE OF COMPLIANCEREQUIRED.-X-5. INSPECTION OF WELDING:A. STRUCTURAL STEEL AND COLD FORMED STEEL DECK:N1) COMPLETE AND PARTIAL PENETRATION GROOVEWELDS.X-AWS D1.1N2) MULTIPASS FILLET WELDS.X-N3) SINGLE-PASS FILLET WELDS > 5/16".X-N4) PLUG AND SLOT WELDS.X-Y5) SINGLE-PASS FILLET WELDS ≤5/16".-XN6) FLOOR AND ROOF DECK WELDS.-XAWS D1.3B. REINFORCING STEEL:Y1) VERIFICATION OF WELDAILITY OF REINFORCING STEELOTHER THAN ASTM A706.-XAWS D1.4ACI 318SECTION 3.5.2N2) REINFORCING STEEL: RESISTING FLEXURAL AND AXIALFORCES IN INTERMEDIATE AND SPECIAL MOMENTFRAMES, AND BOUNDARY ELEMENTS OF SPECIALSTRUCTURAL WALLS OF CONCRETE AND SHEARREINFORCEMENT.X-N3) SHEAR REINFORCEMENT.X-N4) OTHER REINFORCING STEEL.-X6. INSPECTION OF STEEL FRAME JOINT DETAIL FOR COMPLIANCE:Y A. DETAILS SUCH AS BRACING AND STIFFENING.-X-Y B. MEMBER LOCATIONS.-XY C. APPLICATION OF JOINT DETAILS AT EACH CONNECTION.-XN7. SFRS (SEISMIC FORCE RESISTING SYSTEM)X--SERVICE CENTER:CAD FILE NAME:BYDRAWINGREVISIONSNO.DESCRIPTIONDATEDESIGNED BY:APPROVED BY:CHECKED BY:DRAWN BY:TYPE:LOCATION:DIVISION:CITY/COUNTY :IN SERVICE DATE:HISTORY DATEFLOC:®SIBLEY PROPANE PLANTSTEEL NOTES0203AD2_0000.dwgNORTHMENDOTA HEIGHTS/ DAKOTAFACILITYNORTHERN STATES POWER COMPANYATB07/16/2021MM07/19/2021JM07/19/2021MHM07/19/2021A ISSUED FOR PERMITCEPC 04/22/22TBD1401 Blake Street, Denver, CO 80202(303) 623-3345CAD FILE NAME:D2_0000_Sibley Phase II.dwg1. STRUCTURAL STEEL NOTES/SPECIFICATIONSA.GENERAL/STRUCTURAL DESIGN CRITERIA1. THE STRUCTURAL STEEL DESIGN SHALL CONFORM TO THE REQUIREMENTS OF THE LATEST ISSUE OF THE FOLLOWING CODES(AND SUPPLEMENTS), STANDARDS, OR SPECIFICATIONS:a. AISC STEEL CONSTRUCTION MANUAL, 14TH EDITION, INCLUDING AISC 360 SPECIFICATIONS FOR STRUCTURAL STEELBUILDINGS.b. AWS D1.1 STRUCTURAL WELDING CODE LATEST EDITION.B.STRUCTURAL STEEL FABRICATION AND INSTALLATION1. STEEL FABRICATION SHALL BE CONDUCTED ACCORDING TO AISC STEEL CONSTRUCTION MANUAL LATEST EDITION.2. ALL CONNECTIONS SHALL BE DETAILED PER STANDARDS SHOWN ON ENGINEERING DRAWINGS.C.MATERIAL GRADES1. STEEL PLATES: ASTM A362. TUBE STEEL: ASTM A500 GR. B3. WIDE FLANGE STEEL: ASTM A992 GR.504. ANGLE IRON: ASTM A36D.COATINGS1. STRUCTURAL STEEL SHALL BE SHOT BLASTED, PRIMED, AND GALVANIZED.2. ALL STEEL SHALL BE HOT DIP GALVANIZED PER ASTM A123 (3-MIL MIN.)3. IF FIELD MODIFICATIONS REQUIRE REMOVAL OF HDG, THEN UTILIZE ZRC COLD GALVANIZATION PRODUCT TO PERFORMGALVANIZATION TOUCH-UPS.E. WELDED CONNECTIONS1. SHOP CONNECTIONS SHALL BE WELDED, CONFORMING TO AWS D1.1 STRUCTURAL WELDING CODE, LATEST EDITION.FABRICATOR SHALL FOLLOW REQUIREMENTS FOR DEMAND-CRITICAL WELDS, PROTECTED ZONES, CONTINUITY PLATES,STIFFNERS, FILLET AND HEAVY FILLET WELDS, CPJ, BACKING BAR REMOVAL, BACK-GOUGE, ETC. APPROVED PROCESS (SMAW,GMAW, FCAW, AND SAW) MUST BE USED FOR DEMAND-CRITICAL WELDS AND SHALL BE AS SPECIFIED BELOW:a. SMAW: E70XX LOW HYDROGENb. SAW: F7XX-EXXXc. GMAW: ER70S-Xd. FCAW: E7X1-X2. ALL FILLET WELDS SHALL BE 316" MINIMUM UNLESS NOTED OTHERWISE ON DESIGN DRAWINGS.3. GRIND WELDS ONLY IN THE WAY OF FITTING ANGLES.F. FABRICATION & ERECTION WORKMANSHIP1. THE FABRICATOR SHALL SUBMIT DRAWINGS, BILL OF MATERIALS INCLUDING FIELD BOLT LISTS, AND ERECTION DRAWINGS TOTHE ENGINEER FOR REVIEW BEFORE STARTING FABRICATION. ONLY CHECKED DRAWINGS WILL BE ACCEPTED FOR REVIEW.SHOP DRAWINGS SHALL BE INTERPRETED AS REVIEW OF GENERAL METHODS AND ARRANGEMENTS ONLY AND SHALL NOTCONSTITUTE VERIFICATION OF DIMENSIONS OR QUANTITIES.2. FABRICATOR SHALL FURNISH ALL FIELD BOLTS, BOLT SCHEDULE, CLIP ANGLES, AND TEMPORARY FASTENINGS REQUIRED FORERECTION.3. THE CONTRACTOR SHALL PROVIDE TEMPORARY SUPPORT AND SAFE LIFTING SCHEMES FOR STEEL MEMBERS AS REQUIREDDURING ALL PHASES OF CONSTRUCTION.4. ALL DAMAGED MATERIAL SHALL BE REPAIRED OR REPLACED AT NO EXTRA COST TO THE OWNER AND SUBJECT TO THEAPPROVAL OF THE OWNER OR AUTHORIZED REPRESENTATIVE. G. DESIGN LOADS1. PIPE BRIDGE:a. DEAD LOADS: 50 PSF ON BOTTOM LEVEL, 75 PSF TOP LEVELb. LIVE LOADS: 75 PSFc. SNOW LOAD: REFER TO 0202 SECTION A FOR ENVIRONMENTAL LOADINGd. WIND LOAD: REFER TO 0202 SECTION A FOR ENVIRONMENTAL LOADINGe. SEISMIC: REFER TO 0202 SECTION A FOR ENVIRONMENTAL LOADING2. VAPORIZER BUILDING INTERNAL EQUIPMENTa. DEAD LOADS: ACTUAL EQUIPMENT DEAD LOADb. LIVE LOADS: ACTUAL EQUIPMENT OPERATION LOADc. ENVIRONMENTAL LOADING NOT CONSIDERED FOR INTERIOR EQUIPMENT3. EXTERIOR PIPE AND CABLE RACKSa. DEAD LOAD - PIPING: ACTUAL EQUIPMENT DEAD LOADb. DEAD LOAD - CABLE TRAY: ALLOWABLE VENDOR DEAD LOADINSPECTION AND VERIFICATION OF STEEL CONSTRUCTIONINSPECTIONREQUIRED Y/NVERIFICATION AND INSPECTION TASKFREQUENCY OF INSPECTIONREFERENCEDSTANDARDCONTINUOUSDURING TASKLISTEDPERIODICALLYDURING TASKLISTED1. MATERIAL VERIFICATION OF HIGH-STRENGTH BOLTS, NUTS, AND WASHERS:YA. IDENTIFICATION MARKINGS TO CONFORM TO ASTMSTANDARDS SPECIFIED IN THE APPROVEDCONSTRUCTION DOCUMENTS.-XAISC 360SECTION A3.3AND APPLICABLEASTM MATERIALSTANDARDSYB. MANUFACTURER'S CERTIFICATE OF COMPLIANCEREQUIRED.-X-2. INSPECTION OF HIGH-STRENGTH BOLTING:Y A. SNUG TIGHT JOINTS. - XAISC 360SECTION M2.5NB. PRETENSIONED AND SLIP-CRITICAL JOINTS USINGTURN-OF-NUT WITH MATCHMARKING, TWIST-OFF BOLT, ORDIRECT TENSION INDICATOR METHOD OF INSTALLATION.-XNC. PRETENSIONED AND SLIP-CRITICAL JOINTS USINGTURN-OF-NUT WITHOUT MATCHMARKING, OR CALIBRATEDWRENCH METHODS OF INSTALLATION.X-3. MATERIAL VERIFICATION OF STRUCTURAL STEEL AND COLD-FORMED STEEL DECK:YA. FOR STRUCTURAL STEEL, IDENTIFICATION MARINGS TOCONFORM TO AISC 360.-X-YB. FOR OTHER STEEL, IDENTIFICATION MARKINGS TOCONFORM TO ASTM STANDARDS SPECIFIED IN THEAPPROVED CONSTRUCTION DOCUMENTS.-XAPPLICABLEASTM MATERIALSTANDARDSY C. MANUFACTURER'S CERTIFIED MILL TEST REPORTS. - X -4. MATERIAL VERIFICATION OF WELD FILLER MATERIALS:YA. IDENTIFICATION MARKINGS TO CONFORM TO AWSSPECIFICATION IN THE APPROVED CONSTRUCTIONDOCUMENTS.-XAISC 360 SECTIONA3.5 ANDAPPLICABLE AWSA5 DOCUMENTSYB. MANUFACTURER'S CERTIFICATE OF COMPLIANCEREQUIRED.-X-5. INSPECTION OF WELDING:A. STRUCTURAL STEEL AND COLD FORMED STEEL DECK:N1) COMPLETE AND PARTIAL PENETRATION GROOVEWELDS.X-AWS D1.1N2) MULTIPASS FILLET WELDS.X-N3) SINGLE-PASS FILLET WELDS > 5/16".X-N4) PLUG AND SLOT WELDS.X-Y5) SINGLE-PASS FILLET WELDS ≤ 5/16".-XN6) FLOOR AND ROOF DECK WELDS.-XAWS D1.3B. REINFORCING STEEL:Y1) VERIFICATION OF WELDAILITY OF REINFORCING STEELOTHER THAN ASTM A706.-XAWS D1.4ACI 318SECTION 3.5.2N2) REINFORCING STEEL: RESISTING FLEXURAL AND AXIALFORCES IN INTERMEDIATE AND SPECIAL MOMENTFRAMES, AND BOUNDARY ELEMENTS OF SPECIALSTRUCTURAL WALLS OF CONCRETE AND SHEARREINFORCEMENT.X-N3) SHEAR REINFORCEMENT.X-N4) OTHER REINFORCING STEEL.-X6. INSPECTION OF STEEL FRAME JOINT DETAIL FOR COMPLIANCE:Y A. DETAILS SUCH AS BRACING AND STIFFENING.-X-Y B. MEMBER LOCATIONS.-XY C. APPLICATION OF JOINT DETAILS AT EACH CONNECTION.