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2009-09-14 Response to Letter of Warning --=- (~~ ~ E3<::>L T<::>N &. I'/IE:N K, IN~@ Consulting Engineers & Surveyors 7533 Sunwood Drive NW, Suite 206 · Ramsey, MN 55303 phone (763) 433-2851 · Fax (763) 427-0833 www.bolton-menk.com September 14, 2009 Minnesota Pollution Control Agency Attn: Ms. Teddi Seibring Trofin Minnesota Pollution Control Agency 520 Lafayette Road St. Paul, MN 55155 RE: Response to Letter of Warning Niemeyer Trailer Sales Dear Ms Siebring Trofin: This letter is in response to the 8/17/09 Letter of Warning (LOW) issued by your office. Please know that the City and its representatives will take all measures necessary to achieve compliance, and are appreciative of the assistance and cooperation you have extended. As we have discussed, the City is not the owner of this project, but is working closely with the Owner/Developer to address the issues cited. Upon its receipt, the LOW was shared with the Contractor and it was determined that as the receiver and as having incorporated utility work into the project, the City would provide the response. Addressed respectively to the order they appear on the 8/14/09 Inspection Report, below please find a response to each item identified. Permit Coverage: As we have discussed, the subject project bears the name Niemeyer Trailer Sales, and should not be covered under MPCA LD.# C00022957, as cited in the LOW. Permit LD.# C00022957 (Winter Park Imp 2007-CSW) is a city park project and unrelated to the subject project (Niemeyer Trailer Sales). Upon receipt of your LOW, it was discovered that the subject property (Niemeyer Trailer Sales) had not received an NPDES-CSW permit. It is my understanding, that due to confusion among the Developer's representatives, the permit application was not submitted prior to commencement of site related work. It is, however, my understanding, that since we spoke in the field, the Owner has applied for permit coverage. EC 1: In the fall of 2008, the City issues a grading permit and site grading commenced shortly thereafter. For your use, a copy of the grading agreement and engineering memo are attached. In general, the mass grading of the site was completed by late fall of2008. With the exception of exporting of some stockpiled materials, construction did not resume until summer of2009. In June, under a city contract, a utility extension project began (CSAH 37 Utility Extension) and shortly thereafter the developer related site construction resumed. It is my understanding that the Contractor is aware of stabilizing requirements, including timing thereof, and is working to achieve compliance. Currently, DESIGNING FOR A BETTER TOMORROW Bolton & Menk is an equal opportunity employer. Niemeyer LOW Pg. 3 of3 the Contractor's schedule is to have all site grading and improvements completed by October 5th. EC2: Since the date of the inspection, the ditch along the west side of the property has been graded per plan and stabilized with blanket. Currently the lot immediately adjacent to the ditch is being finish graded and will be stabilized upon completion. SC 1: At the time of inspection, the on-site ponds were not complete and were being used as sediment basins for dewatering associated with utility installation through the wetland. The wetlands have been graded to their original contours and sccdcd with the appropriate mix. Once the pond grading and outlets are complete, the banks will be stabilized and silt fence will be installed around their perimeter. As requested, attached please find the WCA application and notice of decision for the work associated with the wetland impact. SC3: As required, entrance BMP's will be installed and maintained at construction entrances. For you information, the entrance on the west side of the site and the entrance on the east side of the site are located where Karston Avenue and the lift station driveway, respectively, will be constructed permanently. An intermediate construction access will remain during the site development and presumably during construction of the Niemeyer Trailer Sales building. SC4: Since your inspection, perimeter control has been installed around all stockpiles and will be monitored and maintained as required. SC8: As mentioned above, utility lines were constructed through wetlands. Silt fence was placed at the limits of this construction and was removed during restoration grading. Silt fence and other BMP's have been implemented and will be monitored and adjusted as necessary to prevent conveyance of soils into the wetland areas. M1: Perimeter control will be maintained and/or replaced as required to preserve its effectiveness. P 1: The debris pile noticed at the time of inspection as been removed from the site and disposed of. For your use, I have enclosed the following materials: City's CSAH 37 Utility Extension plan WCA wetland exemption application and decision Niemeyer Grading Contract City Engineer's Grading Review Memo City approved constmction plans for Niemeyer Trailer Sales The City will continue to work with the Owner and Contractor to ensure the appropriate corrective actions are taken, and to achieve compliance with City and NPDES compliance. '. Niemeyer LOW Pg. 30f3 Please let me know if you have any questions or woulcllike any additional documentati on. Sincerely, BOLTON & MENK, INC. d I /1/7 /~A" /v:u~\ ;/ . Adam Nafstad, P.E. Albertville City Engineer Enclosures Cc: Larry Kruse - City Administrator Tim Niemeyer - Owner Jay Johnson - Contractor