-XN7. SFRS (SEISMIC FORCE RESISTING SYSTEM)X--PC PACKET Pg. # 60 CIVIL / GRADING NOTESSITE:SUBSURFACE INVESTIGATION1. SITE SPECIFIC GEOTECHNICAL INVESTIGATION WASNOT PERFORMED AT THE SITE IN QUESTION. OWNERMAY CHOOSE TO OBTAIN A SITE SPECIFICGEOTECHNICAL REPORT TO SUPERSEDE THE SOILRECOMMENDATIONS/DETAILS PROVIDED WITHINTHESE PLANS. IN THE EVENT THAT A GEOTECHNICALREPORT IS OBTAINED, THE OWNER WILL PROVIDE THECONTRACTOR WITH A COPY OF THE GEOTECHNICALENGINEERING REPORT WHICH INCLUDES BORING ANDSOILS DATA. THE OWNER DOES NOT REPRESENT THATTHE BORING LOGS AND OTHER TEST DATA INDICATETHE ACTUAL CONDITIONS THAT WILL BEENCOUNTERED THROUGHOUT THE SITES. THE BORINGLOGS AND TEST DATA ONLY INDICATE THE CONDITIONSAT THE PARTICULAR LOCATIONS OF THE BORINGS ORTESTING LOCATIONS. THE CONTRACTOR SHALLASSUME FULL RESPONSIBILITY FOR ANYINTERPRETATION AND CONCLUSIONS, WHICH MAY BEMADE AS TO THE NATURE OF THE MATERIALS TO BEENCOUNTERED AND THE DIFFICULTY OF PERFORMINGTHE WORK.2. FIELD VERIFY DIMENSIONS PRIOR TO STARTINGCONSTRUCTION. BRING ANY DISCREPANCIES TO THEINSPECTOR'S ATTENTION AND RECONCILE WITH THEENGINEER PRIOR TO CONSTRUCTION.WEATHER3. UNLESS APPROVED COMPENSATORY MEASURES AREIN PLACE, NO EXCAVATION, GRADING OR OTHER WORKSHALL BE PERFORMED IN INCLEMENT WEATHERCONDITIONS WHICH PREVENT ATTAININGSATISFACTORY CONSTRUCTION AS SPECIFIED HEREIN.ENVIRONMENTAL PROTECTION:GENERAL4. THE CONTROL OF ENVIRONMENTAL POLLUTION WHICHCOULD RESULT FROM CONSTRUCTION OPERATIONSUNDER THIS CONTRACT REQUIRES CONSIDERATION OFLAND, WATER AND AIR QUALITY AT THE SITE.5. THE CONTRACTOR AND HIS SUBCONTRACTORS SHALLCOMPLY WITH ALL APPLICABLE FEDERAL, STATE ANDLOCAL LAWS AND REGULATIONS CONCERNINGENVIRONMENTAL POLLUTION CONTROL ORABATEMENT. THE CONTRACTOR SHALL MAKE SURETHAT NECESSARY PERMITS HAVE BEEN OBTAINED ANDTHAT HIS WORK IS IN COMPLIANCE WITH SUCHPERMITS CONCERNING ENVIRONMENTAL PROTECTION.6. THE OWNER AND THE CONTRACTOR SHALL ESTABLISHTHE CRITERIA FOR COMPLIANCE AND ADMINISTRATIONOF THE ENVIRONMENTAL POLLUTION CONTROLPROGRAM PRIOR TO COMMENCEMENT OF WORK.7. THE OWNER WILL NOTIFY THE CONTRACTOR INWRITING OF ANY NONCOMPLIANCE WITH THISSPECIFICATION AND THE ACTION TO BE TAKEN. THECONTRACTOR SHALL IMMEDIATELY TAKE CORRECTIVEACTION.PROTECTION OF LAND RESOURCES8. LAND RESOURCES ADJACENT TO THE PROJECTBOUNDARIES SHALL BE PRESERVED IN THEIR PRESENTCONDITION OR RESTORED TO A NATURALAPPEARANCE.9. THE CONTRACTOR SHALL NOT INJURE OR DESTROYTREES OR SHRUBS ADJACENT TO THE PROJECT SITE.CONSTRUCTION ACTIVITIES SHALL BE CONFINED TOTHE AREA SHOWN ON THE PLANS.10.TEMPORARY ROADS, EMBANKMENTS OR EXCAVATIONSSHALL BE RESTORED TO NATURAL GRADE ANDSEEDED PRIOR TO COMPLETION OF CONSTRUCTION.PROTECTION OF WATER RESOURCES11.THE CONTRACTOR SHALL NOT ADVERSELY AFFECTTHE EXISTING WATER QUALITY WITHIN OR ADJACENTTO THE PROJECT SITE. NO CONSTRUCTION WASTESOR OTHER HARMFUL MATERIALS WILL BE PERMITTEDTO ENTER THESE WATER RESOURCES.12.SURFACE DRAINAGE FROM CUTS AND FILLS SHALL BEPROTECTED BY AN EFFECTIVE EROSION ANDSEDIMENT CONTROL PLAN OR SHALL BE GRADED TOCONTROL EROSION WITHIN ACCEPTABLE LIMITS.THESE MEASURES WILL BE MAINTAINED UNTILPERMANENT DRAINAGE AND EROSION CONTROLFACILITIES ARE COMPLETED.CONTROL OF AIR POLLUTANTS13.NO FIRES SHALL BE ALLOWED TO DISPOSE OF DEBRIS.14.THE CONTRACTOR SHALL MAINTAIN THE PROJECT SITEAND ACCESS ROADS FREE FROM DUST WHICH WOULDCAUSE A HAZARD OR NUISANCE TO OTHERS.15.THE CONTRACTOR SHALL OBTAIN DUST PERMIT FROMAUTHORITY HAVING JURISDICTION AND PAY ALLASSOCIATED FEES PRIOR TO STARTING WORK.PRODUCTS:FILL16. AREAS TO BE FILLED SHALL BE CLEARED OF ORGANICOR OTHERWISE DELETERIOUS MATERIALS TO A FIRMAND UNYIELDING SURFACE. PRIOR TO PLACING FILL,THE SURFACE SHOULD BE SCARIFIED TO IMPROVECONTACT WITH THE NEW FILL. SCARIFIED DEPTHSHOULD BE INCLUDED IN THE UNCOMPACTED LIFTTHICKNESS OF THE FIRST LIFT OF PLACED FILL INCONTACT WITH THE SCARIFIED NATIVE SURFACE.17. GENERALLY, BACKFILL SHALL CONSIST OF CLEAN,INORGANIC, PRIMARILY GRANULAR SOIL FREE OFROOTS, RUBBISH, DEBRIS, ICE, FROZEN SOIL, ANDOTHER DELETERIOUS MATERIAL.18. PREVIOUSLLY EXCAVATED SOIL ON-SITE CAN BERE-USED AS ENGINEERED BACKFILL AS APPROVED BYGEOTECHNICAL ENGINEER. SPECIFICATIONS LISTEDBELOW:GEOTEXTILE19.STABILIZATION GEOSYNTHETIC SHALL BE TENCATEMIRAFI RS380I OR APPROVED EQUAL. EQUIVALENTGEOSYNTHETICS SHALL MEET STRENGTH ANDFILTRATION CHARACTERISTICS OF SPECIFIEDPRODUCTS. PROVIDE GEOSYNTHETIC ROLLS WITHSUITABLE WRAPPING FOR PROTECTION AGAINSTMOISTURE, AND EXTENDED ULTRAVIOLET EXPOSUREPRIOR TO PLACEMENT. EACH ROLL SHALL BE LABELEDTO PROVIDE PRODUCT IDENTIFICATION SUFFICIENTFOR INVENTORY AND QUALITY CONTROL PURPOSES.STORE ROLLS IN A MANNER, WHICH PROTECTS THEMFROM THE ELEMENTS IN ACCORDANCE WITHMANUFACTURER'S REQUIREMENTS. ELEVATEGEOSYNTHETICS STORED OUTDOORS AND PROTECTWITH WATERPROOF COVER.20.GEOSYNTHETICS SHALL BE INSTALLED AS INDICATEDON THE PLANS AND OUTLINED HEREIN. THEMATERIALS SHALL BE INSTALLED IN STRICTACCORDANCE WITH THE MANUFACTURER'SINSTRUCTIONS INCLUDING, BUT NOT LIMITED TO,SPLICE LENGTHS/LAP WIDTHS, TENSIONING, ANDORIENTATION. THE GEOSYNTHETICS SHALL BEINSTALLED SO AS TO MINIMIZE CUTTING ANDWASTAGE. CARE SHALL BE TAKEN NOT TO RIP THEGEOSYNTHETIC MATERIALS. TEARS SHALL BECOVERED WITH PIECES OF GEOSYNTHETIC MATERIALWITH AT LEAST 12 INCHES OF OVERLAP OR PERMANUFACTURER'S SPECIFIED INSTRUCTIONS. THEGEOSYNTHETIC MATERIALS SHALL NOT REMAINEXPOSED LONGER THAN 24 HOURS, OR AS OTHERWISESPECIFIED IN THE MANUFACTURER'S WRITTENINSTRUCTIONS.PROOF-ROLLING21.PROOF-ROLLING SHALL BE PERFORMED AT AREAS OFPROPOSED FILL PLACEMENT, PROPOSED STRUCTUREFOOTPRINTS, PROPOSED ACCESS OR SERVICE ROADSSUBJECT TO VEHICLE LOADING, AND SLAB SUBGRADESFOR THE PROJECT.22.PRIOR TO PLACEMENT OF FILL, SUBGRADE SURFACESSHALL BE CLEANED OF DEBRIS, ORGANIC MATTER,MUD, LOOSE SOIL AND OTHER UNSUITABLE MATERIAL.AFTER THE AREAS OF THE SITE HAVE BEEN STRIPPEDAND UNSUITABLE MATERIALS HAVE BEEN REMOVED,AT-GRADE AREAS, AND AREAS THAT ARE TO RECEIVEFILL SHALL BE PROOF-ROLLED WITH A LOADED DUMPTRUCK OR SIMILAR PNEUMATIC-TIRED VEHICLE WITH AMINIMUM LOADED WEIGHT OF 25 TONS.PROOF-ROLLING CONSISTS OF APPLYING REPEATEDPASSES TO THE SUBGRADE WITH THIS EQUIPMENT.SUBGRADES IN AREAS OF CUT SHOULD BE SIMILARLYPROOF-ROLLED SUBSEQUENT TO EXCAVATION. THEPROOF-ROLLING OPERATION SHALL BE PERFORMEDUNDER THE OBSERVATION OF THE OWNER'SDESIGNATED REPRESENTATIVE. ANY AREAS WHICHDEFLECT, RUT, OR PUMP UNDER THE PROOF-ROLLING,AND FAIL TO BE REMEDIED WITH SUCCESSIVE PASSESAS DETERMINED BY THE OWNER, SHALL BE STABILIZEDOR UNDERCUT TO MORE STABLE SOILS DEPENDING ONTHE SITE CONDITIONS AT THE TIME OFCONSTRUCTION. ALL MATERIAL UNDERCUT SHALL BEREPLACED AND COMPACTED WITH AN APPROVED FILL.SUBGRADE STABILIZATION23.WET AND UNSTABLE EXPOSED SUBGRADE SOILS, IFENCOUNTERED, SHALL BE STABILIZED IN LIEU OFUNDERCUTTING AND SOIL REPLACEMENT WHENDIRECTED BY THE ENGINEER. STABILIZE THE WET ANDUNSTABLE SUBGRADE WITH A STONE STABILIZATIONBLANKET CONSISTING OF STRUCTURAL FILL ASSPECIFIED BY THE GEOTECHNICAL REPORT PLACEDOVER A STABILIZATION GEOSYNTHETIC AS SPECIFIED.THE NECESSARY THICKNESS OF THE STONESTABILIZATION BLANKET MUST BE DETERMINED IN THEFIELD AT THE TIME OF CONSTRUCTION BY THEENGINEER, BUT TYPICAL THICKNESSES RANGE FROM12 TO 24 INCHES. THE STONE SHALL BE DUMPED IN ASTABLE AREA AND THEN PUSHED OUT OVER THEGEOGRID WITH A LIGHT BULLDOZER. ALTERNATIVELY,THE CONTRACTOR SHALL CONTACT THE ENGINEERFOR LIME OR CEMENT TREATMENT REQUIREMENTS OFSUBGRADES FOR STABILIZATION.PREPARATION24.AFTER PROOF-ROLLING AND BEFORE PLACING FILLMATERIAL, THE SUBGRADE SOIL SURFACE SHALL BESCARIFIED TO A MINIMUM DEPTH OF 8 INCHES, WETTEDOR DRIED TO PRODUCE 2-4% HIGHER MOISTURECONTENT THAN OPTIMUM MOISTURE CONTENT, ANDRECOMPACTED TO AT LEAST 90% MAXIMUM DRYDENSITY.SLOPED SURFACES25.PLACEMENT OF FILL AGAINST SLOPED SURFACESSTEEPER THAN 3 HORIZONTAL-TO-1 VERTICAL SHALLBE STEPPED OR BENCHED, SCARIFIED ANDCOMPACTED AS DESCRIBED ABOVE.PLACEMENT26.FILL SHALL NOT BE PLACED UNTIL THE EXCAVATIONAND SUBGRADE PREPARATION (OR PORTIONSTHEREOF) HAVE BEEN COMPLETED, INSPECTED, ANDAPPROVED BY THE ENGINEER. FILL SHALL BE PLACEDON A SCARIFIED AND RECOMPACTED SURFACE INHORIZONTAL LIFTS NOT EXCEEDING THE LIFTTHICKNESS OF INDICATED IN THE TABLE BELOW ANDTHEN COMPACTED TO RELATIVE COMPACTION ASNOTED IN THE TABLE TO BRING THE AREA UP TOGRADE ELEVATION. MATERIALS PLACED BY DUMPINGIN PILES OR WINDROWS SHALL BE SPREAD UNIFORMLYBEFORE BEING COMPACTED. NO MATERIAL SHALL BEPLACED ON SURFACES THAT ARE MUDDY, FROZEN ORCONTAIN FROST.27.MAINTAIN POSITIVE DRAINAGE ACROSS THE SITETHROUGHOUT THE PROJECT.CONTINUED ON NEXT SHEETGRADATION OF FILLSIEVE% PASSING3 INCH1003/4 INCH70-100No. 20020-50PLASTICITYLIQUID LIMIT (LL) PLASTICITY INDEX (PI)<35<12OTHER REQUIREMENTSORGANIC CONTENTNO ORGANICSEXPANSIVE POTENTIAL (EI)<20SOLUBLE SULFATES<2,000 PPMSOLUBLE CHLORIDE<300 PPMRESISTIVITY>2,000 *cmSERVICE CENTER:CAD FILE NAME:BYDRAWINGREVISIONSNO.DESCRIPTIONDATEDESIGNED BY:APPROVED BY:CHECKED BY:DRAWN BY:TYPE:LOCATION:DIVISION:CITY/COUNTY :IN SERVICE DATE:HISTORY DATEFLOC:®SIBLEY PROPANE PLANTGENERAL CIVIL/STRUCTURAL NOTES0204BD2_0000.dwgNORTHMENDOTA HEIGHTS/ DAKOTAFACILITYNORTHERN STATES POWER COMPANYATB07/16/2021MM07/19/2021JM07/19/2021MHM07/19/2021A ISSUED FOR PERMITCEPC 04/22/22B ISSUED FOR PERMITCEPC04/29/22TBD1401 Blake Street, Denver, CO 80202(303) 623-3345PC PACKET Pg. # 61 COMPACTION CRITERIA TABLEMAXIMUM LIFTTHICKNESS6 INCHESCOMPACTION90% OF M.D.D. PER ASTM D1557 (GRANULAR)*95% OF M.D.D. PER ASTM D698 (COHESIVE)*MOISTURE CONTENTSLIGHTLY ABOVE OPTIMUM MOISTURECONTENTCIVIL / GRADING NOTES (CONTINUED)COMPACT28. COMPACTION SHALL BE PERFORMED BY ROLLING WITHAPPROVED TAMPING ROLLERS, PNEUMATIC-TIRED ROLLERS, THREE-WHEEL POWERROLLERS OR OTHER APPROVED EQUIPMENT SUITABLE FOR THE SOIL AND COMPACTION SPECIFIED.MATERIAL SHALL BE MOISTENED OR AERATED ASNECESSARY TO PROVIDE THE MOISTURE CONTENT THATWILL READILY FACILITATE OBTAINING THE SPECIFIEDCOMPACTION WITH THE EQUIPMENT USED. EACH LAYERSHALL BE COMPACTED TO NOT LESS THAN THEPERCENTAGE OF MAXIMUM DENSITY AND SHOULD BEMOISTURE CONDITIONED AS NOTED BELOW*INCREASE RELATIVE COMPACTION TO 95% (GRANULAR) AND98% (COHESIVE) RESPECTIVELY IN AREAS SCHEDULEDFOR REPETITIVE WHEEL LOADING OF FOUNDATIONS.29. ELEVATIONS AND CONTOUR LINES SHOWN ON THEGRADING PLANS ARE THE FINAL GRADE ELEVATIONSINCLUDING GRAVEL SURFACING, WHERE APPLICABLE.30. THE CONTRACTOR SHALL NOT CHANGE OR DEVIATEFROM THE PLANS WITHOUT FIRST OBTAINING WRITTENAPPROVAL FROM THE OWNER AND ENGINEER.31. THE CONTRACTOR SHALL BE RESPONSIBLE FOR JOB SITESAFETY OF HIS OWN PERSONNEL, ALL VISITORS TO THESITE AND THE GENERAL PUBLIC.32. THE CONTRACTOR SHALL BE RESPONSIBLE TO REPAIRALL EXISTING DISTURBED AREAS, FENCES, WALLS,SHEDS OR OTHER STRUCTURES DAMAGED DURINGCONSTRUCTION ACTIVITIES TO EQUAL OR BETTERCONDITI0NS.33. CONTRACTOR SHALL MAINTAIN A SET OF AS-BUILTDRAWINGS WITH ALL CHANGES IDENTIFIED.34. ALL PERIMETER EROSION CONTROL MEASURES SHALL BEINSTALLED AND FUNCTIONAL PRIOR TO ANY OTHEREARTH DISTURBING ACTIVITY. ALL OTHER STRUCTURALEROSION CONTROL MEASURES SHALL BE IMPLEMENTEDAS SOON AS THE CONSTRUCTION ACTIVITIES, AROUNDWHICH THEY ARE BASED, COMMENCE.35. THERE SHALL BE NO EARTH DISTURBING ACTIVITYOUTSIDE THE LIMITS DESIGNATED ON THESE PLANS.36. CONTRACTOR MUST CONTACT THE APPLICABLEBELOW-GROUND UTILITY LOCATOR AT LEAST 3 BUSINESSDAYS PRIOR TO EXCAVATION AS REQUIRED BY LAW.37. ALL AREAS REQUIRING NEW CUT AND FILL OPERATIONSSHALL BE GRUBBED TO REMOVE ANY GRASS, ROOTS,ORGANIC MATERIAL, EXISTING FILL, OR OTHER DEBRIS.STRIPPED MATERIAL SHALL BE DISPOSED OF OUTSIDETHE SITE AT AN APPROPRIATE DISPOSAL FACILITY.38. THE FINISHED GRADE SURFACE AND DRAINAGE PATTERNSHALL ROUGHLY MAINTAIN THE EXISTING NATURALGRADE EXCEPT WHERE INDICATED ON THE GRADINGPLAN39. CONTRACTOR RESPONSIBLE FOR REMOVAL OF EXISTINGFENCE AND INSTALLING NEW FENCE FOR GRADINGOPERATIONS AS WELL AS SECURITY FENCING FOR WELLEQUIPMENT OPERATION.40. HORIZONTAL CLEARANCE FROM EXISTING WELLEQUIPMENT AND PIPING PER OWNER GUIDELINES.41. VERTICAL CLEARANCE FROM EXISTING WELL EQUIPMENTAND PIPING PER OWNER GUIDELINES.TEMPORARY BYPASS SKID NOTES:1. SKID FRAMING TO BE OF SOLID WELDED CONSTRUCTION.1/4" MIN CONTINUOUS FILLET WELDS. COPE ALLFRAMING MEMBERS INTO ONE ANOTHER.2. FABRICATOR SHALL BE RESPONSIBLE FOR ACCURATEPLACEMENT OF MEMBERS FOR SUPPORT ANDINSTALLATION OF EQUIPMENT.3. FABRICATOR TO CONFIRM ALL BOLT HOLE LOCATIONS.4. EQUIPMENT TO BE BOLTED OR WELDED INTO POSITIONAS REQUIRED. CONFIRM ALL LOCATIONS WITHMECHANICAL AND ELECTRICAL DRAWINGS.5. ALL STEEL AND FABRICATION/ERECTION SHALLCONFORM TO:A. AISC STEEL CONSTRUCTION MANUAL- 14TH EDITIONB. AISC CODE OF STANDARD PRACTICE FOR STEELBUILDINGS AND BRIDGES 303-16C. AWS D1 WELDING CODE6. MATERIALS SHALL CONFORM TO THE FOLLOWINGGRADES OF AISC STEEL CONSTRUCTION MANUAL:A. W SECTIONS: ASTM A992, Fy= 50 ksiB. RECTANGULAR HSS: ASTM A500 Gr. B, Fy= 36 ksiC. PIPES: ASTM A53 Gr. B, Fy= 35 ksiD. ALL OTHER SHAPES AND PLATES: ASTM A36, Fy= 36 ksi7. BOLTS SHALL CONFORM TO ASTM F3125- Gr. A3258. COMMERCIAL BLAST STEEL TO SSPC-SP6 AND HOT DIPGALVANIZE PER ASTM A123. ELSE COAT USING NOTES10-11.9. PRIME WITH ONE COAT OF RUSTEX PRIMER/ AMERONAMERLOCK 400AL PRIMER OR CARBOLINE CARBOMASTIC15 PRIMER.10. PAINT WITH TOP COAT OF AMERON PSX 700 OREQUIVALENT. COLOR BY OWNER.11. FIELD VERIFY ALL DIMENSIONS PRIOR TOCONSTRUCTION.12. CLEVIS PINS USED FOR LIFTING MUST BE 1 1/2" DIA. MIN.13. HSS MEMBERS ARE FOR FORKLIFT USE ONLY.14. SKID WEIGHT: SKID STEEL= 5,500 LB PIPING EQUIP=44,500 LB TOTAL= 50,000 LB APPROX.15. CENTER OF GRAVITY IS AT APPROXIMATELY X=21.143 FT,Y=2.583 FT, Z=2.701 FT BASED ON DATUM SHOWNON PLAN VIEW.16. FABRICATOR TO ROUND OUT SHARP CORNERS OF WSHAPES AS REQUIRED TO MINIMIZE INJURY POTENTIAL.17. REMOVE SHARP EDGES OF LIFTING LUG WITH MINIMALMATERIAL REMOVAL.SERVICE CENTER:CAD FILE NAME:BYDRAWINGREVISIONSNO.DESCRIPTIONDATEDESIGNED BY:APPROVED BY:CHECKED BY:DRAWN BY:TYPE:LOCATION:DIVISION:CITY/COUNTY :IN SERVICE DATE:HISTORY DATEFLOC:®SIBLEY PROPANE PLANTGENERAL CIVIL/STRUCTURAL NOTES0205BD2_0000.dwgNORTHMENDOTA HEIGHTS/ DAKOTAFACILITYNORTHERN STATES POWER COMPANYATB07/16/2021MM07/19/2021JM07/19/2021MHM07/19/2021A ISSUED FOR PERMITCEPC 04/22/22B ISSUED FOR PERMITCEPC04/29/22TBD1401 Blake Street, Denver, CO 80202(303) 623-3345PC PACKET Pg. # 62 PC PACKET Pg. # 63 PC PACKET Pg. # 64 PC PACKET Pg. # 65 PC PACKET Pg. # 66 PC PACKET Pg. # 67 PC PACKET Pg. # 68 PC PACKET Pg. # 69 PC PACKET Pg. # 70 PC PACKET Pg. # 71 PC PACKET Pg. # 72 PC PACKET Pg. # 73 PC PACKET Pg. # 74 PC PACKET Pg. # 75 1.0 GENERAL CONSTRUCTION ACTIVITY INFORMATION:THIS STORMWATER POLLUTION PREVENTION PLAN (SWPPP) HAS BEEN PREPARED IN COMPLIANCE WITH THE MINNESOTA GENERALSTORMWATER PERMIT FOR CONSTRUCTION ACTIVITY NO. MNR100001 (GENERAL PERMIT), AS REQUIRED BY THE MINNESOTA POLLUTIONCONTROL AGENCY (MPCA) UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM/STATE DISPOSAL SYSTEM (NPDES/SDS)PROGRAM.THE PROJECT IS LOCATED AT 800 SIBLEY MEMORIAL HIGHWAY IN THE CITY OF MENDOTA HEIGHTS, DAKOTA COUNTY, MINNESOTA. PROPOSEDCONSTRUCTION ACTIVITIES WILL TAKE PLACE WITHIN SECTION 23 TOWNSHIP 28 NORTH RANGE 23 WEST. THE APPROXIMATE CENTROID OF THEPROJECT HAS A LATITUDE OF 44.906177 AND A LONGITUDE OF -93.130502.THIS PROJECT INVOLVES THE IMPROVEMENT OF EXISTING STORMWATER ROUTING, STORAGE AND DISCHARGE SYSTEMS ON SITE.CONSTRUCTION WILL CONSIST OF SITE GRADING, DRAINAGE SYSTEM IMPROVEMENTS, SURFACING EXPANSION AND REPAIR, ANDCONSTRUCTION OF OUTLET AND PRETREATMENT STRUCTURES. THE PROJECT IS NOT A PART OF A LARGER COMMON PLAN OFDEVELOPMENT. THE PROJECT AS PROPOSED HAS A TOTAL DISTURBANCE AREA OF 5.38 ACRES. EROSION PREVENTION AND SEDIMENTCONTROL MEASURES ARE REQUIRED TO MINIMIZE SEDIMENT FROM BEING TRANSPORTED INTO THE MISSISSIPPI RIVER, REFER TO PROJECTDRAWINGS FOR FURTHER DETAILS. (CSW PERMIT PART III.A.1)1.1 PROJECT SIZE AND CUMULATIVE IMPERVIOUS SURFACE:xTHE ANTICIPATED AREA OF DISTURBANCE IS APPROXIMATELY 5.38 ACRES.xTHE TOTAL AREA OF PRE-CONSTRUCTION IMPERVIOUS AREA IS APPROXIMATELY 3.93 ACRES.xTHE TOTAL AREA OF POST-CONSTRUCTION IMPERVIOUS AREA IS APPROXIMATELY 4.53 ACRES.xTHE TOTAL NEW IMPERVIOUS AREA IS APPROXIMATELY 0.60 ACRES.1.2 DATES OF CONSTRUCTION:xANTICIPATED START DATE: JUNE 2022ANTICIPATED END DATE: NOVEMBER 20221.3 CONTACT INFORMATION:OWNER: XCEL ENERGYMAILING ADDRESS: 10326 S. ROBERT TRAIL, INVER GROVE HEIGHTS, MN 55076CONTACT PERSON: RICHARD HYDETITLE: SENIOR OPERATIONS MANAGERPHONE NUMBER: 651-265-7055EMAIL ADDRESS: RICHARD.R.HYDE@XCELENERGY.COMOPERATOR / GENERAL CONTRACTOR (WILL OVERSEE IMPLEMENTATION OF THE SWPPP): ___________________________________________MAILING ADDRESS: _________________________________________CONTACT PERSON: _________________________________________ TITLE: _______________________________________________________PHONE NUMBER: ___________________________________________ EMAIL ADDRESS: ______________________________________________PARTY RESPONSIBLE FOR LONG-TERM OPERATION AND MAINTENANCE OF THE PERMANENT STORMWATER MANAGEMENT SYSTEM:XCEL ENERGYMAILING ADDRESS: 10326 S. ROBERT TRAIL, INVER GROVE HEIGHTS, MN 55076CONTACT PERSON: RICHARD HYDETITLE: SENIOR OPERATIONS MANAGER PHONE NUMBER: 651-265-7055EMAIL ADDRESS: RICHARD.R.HYDE@XCELENERGY.COM2.0 RECEIVING WATERS:WATERS WITHIN ONE MILE (NEAREST STRAIGHT LINE DISTANCE) THAT ARE LIKELY TO RECEIVE STORMWATER RUNOFF FROM THE PROJECTSITE (CSW PERMIT ITEM 5.10) INCLUDE:SPECIAL IMPAIRED PUBLIC WATER WITH WORKNAME OF WATER BODYTYPE (1)WATER BODY ID (2)WATER? (3)WATER? (3)IN WATER RESTRICTIONS?UNNAMED CREEK CREEK 07010206-542 NO NO NOMISSISSIPPI RIVER RIVER 07010206-505 NO YESNO(1) TYPE EXAMPLES: DITCH, POND, WETLAND, CALCAREOUS FEN, LAKE, STREAM, RIVER(2) WATER BODY IDENTIFICATION (ID) MIGHT NOT BE AVAILABLE FOR ALL WATER BODIES. USE THE SPECIAL AND IMPAIRED WATERS SEARCH TOOL AT: HTTPS://WWW.PCA.STATE.MN.US/WATER/STORMWATER-SPECIAL-AND-IMPAIRED-WATERS-SEARCH(3) REFER TO CSW PERMIT SECTION 23. IMPAIRED WATER FOR THE FOLLOWING POLLUTANT(S) OR STRESSOR(S): PHOSPHORUS(NUTRIENT EUTROPHICATION BIOLOGICAL INDICATORS), TURBIDITY, TOTAL SUSPENDED SOLIDS (TSS), DISSOLVED OXYGEN, OR AQUATICBIOTA (FISH BIOASSESSMENT, AQUATIC PLANT BIOASSESSMENT, AND AQUATIC MACROINVERTEBRATE BIOASSESSMENT)2.1 SPECIAL AND IMPAIRED WATERS:THE MPCA'S SPECIAL AND IMPAIRED WATERS SEARCH TOOL WAS USED TO LOCATE SPECIAL AND IMPAIRED WATERS WITHIN ONE MILE (AERIALRADIUS MEASUREMENT) OF THE PROJECT SITE. THIS SEGMENT OF THE MISSISSIPPI RIVER HAS EPA-APPROVED IMPAIRMENTS FOR FECALCOLIFORM, MERCURY IN FISH TISSUE, MERCURY IN WATER COLUMN, NUTRIENTS, PCB IN FISH TISSUE, TOTAL SUSPENDED SOLIDS, ANDPERFLUOROOCTANE SULFUNATE (PFOs) IN FISH TISSUE. THESE IMPAIRMENTS ARE CONSIDERED CONSTRUCTION RELATED AND DO REQUIREADDITIONAL BEST MANAGEMENT PRACTICES (BMPS) OR PLAN REVIEW FOR COMPLIANCE WITH THE GENERAL PERMIT. (CSW PERMIT ITEM 2.7AND SECTION 23)ADDITIONAL BMPS OR OTHER SPECIFIC CONSTRUCTION RELATED IMPLEMENTATION ACTIVITIES IDENTIFIED IN AN APPROVED TOTAL MAXIMUMDAILY LOAD (TMDL) INCLUDE NEED TO UPDATE BASED ON TMDL - MIGHT INCLUDE THINGS LIKE IMMEDIATE STABILIZATION OF EXPOSED SOILAREAS. (CSW PERMIT ITEM 5.19)2.2 PUBLIC WATERS WITH WORK IN WATER RESTRICTIONS:THIS PROJECT DOES NOT INCLUDE WORK IN PUBLIC WATERS. (CSW PERMIT ITEM 5.11)2.3 WETLAND IMPACTS:THIS PROJECT DOES NOT INCLUDE WETLAND IMPACTS. (CSW PERMIT ITEMS 2.4 AND 2.10, AND SECTION 22)2.4 ENVIRONMENTAL REVIEW AND OTHER REQUIRED REVIEWS:STORMWATER MITIGATION MEASURES ARE NOT REQUIRED AS A RESULT OF AN ENVIRONMENTAL REVIEW (E.G., EAW OR EIS), ENDANGERED ORTHREATENED SPECIES REVIEW, ARCHEOLOGICAL SITE REVIEW, OR OTHER LOCAL, STATE, OR FEDERAL REVIEW CONDUCTED FOR THEPROJECT. (CSW PERMIT ITEMS 2.8, 2.9, AND 5.16)2.5 KARST AREAS OR DRINKING WATER SUPPLY MANAGEMENT AREAS:THE PRESENCE OF KARST IN THE VICINITY OF THE SITE RESULTS IN THE PROHIBITION OF INFILTRATION FEATURES FOR STORMWATERMANAGEMENT IN ORDER TO PROTECT GROUNDWATER STANDARDS. (CSW PERMIT ITEMS 16.19, 16.20, AND 18.10)3.0 PROJECT PLANS AND SPECIFICATIONS:REQUIRED FEATURESHEET NUMBERxPROJECT LOCATION AND CONSTRUCTION LIMITS4152xEXISTING AND FINAL GRADES, INCLUDING DRAINAGE AREA BOUNDARIES, DIRECTIONS OF FLOW AND ALL DISCHARGE POINTS WHERE STORMWATER IS LEAVING THE SITE ORENTERING A SURFACE WATERxSOIL TYPES AT THE SITE4151xLOCATIONS OF IMPERVIOUS SURFACES4152xLOCATIONS OF AREAS NOT BE BE DISTURBED (E.G., BUFFER ZONES, WETLANDS, ETC.) 4152xLOCATIONS OF AREAS OF STEEP SLOPES4152xLOCATIONS OF AREAS WHERE CONSTRUCTION WILL BE PHASED TO MINIMIZE DURATION OF EXPOSED SOILS N/AxPORTIONS OF THE SITE THAT DRAIN TO A PUBLIC WATER WITH DNR WORK IN WATER RESTRICTIONS FOR FISH SPAWNING TIMEFRAMES 4152xLOCATIONS OF ALL TEMPORARY AND PERMANENT EROSION AND SEDIMENT CONTROL BMPS AS REQUIRED IN PERMIT SECTIONS 8 THROUGH 10 AND 14 THROUGH 19 4152xBUFFER ZONES AS REQUIRED IN PERMIT ITEMS 9.17 AND 23.11N/AxLOCATIONS OF POTENTIAL POLLUTION-GENERATING ACTIVITIES IDENTIFIED IN PERMIT SECTION 12 4152xSTANDARD DETAILS FOR EROSION AND SEDIMENT CONTROL BMPS TO BE INSTALLED AT THE SITE 41534.0 BEST MANAGEMENT PRACTICES (BMPS):4.1 EROSION PREVENTION PRACTICES:1. BEFORE LAND DISTURBING ACTIVITIES BEGIN, THE LIMITS OF THE AREAS TO BE DISTURBED DURING CONSTRUCTIONWILL BE DELINEATED WITH FLAGS, STAKES, SIGNS, SILT FENCE, ETC.2. TEMPORARY STABILIZATION OF SOILS AND SOIL STOCKPILES: (CSW PERMIT ITEMS 8.4, 8.5, AND 23.9)a. AREAS OF EXPOSED SOIL WILL BE STABILIZED WITH EROSION CONTROL BLANKET OR EQUIVALENT MEASURES.b. IF PRESENT, SOIL STOCKPILES WILL BE STABILIZED WITH FAST GROWING COVER CORP, MULCH SUCH AS STRAWMULCH OR EQUIVALENT MEASURES.c. TEMPORARY STOCKPILES WITHOUT SIGNIFICANT SILT, CLAY, OR ORGANIC COMPONENTS (E.G., CLEANAGGREGATE STOCKPILES, DEMOLITION CONCRETE STOCKPILES, SAND STOCKPILES) AND THE CONSTRUCTEDBASE COMPONENTS OF ROADS, PARKING LOTS, AND SIMILAR SURFACES ARE EXEMPT FROM THESESTABILIZATION REQUIREMENTS.2. STABILIZATION OF DITCH AND SWALE WETTED PERIMETERS: (CSW PERMIT ITEMS 8.6 THROUGH 8.8)a. IF SOILS WITHIN EXISTING STORMWATER DITCHES OR SWALES ARE DISTURBED, THEY WILL BE STABILIZED WITHCHANNEL EROSION CONTROL BLANKET, RIPRAP, TURF REINFORCEMENT MAT OR EQUIVALENT MEASURES.b. MULCH, HYDROMULCH, TACKIFIER, POLYACRYLAMIDE, OR SIMILAR EROSION PREVENTION PRACTICES WILL NOTBE USED TO STABILIZE ANY PART OF AN EXISTING STORMWATER DITCH OR SWALE WITH A CONTINUOUS SLOPEOF GREATER THAN 2 PERCENT.c. THE LAST 200 LINEAL FEET OF LENGTH OF THE NORMAL WETTED PERIMETER OF ANY TEMPORARY ORPERMANENT DITCH OR SWALE THAT DRAINS WATER FROM ANY PORTION OF THE CONSTRUCTION SITE, ORDIVERTS WATER AROUND THE SITE, WITHIN 200 LINEAL FEET FROM THE PROPERTY EDGE, OR FROM THE POINTOF DISCHARGE INTO ANY SURFACE WATER WILL BE STABILIZED WITHIN 24 HOURS AFTER CONNECTING TO ASURFACE WATER OR PROPERTY EDGE.d. STABILIZATION OF THE REMAINING PORTIONS OF ANY TEMPORARY OR PERMANENT DITCHES OR SWALES WILLBE COMPLETED WITHIN 14 CALENDAR DAYS AFTER CONNECTING TO A SURFACE WATER OR PROPERTY EDGEAND CONSTRUCTION IN THAT PORTION OF THE DITCH HAS TEMPORARILY OR PERMANENTLY CEASED.3. ENERGY DISSIPATION AT PIPE OUTLETS: ENERGY DISSIPATION AT PIPE OUTLETS WILL BE PROVIDED WITH ONE ORMORE OF THE FOLLOW METHODS: RIP RAP, SPLASH PADS, GABIONS, OR EQUIVALENT MEASURES. (CSW PERMIT ITEM8.9)4. EROSION PREVENTION IMPLEMENTATION TIMELINES: (CSW PERMIT ITEMS 5.4, 8.4 THROUGH 8.6, AND 23.9)a. SINCE THE SITE DRAINS TO A DISCHARGE POINT THAT IS WITHIN ONE MILE (AERIAL RADIUS MEASUREMENT) OF ASPECIAL OR IMPAIRED WATER (SEE SECTION 2.0), STABILIZATION OF EXPOSED SOIL AREAS (INCLUDINGSTOCKPILES) WILL BE INITIATED IMMEDIATELY TO LIMIT SOIL EROSION WHENEVER ANY CONSTRUCTIONACTIVITY HAS PERMANENTLY OR TEMPORARILY CEASED ON ANY PORTION OF THE SITE AND WILL NOT RESUMEFOR A PERIOD EXCEEDING 7 CALENDAR DAYS.b. THE FOLLOWING ACTIVITIES CAN BE TAKEN TO INITIATE STABILIZATION: PREPPING THE SOIL FOR VEGETATIVEOR NON-VEGETATIVE STABILIZATION, APPLYING MULCH OR OTHER NON-VEGETATIVE PRODUCT TO THEEXPOSED SOIL AREA, OR SEEDING OR PLANTING THE EXPOSED AREA.5. ADDITIONAL EROSION PREVENTION MEASURES: THE FOLLOWING ADDITIONAL EROSION PREVENTION METHODS WILLBE IMPLEMENTED AT THE SITE DURING CONSTRUCTION: (CSW PERMIT ITEMS 8.2, 8.3, AND 8.10)a. CONSTRUCTION PHASING WILL BE UTILIZED TO MINIMIZE THE AREA OF SOIL EXPOSED AT ANY ONE TIME.b. SOIL DISTURBANCE WILL BE MINIMIZED WHEREVER POSSIBLE TO AID IN EROSION PREVENTION.c. EXISTING VEGETATION WILL BE PRESERVED WHEREVER POSSIBLE TO LIMIT EXPOSED SOIL AND THUS WILLSERVE AS NATURAL VEGETATIVE BUFFERS.d. EXPOSED SOIL ON STEEP SLOPES (≤3H:1V) WILL BE STABILIZED USING EROSION CONTROL BLANKETS ANDSEEDING.e. HORIZONTAL SLOPE GRADING WILL BE UTILIZED TO MINIMIZE EROSION POTENTIAL.f. TERRACING WILL BE USED TO MINIMIZED EROSION POTENTIAL.4.2 SEDIMENT CONTROL PRACTICES:1. DOWNGRADIENT PERIMETER CONTROLS: (CSW PERMIT ITEMS 9.2 THROUGH 9.6)a. SEDIMENT CONTROL PRACTICES WILL BE ESTABLISHED ON ALL DOWNGRADIENT PERIMETERS AND LOCATEDUPGRADIENT OF ANY BUFFER ZONES. PERIMETER SEDIMENT CONTROLS WILL INCLUDE: SILT FENCE, SEDIMENTCONTROL LOGS / BIOROLLS (FILLED WITH COMPOST, WOOD CHIPS, ROCK, ETC.), VEGETATIVE BUFFERS (RETAINEXISTING VEGETATION WHERE POSSIBLE) OR EQUIVALENT MEASURES.b. PERIMETER SEDIMENT CONTROL PRACTICES MUST BE INSTALLED BEFORE ANY UPGRADIENT LAND-DISTURBINGACTIVITIES BEGIN AND REMAIN IN PLACE UNTIL PERMANENT COVER HAS BEEN ESTABLISHED.c. IF SEDIMENT CONTROL PRACTICES HAVE BEEN ADJUSTED OR REMOVED TO ACCOMMODATE SHORT-TERMACTIVITIES (SUCH AS CLEARING, GRUBBING, OR PASSAGE OF VEHICLES), THE CONTROLS MUST BERE-INSTALLED IMMEDIATELY AFTER THE SHORT-TERM ACTIVITY HAS BEEN COMPLETED. SEDIMENT CONTROLPRACTICES MUST BE RE-INSTALLED BEFORE THE NEXT PRECIPITATION EVENT, EVEN IF THE SHORT-TERMACTIVITY IS NOT COMPLETE.d. IF THE DOWNGRADIENT SEDIMENT CONTROLS ARE OVERLOADED (BASED ON FREQUENT FAILURE OR EXCESSIVEMAINTENANCE REQUIREMENT), INSTALL ADDITIONAL UPGRADIENT SEDIMENT CONTROL PRACTICES ORREDUNDANT BMPS TO ELIMINATE THE OVERLOADING AND AMEND THE SWPPP TO IDENTIFY THESE ADDITIONALPRACTICES.2. SOIL STOCKPILE PERIMETER CONTROLS: TEMPORARY SOIL STOCKPILES WILL BE SURROUNDED BY: SEDIMENTCONTROL LOGS / BIOROLLS (FILLED WITH COMPOST, WOOD CHIPS, ROCK, ETC.) OR EQUIVALENT MEASURES, ANDSHALL NOT BE PLACED IN ANY NATURAL BUFFERS OR SURFACE WATERS.(CSW PERMIT ITEMS 9.9 AND 9.10)3. STORM DRAIN INLET PROTECTION: (CSW PERMIT ITEMS 9.7 AND 9.8)a. INLET PROTECTION BMPS WILL BE INSTALLED AROUND ALL STORM DRAIN INLETS DOWNGRADIENT OFCONSTRUCTION ACTIVITIES.b. STORM DRAIN INLETS WILL BE PROTECTED UNTIL ALL SOURCES WITH POTENTIAL FOR DISCHARGING TO THEINLET HAVE BEEN STABILIZED.c. INLET PROTECTION BMPS WILL BE: SEDIMENT CONTROL LOG, FILTER SACK, ROCK WITH FILTER FABRIC, FILTERFENCE BOX OR EQUIVALENT MEASURES.4. VEHICLE TRACKING BMPS: (CSW PERMIT ITEMS 9.11 AND 9.12)a. VEHICLE TRACKING BMPS WILL BE INSTALLED TO MINIMIZE THE TRACKING OUT OF SEDIMENT FROM THECONSTRUCTION AREA AND WILL INCLUDE: ROCK PADS OR AN EQUIVALENT SYSTEM.b. IF SUCH VEHICLE TRACKING BMPS ARE NOT ADEQUATE TO PREVENT SEDIMENT FROM BEING TRACKED ONTOTHE PAVED ROAD, STREET SWEEPING WILL ALSO BE EMPLOYED. SEDIMENT WILL BE REMOVED BY SWEEPINGWITHIN 24 HOURS.5. PROTECTION OF INFILTRATION AREAS: IF NECESSARY, ADDITIONAL SEDIMENT CONTROLS (E.G., DIVERSION BERMS)WILL BE INSTALLED TO KEEP RUNOFF AWAY FROM PLANNED INFILTRATION AREAS WHEN EXCAVATED PRIOR TOESTABLISHING PERMANENT COVER WITHIN THE CONTRIBUTING DRAINAGE AREA. (CSW PERMIT ITEMS 16.4 AND 16.5)6. MINIMIZATION OF SOIL COMPACTION AND PRESERVATION OF TOPSOIL: SOIL COMPACTION WILL BE MINIMIZED ANDTOPSOIL WILL BE PRESERVED WHERE POSSIBLE. (CSW PERMIT ITEMS 5.24, 9.14, AND 9.15)7. PRIORITIZATION OF ONSITE INFILTRATION AND SEDIMENT REMOVAL: (CSW PERMIT ITEM 9.16)a. PRIOR TO OFFSITE DISCHARGE, INFILTRATION AND SEDIMENT REMOVAL WILL BE IMPLEMENTED ONSITE WHEREPOSSIBLE.b. DISCHARGES FROM BMPS WILL BE DIRECTED TO VEGETATED AREAS OF THE SITE (INCLUDING ANY NATURALBUFFERS) IN ORDER TO INCREASE SEDIMENT REMOVAL AND MAXIMIZE STORMWATER INFILTRATION. IF EROSIONIS NOTED TO OCCUR AS THE RESULT OF SUCH A DISCHARGE, VELOCITY DISSIPATION BMPS WILL BECONSIDERED AND INSTALLED AS NECESSARY TO PREVENT EROSION.8. BUFFER ZONE OR REDUNDANT SEDIMENT CONTROLS TO PROTECT SURFACE WATERS: (CSW PERMIT ITEM 9.17)a. A 50-FOOT NATURAL BUFFER WILL BE PRESERVED IN CONSTRUCTION AREAS DISCHARGING TO ANON-SPECIAL/NON-IMPAIRED SURFACE WATER OR WETLAND. IF A NON-SPECIAL/NON-IMPAIRED SURFACE WATEROR WETLAND IS LOCATED WITHIN 50 FEET OF THE PROJECT'S EARTH DISTURBANCES AND STORMWATER FLOWSTO THE SURFACE WATER, OR WHEN A BUFFER IS INFEASIBLE, REDUNDANT SEDIMENT CONTROLS WILL BEPROVIDED.b. A 100-FOOT NATURAL BUFFER WILL BE PRESERVED IN CONSTRUCTION AREAS DISCHARGING TO A SPECIAL ORIMPAIRED SURFACE WATER. IF A SPECIAL OR IMPAIRED SURFACE WATER IS LOCATED WITHIN 100 FEET OF THEPROJECT'S EARTH DISTURBANCES AND STORMWATER FLOWS TO THE SURFACE WATER, OR WHEN A BUFFER ISINFEASIBLE, REDUNDANT SEDIMENT CONTROLS WILL BE PROVIDED.c. REDUNDANT PERIMETER CONTROLS WILL BE INSTALLED AT LEAST 5 FEET APART UNLESS LIMITED BY LACK OFAVAILABLE SPACE.9. SEDIMENTATION TREATMENT CHEMICALS: NOT APPLICABLE; USE OF SEDIMENTATION TREATMENT CHEMICALS (E.G.,POLYMERS, FLOCCULANTS, ETC.) IS NOT ANTICIPATED AS PART OF THE PROJECT. (CSW PERMIT ITEMS 5.22 AND 9.18)10. TEMPORARY SEDIMENT BASIN(S): THE PROJECT WILL NOT INCLUDE 10 OR MORE ACRES OF DISTURBED SOIL DRAININGTO A COMMON LOCATION OR 5 OR MORE ACRES DRAINING TO A COMMONLOCATION WITHIN 1 MILE OR A SPECIAL ORIMPAIRED WATER THEREFORE TEMPORARY SEDIMENT BASINS ARE NOT REQUIRED. (CSW PERMIT ITEMS 5.6, 9.13, AND23.10 AND SECTION 14)4.3 DEWATERING AND BASIN DRAINING:NO DEWATERING OR BASIN DRAINING ARE ANTICIPATED AS PART OF THIS PROJECT. (CSW PERMIT SECTION 10 AND ITEM10.5)4.4 BMP DESIGN FACTORS:THE FOLLOWING BMP DESIGN FACTORS HAVE BEEN CONSIDERED IN DESIGNING THE TEMPORARY EROSION PREVENTIONAND SEDIMENT CONTROL BMPS:1. EXPECTED AMOUNT, FREQUENCY, INTENSITY, AND DURATION OF PRECIPITATION:2. NATURE OF STORMWATER RUNOFF AND RUN-ON AT THE SITE, INCLUDING FACTORS SUCH AS EXPECTED FLOW FROMIMPERVIOUS SURFACES, SLOPES, AND SITE DRAINAGE FEATURES:3. STORMWATER VOLUME, VELOCITY, AND PEAK FLOW RATES TO MINIMIZE DISCHARGE OF POLLUTANTS INSTORMWATER AND TO MINIMIZE CHANNEL AND STREAMBANK EROSION AND SCOUR IN THE IMMEDIATE VICINITY OFDISCHARGE POINTS:4. RANGE OF SOIL PARTICLE SIZES EXPECTED TO BE PRESENT:4.5 BMP QUANTITIES:ROCK CONSTRUCTION ENTRANCE: 1 EA.SINGLE ROW SILT FENCE: 560 LFDOUBLE ROW SILT FENCE: 1,850EROSION CONTROL BLANKET: 1,320 SYSEDIMENT CONTROL LOG (SLOPE BREAKS): 200 LF(SEE PAGE 2 OF 2)CADD USER: ERIC P. FITZGERALD FILE: M:\DESIGN\23191480.00\SIBLEY\23191480_G-01_SWPPP.DWG PLOT SCALE: 1:2 PLOT DATE: 5/18/2022 1:21 PMREVISIONSHISTORY DATESuite 2004300 MARKETPOINTE DRIVEFax: (952) 832-2601www.barr.comPh: 1-800-632-2277MINNEAPOLIS, MN 5543505/18/202205/18/2022EPFJPPBARRJPPNORTHSIBLEY PHASE II FIRE SUPPRESSIONSTORMWATER POLLUTION PREVENTION PLAN (SWPPP)41504501038238B05/18/202205/18/202204/21/2022EPFISSUED FOR REVIEWA05/18/2022EPFISSUED FOR CONSTRUCTIONBPC PACKET Pg. # 76 5.0 PERMANENT STORMWATER MANAGEMENT SYSTEM:A PERMANENT STORMWATER MANAGEMENT SYSTEM IS REQUIRED IF THE PROJECT RESULTS IN ONE ACRE OR MOREOF NEW IMPERVIOUS SURFACES OR RESULTS IN A NET INCREASE OF ONE OR MORE ACRES OF CUMMULATIVE NEWIMPERVIOUS SURFACES IN TOTAL OR IF THE PROJECT IS PART OF A LARGER PLAN OF DEVELOPMENT. (CSW PERMITITEM 15.3)5.1 A PERMANENT STORMWATER TREATMENT SYSTEM IS NOT REQUIRED. (CSW PERMIT ITEMS 5.15, 15.4-15.9, AND23.14)5.2 THIS IS NOT A LINEAR PROJECT WITH LACK OF RIGHT OR WAY. (CSW PERMIT ITEM 15.9)5.3 THIS PROJECT DOES NOT DISCHARGE TO A TROUT STREAM (OR A TRIBUTARY TO A TROUT STREAM). (CSW PERMITITEM 23.12)6.0 INSPECTION AND MAINTENANCE ACTIVITIES:6.1 PERSONS WITH REQUIRED TRAINING: TRAINED INDIVIDUALS INCLUDE THOSE PARTIES RESPONSIBLE FORINSTALLING, SUPERVISING, REPAIRING, INSPECTING, AND MAINTAINING EROSION PREVENTION AND SEDIMENTCONTROL BMPS AT THE SITE. TRAINED INDIVIDUALS ARE ALSO RESPONSIBLE FOR IMPLEMENTATION OF THE SWPPPAND COMPLIANCE WITH THE GENERAL PERMIT UNTIL THE CONSTRUCTION ACTIVITIES ARE COMPLETE, PERMANENTCOVER HAS BEEN ESTABLISHED, AND A NOTICE OF TERMINATION (NOT) HAS BEEN SUBMITTED. (CSW PERMIT ITEMS5.20, 5.21, AND 11.9 AND SECTION 21)THESE INDIVIDUALS WILL BE TRAINED IN ACCORDANCE WITH THE REQUIREMENTS OF THE GENERAL PERMIT,INCLUDING THE REQUIREMENT THAT THE CONTENT AND EXTENT OF TRAINING WILL BE COMMENSURATE WITH THEINDIVIDUAL'S JOB DUTIES AND RESPONSIBILITIES.BELOW IS A LIST OF PEOPLE RESPONSIBLE FOR THIS PROJECT WHO ARE KNOWLEDGEABLE AND EXPERIENCED IN THEAPPLICATION OF EROSION PREVENTION AND SEDIMENT CONTROL BMPS.TRAINED INDIVIDUALRESPONSIBILITYTRAINING ENTITY* TRAINING DATEERIC FITZGERALD PREPARATION OF THE SWPPP UNIVERSITY OF MINNESOTA MARCH 2021__________________ OVERSIGHT OF SWPPP IMPLEMENTA- __________________ ________________TION, REVISION, AND AMMENDMENT__________________ PERFORMANCE OF SWPPP INSPECTIONS __________________ ___________________________________ PERFORMANCE OR SUPERVISION OF __________________ _________________INSTALLATION, MAINTENANCE, ANDREPAIR OF BMPS*TRAINING DOCUMENTATION AVAILABLE UPON REQUEST. 6.2 FREQUENCY OF INSPECTIONS: A TRAINED PERSON WILL ROUTINELY INSPECT THE ENTIRE CONSTRUCTION SITE.(CSW PERMIT ITEMS 11.2, 11.10, AND 23.13)xAT LEAST ONCE EVERY 7 DAYS DURING ACTIVE CONSTRUCTIONxWITHIN 24 HOURS AFTER A RAINFALL EVENT GREATER THAN 0.5 INCHES IN 24 HOURSINSPECTION FREQUENCY MAY BE ADJUSTED UNDER THE FOLLOWING CIRCUMSTANCES:xWHERE PARTS OF THE CONSTRUCTION AREAS HAVE PERMANENT COVER, BUT WORK REMAINS ON OTHER PARTSOF THE SITE, INSPECTIONS OF THE AREAS WITH PERMANENT COVER MAY BE REDUCED TO ONCE PER MONTH.xWHERE CONSTRUCTION AREAS HAVE PERMANENT COVER AND NO CONSTRUCTION ACTIVITY IS OCCURRING ONTHE SITE, INSPECTIONS CAN BE REDUCED TO ONCE PER MONTH AND, AFTER 12 MONTHS, MAY BE SUSPENDEDCOMPLETELY UNTIL CONSTRUCTION ACTIVITY RESUMES.xWHERE CONSTRUCTION ACTIVITY HAS BEEN SUSPENDED DUE TO FROZEN GROUND CONDITIONS, THEINSPECTIONS MAY BE SUSPENDED. THE REQUIRED INSPECTIONS AND MAINTENANCE SCHEDULE MUST BEGINWITHIN 24 HOURS AFTER RUNOFF OCCURS AT THE SITE OR UPON RESUMING CONSTRUCTION, WHICHEVERCOMES FIRST.6.3 INSPECTION REQUIREMENTS: EACH CONSTRUCTION STORMWATER SITE INSPECTION WILL INCLUDE INSPECTIONOF THE FOLLOWING AREAS: (CSW PERMIT ITEMS 11.3 THROUGH 11.8)xALL EROSION PREVENTION AND SEDIMENT CONTROL BMPS AND POLLUTION PREVENTION MANAGEMENTMEASURESxSURFACE WATERS FOR EVIDENCE OF EROSION AND SEDIMENT DEPOSITIONxCONSTRUCTION SITE VEHICLE EXIT LOCATIONS FOR EVIDENCE OF OFFSITE SEDIMENT TRACKINGxSTREETS AND OTHER AREAS ADJACENT TO THE PROJECT FOR EVIDENCE OF OFF SITE ACCUMULATIONS OFSEDIMENT6.4 MAINTENANCE REQUIREMENTS: MAINTENANCE OF THE FOLLOWING AREAS AND BMPS WILL BE PERFORMED ASFOLLOWS: (CSW PERMIT ITEMS 11.3 THROUGH 11.8)xNONFUNCTIONAL BMPS WILL BE REPAIRED, REPLACED, OR SUPPLEMENTED WITH FUNCTIONAL BMPS BY THE ENDOF THE NEXT BUSINESS DAY AFTER DISCOVERY OR AS SOON AS FIELD CONDITIONS ALLOW ACCESS.xPERIMETER CONTROL DEVICES WILL BE REPAIRED, REPLACED, OR SUPPLEMENTED WHEN THEY BECOMENONFUNCTIONAL OR THE SEDIMENT REACHES 1/2 OF THE HEIGHT OF THE DEVICE.xTEMPORARY AND PERMANENT SEDIMENTATION BASINS WILL BE DRAINED AND THE SEDIMENT REMOVED WHENTHE DEPTH OF SEDIMENT COLLECTED IN THE BASIN REACHES 1/2 THE STORAGE VOLUME.xDELTAS AND SEDIMENT DEPOSITED IN SURFACE WATERS WILL BE REMOVED, AND THE AREAS WHERE SEDIMENTREMOVAL RESULTS IN EXPOSED SOIL WILL BE RE-STABILIZED. THE REMOVAL AND STABILIZATION WILL BECOMPLETED WITHIN 7 CALENDAR DAYS OF DISCOVERY UNLESS PRECLUDED BY LEGAL, REGULATORY, ORPHYSICAL ACCESS CONSTRAINTS. IF PRECLUDED DUE TO ACCESS CONSTRAINTS, REASONABLE EFFORTS TOOBTAIN ACCESS WILL BE USED. REMOVAL AND STABILIZATION WILL TAKE PLACE WITHIN 7 CALENDAR DAYS OFOBTAINING ACCESS.xTRACKED SEDIMENT ON PAVED SURFACES WILL BE REMOVED WITHIN 1 CALENDAR DAY OF DISCOVERY.xAREAS UNDERGOING STABILIZATION WILL BE RESTABILIZED AS NECESSARY TO ACHIEVE REQUIRED COVER.6.5 RECORDKEEPING REQUIREMENTS: (CSW PERMIT ITEMS 11.11 AND 24.5 AND SECTIONS 6 AND 20)1. ALL INSPECTIONS AND MAINTENANCE ACTIVITIES WILL BE RECORDED IN WRITING WITHIN 24 HOURS OF BEINGCONDUCTED AND THESE RECORDS WILL BE RETAINED WITH THE SWPPP. RECORDS OF EACH INSPECTION ANDMAINTENANCE ACTIVITY WILL INCLUDE THE DATE AND TIME; NAME OF INSPECTOR(S); FINDINGS OF INSPECTIONS;CORRECTIVE ACTIONS (INCLUDING DATES, TIMES, AND PARTY COMPLETING MAINTENANCE ACTIVITIES); ANDDATE OF ALL RAINFALL EVENTS GREATER THAN 0.5 INCHES IN 24 HOURS AND THE AMOUNT OF RAINFALL FOREACH EVENT.a. IF ANY DISCHARGE IS OBSERVED DURING THE INSPECTION, THE LOCATION AND APPEARANCE OF THEDISCHARGE (I.E., COLOR, ODOR, SETTLED OR SUSPENDED SOLIDS, OIL SHEEN, AND OTHER OBVIOUSINDICATORS OF POLLUTANTS) WILL BE DOCUMENTED AND A PHOTOGRAPH WILL BE TAKEN.2. THE SWPPP WILL BE AMENDED TO INCLUDE ADDITIONAL OR MODIFIED BMPS TO CORRECT PROBLEMS ORADDRESS SITUATIONS WHENEVER THERE IS A CHANGE IN DESIGN, CONSTRUCTION, OPERATION, MAINTENANCE,WEATHER, OR SEASONAL CONDITIONS THAT HAS A SIGNIFICANT EFFECT ON THE DISCHARGE OF POLLUTANTS TOSURFACE WATERS OR GROUNDWATER.a. THE SWPPP WILL BE AMENDED WHEN INSPECTIONS OR INVESTIGATIONS BY THE SITE OWNER, OPERATOR,OR CONTRACTORS OR BY USEPA/MPCA OFFICIALS INDICATE THAT THE SWPPP IS NOT EFFECTIVE INELIMINATING OR MINIMIZING THE DISCHARGE OF POLLUTANTS TO SURFACE WATERS OR GROUNDWATER;THE DISCHARGES ARE CAUSING WATER QUALITY STANDARD EXCEEDANCES; OR THE SWPPP IS NOTCONSISTENT WITH A USEPA APPROVED TMDL.b. ANY AMENDMENTS TO THE SWPPP PROPOSED AS A RESULT OF THE INSPECTION WILL BE DOCUMENTED ASREQUIRED WITHIN 7 CALENDAR DAYS.c. AMENDMENTS WILL BE COMPLETED BY AN APPROPRIATELY TRAINED INDIVIDUAL. CHANGES INVOLVING THEUSE OF A LESS STRINGENT BMP WILL INCLUDE A JUSTIFICATION DESCRIBING HOW THE REPLACEMENT BMPIS EFFECTIVE FOR THE SITE CHARACTERISTICS.3. RECORDS RETENTION: THE SWPPP, INCLUDING ALL CHANGES TO IT, AND INSPECTION AND MAINTENANCERECORDS WILL BE KEPT AT THE SITE DURING CONSTRUCTION BY THE PERMITTEE WHO HAS OPERATIONALCONTROL OF THE SITE. THE SWPPP CAN BE KEPT IN EITHER A FIELD OFFICE OR IN AN ON SITE VEHICLE DURINGNORMAL WORKING HOURS.4. RECORD AVAILABILITY: THE PERMITTEES WILL MAKE THE SWPPP, INCLUDING INSPECTION REPORTS,MAINTENANCE RECORDS, AND TRAINING RECORDS, AVAILABLE TO FEDERAL, STATE, AND LOCAL OFFICIALSWITHIN THREE DAYS UPON REQUEST FOR THE DURATION OF THE PERMIT COVERAGE AND FOR THREE YEARSFOLLOWING THE NOTICE OF TERMINATION.7.0 POLLUTION PREVENTION MEASURES:1. ANY CONSTRUCTION PRODUCTS AND LANDSCAPE MATERIALS THAT HAVE THE POTENTIAL TO LEACHPOLLUTANTS WILL BE STORED UNDER COVER (E.G., PLASTIC SHEETING OR TEMPORARY ROOFS) TO PREVENTDISCHARGE OF POLLUTANTS THROUGH MINIMIZATION OF CONTACT WITH STORMWATER. STORAGE OF SUCHMATERIALS WITHIN THE PROJECT AREA WILL BE MINIMIZED TO THE EXTENT POSSIBLE. (CSW PERMIT ITEM 12.2)2. PESTICIDES, FERTILIZERS, AND TREATMENT CHEMICALS WILL BE STORED UNDER COVER (E.G., PLASTICSHEETING, TEMPORARY ROOFS, WITHIN A BUILDING, OR IN WEATHER-PROOF CONTAINERS) TO PREVENTDISCHARGE OF POLLUTANTS THROUGH MINIMIZATION OF CONTACT WITH STORMWATER. STORAGE OF SUCHMATERIALS WITHIN THE PROJECT AREA WILL BE MINIMIZED TO THE EXTENT POSSIBLE. (CSW PERMIT ITEM 12.3)3. HAZARDOUS MATERIALS AND TOXIC WASTE (E.G., OIL, DIESEL FUEL, GASOLINE, HYDRAULIC FLUIDS, PAINTSOLVENTS, PETROLEUM-BASED PRODUCTS, WOOD PRESERVATIVES, ADDITIVES, CURING COMPOUNDS, ANDACIDS) WILL BE STORED AND DISPOSED OF IN COMPLIANCE WITH MINNESOTA RULES CHAPTER 7045, INCLUDINGSECONDARY CONTAINMENT (AS APPLICABLE). HAZARDOUS MATERIALS WILL BE PROPERLY STORED IN SEALEDCONTAINERS TO PREVENT SPILLS, LEAKS, OR OTHER DISCHARGES AND PREVENT PRECIPITATION FROM FALLINGONTO THE CONTAINERS OR STORED HAZARDOUS MATERIALS. (CSW PERMIT ITEMS 2.3 AND 12.4)4. SOLID WASTE WILL BE COLLECTED, STORED, AND DISPOSED OF PROPERLY IN COMPLIANCE WITH MINNESOTARULES CHAPTER 7035. THIS INCLUDES STORAGE WITHIN COVERED TRASH CONTAINERS AND DAILY REMOVAL OFLITTER AND DEBRIS. STORAGE OF SOLID WASTE WITHIN THE PROJECT AREA WILL BE MINIMIZED TO THE EXTENTPOSSIBLE. (CSW PERMIT ITEM 12.5)5. PORTABLE TOILETS WILL BE LOCATED AWAY FROM SURFACE WATERS AND POSITIONED AND SECURED TO THEGROUND SO THEY WILL NOT BE TIPPED OR KNOCKED OVER. SANITARY WASTE WILL BE DISPOSED OF INACCORDANCE WITH MINNESOTA RULES, CHAPTER 7041. PORTABLE TOILETS WILL BE PERIODICALLY EMPTIEDAND THE WASTE HAULED OFF-SITE BY A LICENSED HAULER. (CSW PERMIT ITEM 12.6)6. VEHICLE FUELING WILL ONLY OCCUR IN DESIGNATED AREAS. SPILL KITS SIZED APPROPRIATELY FOR THEAMOUNT OF REFUELING TAKING PLACE WILL BE LOCATED. SPILL KITS WILL BE CLEARLY LABELED AND CONTAINMATERIALS TO ASSIST IN SPILL CLEANUP INCLUDING ABSORBENT PADS, BOOMS FOR CONTAINING SPILLS, ANDHEAVY-DUTY PROTECTIVE GLOVES. SPILLS WILL BE REPORTED TO THE MINNESOTA DUTY OFFICER AS REQUIREDBY MINNESOTA STATUTES, SECTION 115.061. (CSW PERMIT ITEMS 2.3 AND 12.7)a. ANY FUEL TANKS BROUGHT ON-SITE WILL HAVE PROPERLY SIZED CONTAINMENT AND WILL NOT BE TOPPEDOFF TO AVOID SPILLS FROM OVERFILLING. FUEL TANKS WILL MEET INDUSTRY STANDARDS (DESIGNED TOHOLD FUEL TYPE, PROPERLY MAINTAINED, NOT ILLEGALLY MODIFIED, NOT MISSING LEAK INDICATORFLOATS FOR DOUBLE WALLED TANKS, SIGHT GAUGES NOT USED, ETC.) OR BE REMOVED FROM THE WORKAREA.b. GUIDELINES FOR SPILL PREVENTION AND RESPONSE INCLUDE:- TAKE REASONABLE STEPS TO PREVENT THE DISCHARGE OF SPILLED OR LEAKED CHEMICALS,INCLUDING FUEL, FROM ANY AREA WHERE CHEMICALS OR FUEL WILL BE LOADED OR UNLOADED,INCLUDING THE USE OF DRIP PANS OR ABSORBENTS UNLESS INFEASIBLE;- PERFORM REGULAR PREVENTATIVE MAINTENANCE ON TANKS AND FUEL LINES;- INSPECT PUMPS, CYLINDERS, HOSES, VALVES, AND OTHER MECHANICAL EQUIPMENT ON-SITE FORDAMAGE OR DETERIORATION;- DO NOT WASH OR RINSE FUELING AREAS WITH WATER;- MAINTAIN ADEQUATE SUPPLIES TO CLEAN UP DISCHARGED MATERIALS AND PROVIDE ANAPPROPRIATE DISPOSAL METHOD FOR RECOVERED SPILLED MATERIALS;- REPORT AND CLEAN UP SPILLS IMMEDIATELY AS REQUIRED BY MINNESOTA STATUTES, SECTION115.061, USING DRY CLEAN UP MEASURES WHERE POSSIBLE; AND- MAINTAIN COPIES OF SAFETY DATA SHEETS (SDSS) FOR HAZARDOUS MATERIALS ON-SITE INLOCATIONS READILY AVAILABLE TO EMERGENCY RESPONDERS.7. IF VEHICLE AND EQUIPMENT WASHING IS NECESSARY, A VEHICLE WASH STATION WILL BE LOCATED IN ADESIGNATED AREA. RUNOFF FROM THE WASHING AREA WILL BE CONTAINED IN A SEDIMENT BASIN AND WASTEFROM THE WASHING ACTIVITY WILL BE PROPERLY DISPOSED OF. ANY SOAPS, DETERGENTS, OR SOLVENTS WILLBE PROPERLY USED AND STORED. ANY DETERGENTS AND OTHER CLEANERS NOT PERMITTED FOR DISCHARGEWILL NOT BE USED. (CSW PERMIT ITEMS 2.3 AND 12.8)8. THE PROJECT WILL NOT RESULT IN CONCRETE OR OTHER WASHOUT ACTIVITIES. IF NECESSARY, A DESCRIPTIONOF THE STORAGE AND DISPOSAL OF CONCRETE AND OTHER WASHOUT WASTES SO THAT WASTES DO NOTCONTACT THE GROUND WILL BE ADDED. (CSW PERMIT ITEMS 2.3 AND 12.9)8.0 PERMANENT COVER AND PERMIT TERMINATION CONDITIONS:1. THE AREAS DISTURBED DURING CONSTRUCTION WILL BE STABILIZED WITH PERMANENT COVER UPONCOMPLETION OF WORK. PERMANENT COVER MAY BE VEGETATIVE OR NON-VEGETATIVE, AS APPROPRIATE.ESTABLISHMENT OF PERMANENT COVER MAY INCLUDE THE FOLLOWING ACTIVITIES: SEEDING, MULCHING,EROSION CONTROL BLANKETS. (CSW PERMIT ITEM 5.17)2. FOR A CONSTRUCTION-SITE TO ACHIEVE “PERMANENT COVER”, THE FOLLOWING REQUIREMENTS MUST BECOMPLETED PRIOR TO TERMINATION OF PERMIT COVERAGE: (CSW PERMIT SECTIONS 4 AND 13)a. ALL SOIL DISTURBING CONSTRUCTION ACTIVITIES HAVE BEEN COMPLETED AND PERMANENT COVER HASBEEN INSTALLED OVER ALL AREAS. VEGETATIVE COVER CONSISTS OF A UNIFORM PERENNIAL VEGETATIONWITH A DENSITY OF 70% OF ITS EXPECTED FINAL GROWTH. VEGETATION IS NOT REQUIRED WHERE THEFUNCTION OF A SPECIFIC AREA DICTATES NO VEGETATION (SUCH AS IMPERVIOUS SURFACES OR THE BASEOF A SAND FILTER).b. ALL SEDIMENT HAS BEEN REMOVED FROM CONVEYANCE SYSTEMS, INCLUDING CULVERTS.c. ALL TEMPORARY SYNTHETIC EROSION PREVENTION AND SEDIMENT CONTROL BMPS HAVE BEEN REMOVED.BMPS DESIGNED TO DECOMPOSE ON-SITE MAY BE LEFT IN PLACE.WITHIN 30 DAYS AFTER THE TERMINATION CONDITIONS ARE COMPLETE, A NOTICE OF TERMINATION (NOT) FORM WILLBE SUBMITTED TO THE MPCA.PROJECTLOCATIONPROJECT LOCATIONSCALE IN FEET20,00010,0000CADD USER: ERIC P. FITZGERALD FILE: M:\DESIGN\23191480.00\SIBLEY\23191480_G-01_SWPPP.DWG PLOT SCALE: 1:2 PLOT DATE: 5/18/2022 12:26 PMREVISIONSHISTORY DATESuite 2004300 MARKETPOINTE DRIVEFax: (952) 832-2601www.barr.comPh: 1-800-632-2277MINNEAPOLIS, MN 5543505/18/202205/18/2022EPFJPPBARRJPPNORTHSIBLEY PHASE II FIRE SUPPRESSIONSTORMWATER POLLUTION PREVENTION PLAN (SWPPP)41514501038238B05/18/202205/18/202204/21/2022EPFISSUED FOR REVIEWA05/18/2022EPFISSUED FOR CONSTRUCTIONBPC PACKET Pg. # 77 XXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXX X X X X X X X X X XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOEOE OE OE OE OE OE OEOEOE OE OEOEOEOEOEOEOEOEOEOEOEGASGASGASGASGASGASGASGASGASGASGASGAS GAS GAS GAS GAS GASGASGASGASGASGASGASGAS GAS GAS GAS GAS GAS GASGASGASGASWWWWWWWWWWWWWWX XXXXGAS GASXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX O SFSFSFSFSFSFSFSFSFSFSFSFSFSFSFSFSFSFSFSF SFSFSFSFSF SF SF SF SFSFSF SF SFSFSFSFSFSFSFSFSFSFSFSFSFSFSFSF SFSFSFSFSF SF SF SF SFSFSF SF SFSFSFSFSFSFSFSFSFSFSFSFSFSFW W W WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW W WW W WW W W W W W W WWW W W W W W W W W W W W W W W W W WWWWWWWWWWW W W WWWWWWWWWWWWWWWWWWWWWW OEOEE OE OE OE OE OEOOO OOOOEOOOE OEOEOOEOEOEOEEEOEW CADD USER: Eric P. Fitzgerald FILE: M:\DESIGN\23191480.00\SIBLEY\23191480_G-03_EROSION CONTROL PLAN.DWG PLOT SCALE: 1:2 PLOT DATE: 5/18/2022 1:00 PM1-PLAN: EROSION CONTROL N PROPERTY LINE (TYP.)80400SCALE IN FEETEROSION & SEDIMENT CONTROL NOTES:1. INSTALL PERIMETER EROSION CONTROL AT THE LOCATIONS SHOWN ON THE PLANS PRIOR TO THECOMMENCEMENT OF ANY LAND DISTURBANCE OR CONSTRUCTION ACTIVITIES.2. BEFORE BEGINNING CONSTRUCTION, INSTALL A TEMPORARY ROCK CONSTRUCTION ENTRANCE AT EACHPOINT WHERE VEHICLES EXIT THE CONSTRUCTION SITE PRIOR TO COMMENCING ANY CLEARING/GRUBBING,REMOVAL, OR EARTHWORK ACTIVITIES. USE 2 INCH OR GREATER DIAMETER ROCK IN A LAYER AT LEAST 6INCHES THICK ACROSS THE ENTIRE WIDTH OF THE ENTRANCE. EXTEND THE ROCK ENTRANCE AT LEAST 50FEET INTO THE CONSTRUCTION ZONE USING A GEO-TEXTILE FABRIC BENEATH THE AGGREGATE TOPREVENT MIGRATION OF SOIL INTO THE ROCK FROM BELOW.3. REMOVE ALL SOILS AND SEDIMENTS TRACKED OR OTHERWISE DEPOSITED ONTO PUBLIC AND PRIVATEPAVEMENT AREAS. AT A MINIMUM REMOVAL SHALL BE ONCE DAILY. SWEEPING SHALL BE MAINTAINEDTHROUGHOUT THE DURATION OF THE CONSTRUCTION AND DONE IN A MANNER TO PREVENT DUST BEINGBLOWN TO ADJACENT PROPERTIES.4. INSTALL INLET PROTECTION AT ALL CATCH BASIN INLETS WHICH RECEIVE RUNOFF FROM THE DISTURBEDAREAS. CONTRACTOR SHALL CLEAN, REMOVE SEDIMENT, OR REPLACE STORM DRAIN INLET PROTECTIONDEVICES ON A ROUTINE BASIS SUCH THAT THE DEVICES ARE FULLY FUNCTIONAL FOR THE NEXT RAINEVENT. SEDIMENT DEPOSITED IN AND/OR PLUGGING DRAINAGE SYSTEMS IS THE RESPONSIBILITY OF THECONTRACTOR. HAY BALES OR FILTER FABRIC WRAPPED GRATES ARE NOT ALLOWED FOR INLETPROTECTION.5. LOCATE SOIL OR DIRT STOCKPILES NO LESS THAN 25 FEET FROM ANY DRAINAGE CHANNEL. IF REMAININGFOR MORE THAN SEVEN DAYS, STABILIZE THE STOCKPILES BY MULCHING, VEGETATIVE COVER, TARPS, OROTHER MEANS. CONTROL EROSION FROM ALL STOCKPILES BY PLACING SILT BARRIERS AROUND THE PILES.6. MAINTAIN ALL TEMPORARY EROSION AND SEDIMENT CONTROL DEVICES IN PLACE UNTIL THE CONTRIBUTINGDRAINAGE AREA HAS BEEN STABILIZED. INSPECT TEMPORARY EROSION AND SEDIMENT CONTROL DEVICESON A DAILY BASIS AND REPLACE DETERIORATED, DAMAGED, OR ROTTED EROSION CONTROL DEVICESIMMEDIATELY.7. TEMPORARILY OR PERMANENTLY STABILIZE ALL CONSTRUCTION AREAS WHICH HAVE UNDERGONE FINALGRADING, AND ALL AREAS IN WHICH GRADING OR SITE BUILDING CONSTRUCTION OPERATIONS ARE NOTACTIVELY UNDERWAY AGAINST EROSION DUE TO RAIN, WIND AND RUNNING WATER. STABILIZATION TOBEGIN IMMEDIATELY AND BE COMPLETED WITHIN 7 DAYS. USE SEED AND MULCH, EROSION CONTROLMATTIING, AND/OR SODDING AND STAKING IN GREEN SPACE AREAS. REMOVE ALL TEMPORARY SYNTHETIC,STRUCTURAL, NON-BIODEGRADABLE EROSION AND SEDIMENT CONTROL DEVICES AFTER THE SITE HASUNDERGONE FINAL STABILIZATION WITH PERMANENT VEGETATION ESTABLISHMENT. FINAL STABILIZATIONFOR PURPOSES OF THIS REMOVAL IS 70% ESTABLISHED COVER OVER DENUDED AREA.8. CHANGES TO APPROVED EROSION CONTROL PLAN MUST BE APPROVED BY THE ENGINEER PRIOR TOIMPLEMENTATION. CONTRACTOR TO PROVIDE INSTALLATION AND DETAILS FOR ALL PROPOSED ALTERNATETYPE DEVICES.9. IF DEWATERING OR PUMPING OF WATER IS NECESSARY, THE CONTRACTOR IS RESPONSIBLE FOROBTAINING ANY NECESSARY PERMITS AND/OR APPROVALS PRIOR TO DISCHARGE OF ANY WATER FROM THESITE. IF THE DISCHARGE FROM THE DEWATERING OR PUMPING PROCESS IS TURBID OR CONTAINSSEDIMENT LADEN WATER, IT MUST BE TREATED THROUGH THE USE OF SEDIMENT TRAPS, VEGETATIVEFILTER STRIPS, FILTER BAGS (PUMP-IT TUBE DEWATERING BAGS OR EQUAL), OR OTHER SEDIMENTREDUCING MEASURES SUCH THAT THE DISCHARGE IS NOT VISIBLY DIFFERENT FROM THE RECEIVINGWATER. ADDITIONAL EROSION CONTROL MEASURES MAY BE REQUIRED AT THE DISCHARGE POINT TOPREVENT SCOUR EROSION.10. PLACE EROSION CONTROL BLANKET ON ALL DISTURBED AREAS. EROSION CONTROL BLANKET MUST BE2-SIDED WITH NATURAL NETTING, MEETING MnDOT SPECIFICATIONS.11. FINAL GRADING SHOWN ON CIVIL SHEETS.12. DOWNSLOPE ARMORING AT STORM SEWER OUTFALL SHALL BE CONSTRUCTED IN SEMI-DRY CONDITIONS. IFTHE FEATURE IS NOT ABLE TO BE CONSTRUCTIED AND STABILIZED WITH ARMORING IN A SINGLE DAY,EROSION CONTROL BLANKET SHALL BE PLACED OVER ANY DISTURBED CHANNEL AREAS UNTIL WORKRESUMES.13. FOR ALL DISTURBED SLOPE AREAS ADJACENT TO DOWNSLOPE ARMORING, PROVIDE EROSION CONTROLBLANKET AND SEDIMENT CONTROL LOG (AS SLOPE BREAKS) WITHIN 7 DAYS OF COMPLETION OF WORK INTHE AREA. SEE DETAILS 2, 3, AND 5 ON SHEET 4153.EXISTING 10' CONTOUREXISTING 2' CONTOURSYMBOL AND PATTERN LEGENDEXISTING PROPERTY LINEEXISTING WATERMAINSYMBOL AND PATTERN LEGENDXWCONSTRUCTION LIMITSGASEXISTING GAS LINE996994EXISTING FENCEOEEXISTING OVERHEAD ELECTRICSFSILT FENCESLSEDIMENT CONTROL LOGCONSTRUCTION LIMITSDOULBLE ROW OF SILT FENCESEE1G-04ROCK CONSTRUCTION ENTRANCESEE4G-04CONTAINMENTBASINTANK BANK 2TANK BANK 1TANK BANK 5TANK BANK 4TANK BANK 6FLOW DIRECTIONOEEPROTECT EXISTINGFENCE (TYP.)TRENCH DRAINTRENCH DRAINDOUBLE ROW OF SILT FENCESEE1G-04PROVIDE SILT FENCE DOWN GRADIENT OFOUTFALL. REMOVE SILT FENCE ONCEDOWNSLOPE ARMORING IS INSTALLED.SEE1G-04CULVERT OUTLETOUTLET STRUCTUREAND STORM SEWERTRENCH DRAINDIVERSION DITCHPROVIDE EROSION CONTROL BLANKETFOLLOWING DITCH CONSTRUCTIONPROVIDE EROSION CONTROL BLANKETON ALL SLOPES 3H:1V OR STEEPERARMORING AT OUTFALL(SEE CIVIL PLANS)(SEE NOTES 12 AND 13)ARMORING AT OUTFALL(SEE CIVIL PLANS)UPDATED FIRESUPPRESSIONLINE (TYP.)REVISIONSHISTORY DATESuite 2004300 MARKETPOINTE DRIVEFax: (952) 832-2601www.barr.comPh: 1-800-632-2277MINNEAPOLIS, MN 5543505/10/202205/10/2022EPFJPPBARRJPPNORTHSIBLEY PHASE II FIRE SUPPRESSIONEROSION CONTROL PLAN41524501038238B05/10/202205/10/202204/21/2022EPFISSUED FOR REVIEWATRENCH DRAINWWATERMAIN05/10/2022EPFISSUED FOR CONSTRUCTIONBSILT FENCESEE1G-04PC PACKET Pg. # 78 DETAIL: SILT FENCE - MACHINE SLICED-1NOT TO SCALEDOWNSTREAM VIEWSECTION VIEW24" MIN.EMBED POST5 FT. MIN. LENGTH POSTAT 4 FT. MAX. SPACINGGEOTEXTILE FABRIC, 36" MIN.MACHINE SLICE 8" TO 12"DEPTH (PLUS 6" FLAP)GRADEPLASTIC ZIP TIES (MIN. 50 LBSTENSILE STRENGTH) ON TOP8" MIN. 3 PER POSTRUNOFF FLOW DIRECTIONMACHINE SLICE 8"-12"DEPTH (PLUS 6" FLAP)MACHINE SLICED SILT FENCE PER MN/DOT STD.SPECIFICATION 3886, INSTALL PER MN/DOTSTD. SPEC. 25734' MAX.(TYP.)NOTES:1. SILT FENCE SHALL BE INSTALLED PRIOR TO ANY GRADING WORK IN THE AREA TO BE PROTECTED AND SHALL BE MAINTAINED THROUGHOUT THE CONSTRUCTION PERIOD. SILTFENCE AND ANY ACCUMULATED SEDIMENT SHALL BE REMOVED IN CONJUNCTION WITH THE FINAL GRADING AND SITE STABILIZATION.2. SILT FENCE INSTALLATION AND MATERIALS SHALL MEET THE REQUIREMENTS OF MN/DOT SPECIFICATIONS 2573 AND 3886.3. NO HOLES OR GAPS SHALL BE PRESENT IN/UNDER SILT FENCE. PREPARE AREA AS NEEDED TO SMOOTH SURFACE OR REMOVE DEBRIS.4. WHEN SEDIMENT BUILD UP REACHES 1/2 OF FENCE HEIGHT, THE SILT FENCE SHOULD BE REMOVED OR A SECOND SILT FENCE INSTALLED UPSTREAM OF THE EXISTING FENCE AT ASUITABLE DISTANCE.5. WHEN SPLICES ARE NECESSARY MAKE SPLICE AT POST ACCORDING TO SPLICE DETAIL. PLACE THE END POST OF THE SECOND FENCE INSIDE THE END POST OF THE FIRST FENCE.ROTATE BOTH POSTS TOGETHER AT LEAST 180 DEGREES TO CREATE A TIGHT SEAL WITH THE FABRIC MATERIAL. CUT THE FABRIC NEAR THE BOTTOM OF THE POSTS TOACCOMMODATE THE 6 INCH FLAP. THEN DRIVE BOTH POSTS AND BURY THE FLAP. COMPACT BACKFILL.NOT TO SCALE12' MINDETAIL: CONSTRUCTION ENTRANCE - ROCKAS REQUIRED-NOTES:1. MAINTAIN ENTRANCE THROUGHOUT THE CONSTRUCTION PERIODAND REPAIR OR REPLACE AS REQUIRED TO PREVENT TRACKINGOFFSITE.2. REMOVE ENTRANCE IN CONJUNCTION WITH FINAL GRADING AND SITESTABILIZATION.4LENGTH AS REQUIRED50' MINIMUMEXPAND FOR TURNINGRADIUS AS REQUIRED6" MINIMUM1"-2" WASHED ROCKGEOTEXTILE FABRIC (OPTIONAL)FLOWSEDIMENT LOGWOOD STAKE16" MINIMUMSEDIMENT LOGWOOD STAKE16" MINIMUMDETAIL: EROSION LOG - STAKING-3NOT TO SCALESIDE VIEW FLATFRONT VIEWFLOWSEDIMENT LOGSIDE VIEW ON SLOPE16" MINIM U M 12"MINIMUMTOP VIEWWOOD STAKEOVERLAP ENDSNOTES:1. INSTALL SEDIMENT LOG ALONG CONTOURS (CONSTANT ELEVATION).2. NO GAPS SHALL BE PRESENT UNDER SEDIMENT LOG. PREPARE AREA AS NEEDED TOSMOOTH SURFACE OR REMOVE DEBRIS.3. REMOVE ACCUMULATED SEDIMENT WHEN REACHING 1/2 OF LOG HEIGHT.4. MAINTAIN SEDIMENT LOG THROUGHOUT THE CONSTRUCTION PERIOD AND REPAIR ORREPLACED AS REQUIRED.42623A3BSLOPE INSTALLATIONNOTES:1. REFER TO MANUFACTURER RECOMMENDATIONS FOR STAPLE PATTERNS FOR SLOPE INSTALLATIONS.2. PREPARE SOIL BY LOOSENING TOP 1-2 INCHES AND APPLY SEED (AND FERTILIZER WHERE REQUIRED)PRIOR TO INSTALLING BLANKETS. GROUND SHOULD BE SMOOTH AND FREE OF DEBRIS.3. BEGIN (A) AT THE TOP OF THE SLOPE AND ROLL THE BLANKETS DOWN OR (B) AT ONE END OF THESLOPE AND ROLL THE BLANKETS HORIZONTALLY ACROSS THE SLOPE.4. THE EDGES OF PARALLEL BLANKETS MUST BE STAPLED WITH APPROXIMATELY 6" OVERLAP, WITH THEUPHILL BLANKET ON TOP.5. WHEN BLANKETS MUST BE SPLICED DOWN THE SLOPE, PLACE BLANKETS END OVER END (SHINGLESTYLE) WITH APPROXIMATELY 6" OVERLAP. STAPLE THROUGH OVERLAPPED AREA, APPROXIMATELY12" APART.6. BLANKET MATERIALS SHALL BE AS SPECIFIED OR AS APPROVED BY ENGINEER.2-DETAIL: EROSION CONTROL BLANKET - INSTALLATIONNOT TO SCALEFLOW10' TYP. BETWEEN LOGSFLOWFLOWNOTES:1. SEDIMENT CONTROL LOG SHALL BE INSTALLED SO THAT MIDDLE OF LOG ISAPPROXIMATELY 6" LOWER (DOWGRADIENT) TO CREATE A NATURAL FUNNELINGAND KEEP SEDIMENT OUT OF DOWNSLOPE ARMORING.2. CORE MATERIAL SHALL BE BIODEGRADABLE OR RECYCLABLE, SUCH AS COCONUTFIBERS. CORE MATERIAL SHALL BE COMPRESSED AND STUFFED INTO A NETTING.3. CONTAINMENT MESH (NETTING) SHALL BE 100% BIODEGRADABLE MATERIAL SUCHAS BURLAP, TWINE, ETC.4. SEDIMENT CONTROL LOG SHALL BE PLACED AS INDICATED ON THE PLANS ANDWITHIN 24 HOURS OF VEGETATATION REMOVAL.5. SECURE SEDIMENT CONTROL LOG IN A METHOD ADEQUATE TO PREVENTDISPLACEMENT AS A RESULT OF NORMAL RAIN EVENTS, SUCH THAT FLOW IS NOTALLOWED UNDER THE SEDIMENT CONTROL LOG. ALL MATERIALS USED TO SECURESEDIMENT CONTROL LOG SHALL BE 100% BIODEGRADABLE.6. SEDIMENT CONTROL LOG SHALL BE NO LESS THAN 9" IN DIAMETER.7. FOR SEDIMENT CONTROL LOG STAKING SEE48" MAX STAKES (TYP.)SEDIMENT CONTROL LOGFLOWFLOWFLOWFLOWA-SEDIMENT CONTROL LOGDETAIL: SEDIMENT CONTROL LOG (ALONG SLOPE)-5NOT TO SCALE41533A-SECTION: SEDIMENT CONTROL LOG (ALONG SLOPE) NOT TO SCALEPLAN VIEWMATCH LOG LENGTH TOAREA OF DISTURBANCESEDIMENT CONTROL LOG6" (TYP.)CADD USER: Eric P. Fitzgerald FILE: M:\DESIGN\23191480.00\SIBLEY\23191480_G-04_EROSION CONTROL DETAILS.DWG PLOT SCALE: 1:2 PLOT DATE: 5/18/2022 12:42 PMREVISIONSHISTORY DATESuite 2004300 MARKETPOINTE DRIVEFax: (952) 832-2601www.barr.comPh: 1-800-632-2277MINNEAPOLIS, MN 5543505/18/202205/18/2022EPFJPPBARRJPPNORTHSIBLEY PHASE II FIRE SUPPRESSIONEROSION CONTROL DETAILS41534501038238B05/18/202205/18/202204/21/2022EPFISSUED FOR REVIEWA05/18/2022EPFISSUED FOR CONSTRUCTIONBPC PACKET Pg. # 79 PC PACKET Pg. # 80