|As part of the City’s approved MS4 permit and SWPPP requirements, an annual public hearing is required. The SWPPP includes Best Management Practices that detail actions the City will take to meet the requirements of the permit. The MS4 permit includes a provision for continued monitoring of existing storm sewer structures and pond areas to ensure appropriate infiltration rates and water quality provisions are being adhered to. Additionally, new requirements must be enforced in all new development and reconstruction projects that disturb more than one acre to account for increased infiltration of storm water. In June of each year, the City must submit an annual report of the prior year’s activities to aid the MPCA in their review of our permit compliance. The following is a summary of requirements of the SWPPP that the City has addressed. These include a brief description of each required activity and comments on the City’s progress in meeting each objective.
- Provide public education on the City’s Storm Water Pollution Prevention Plan in the City newsletter: In 2017, City staff published four articles in the City’s quarterly newsletter (one each publication) providing homeowners with information on timely storm water items. These articles included such topics as: debris (leaves, trash, and pet waste) that can reach the storm sewer system; winter salt usage; identification of wetlands; what impacts wetlands; and, general water quality items including information on what homeowners can do to assist. The City website also contains information regarding our street sweeping program and erosion control concerns.
- Provide training for City employees on erosion control and storm water treatment: Internal training is provided to all snow plow drivers at the beginning of each season on proper calibration of deicing equipment and salt usage practices. Additionally, the City partnered with the Coon Creek Watershed District (CCWD) to have three Engineering technicians maintain their existing certifications for construction site management of erosion and stormwater activities. The City's Assistant City Engineer is also certified in the design and review of Storm Water Pollution Prevention Plans for construction projects taking place within the City. In October of 2017, the City received certification from the MPCA for completing requirements of the Smart Salting Level 2 Winter Maintenance Assessment Tool for planning, tracking and implementing salt reduction strategies.
- Hold a public meeting on the City’s Storm Water Pollution Prevention Program: The last annual public hearing took place on April 18, 2017. Additionally, the City partnered with the Coon Creek Watershed District (CCWD) on multiple public events including three neighborhood meetings (Woodcrest Park, Pheasant Ridge Park, and Delta Park), the 2017 North Suburban Home Improvement show on March 11, 2017, and the Green Expo held on April 22, 2017. Handouts were provided to residents at these meetings/events on topics including fall lawn care, non-toxic cleaner recipes produced by the MPCA, and a household hazardous waste checklist.
- Provide information on recycling options: The City has its own community recycling center. In the City’s Community Resources Guide, articles appeared in 2017 describing various recycling programs available to City residents (City and County options). The “Recycling Review” is included with the City's quarterly newsletter, sent to all residents of Coon Rapids. Promotional material were also published in the Coon Rapids Herald. Extensive education and partnerships are coordinated with many area Coon Rapids schools and the Anoka-Hennepin School District. Special events were conducted throughout the year to cover gaps that are not met with regular daily operations; such as paper shredding and appliance, electronics and mattress collection. In 2014 the Recycling Center's hours of operation were expanded to provide service to residents five days per week.
- Provide staff training on soil erosion and review components of Storm Water Pollution Prevention Plan with staff: Two Public Works employees are responsible for inspecting, repairing, and maintaining catch basins and pond inlets/outlets. These employees work in cooperation with the Engineering division to periodically review the City's SWPPP plan and incorporate new and/or necessary revisions to policies and standards. Four Engineering employees are also certified in erosion control and storm water management.
- Review current construction site inspection and enforcement programs and revise as necessary to reduce pollutant discharge: The City continues to utilize WSB & Associates, Inc. to inspect large construction sites for erosion and sediment control issues. WSB works directly with the contractor on site to insure compliance with permit requirements. All projects that disturb more than one acre (including City reconstruction projects) are required to obtain a permit from the CCWD and MPCA, with the City being a responsible party for enforcement actions.
- Inspect 20% of the storm water outfalls and sediment basins and ponds each year: The City inspected 18% of the outfalls, and no sediment basins or ponds in 2017. The City began integrating field data collection technology in 2017, while performing inspections, which accounted for the reduced level of required inspections. To make up for the 2017 deficiency, we will be inspecting additional facilities in 2018.
- Train staff in Best Management Practices in handling equipment and hazardous materials: The City’s Safety Coordinator conducts annual training for all Public Works personnel on the safe handling of hazardous materials. This was conducted in the summer of 2017.
- Review its salt application policies and practices, calibrate equipment, and inspect vehicles as necessary to minimize pollution: In 2017, staff continued monitoring salt usage using a scale previously installed on the loader, and all trucks that spread deicing chemicals are calibrated annually. GPS tracking devices are now installed on all large dump trucks used for plowing, which can track salt usage during each storm event. The City completed certification requirements in 2017 for the Smart Salting Level 2 Winter Maintenance Assessment Tool, which is used for planning, tracking and implementing salt reduction strategies.
- Sweep streets twice annually: Streets were swept three times in the spring and twice in the summer of 2017, resulting in the removal of 3,005 cubic yards of sediment material. There were also four additional sweepings conducted in the fall, resulting in another 6,915 cubic yards of material removed. A total of 9,920 cubic yards of material was therefore removed from the storm sewer system in 2017 as a result of street sweeping activities.
- Evaluate its Public Works Maintenance Facility and apply for a general industrial activity permit under the NPDES requirements: This activity was completed in 2004 and reviewed again in 2014 for compliance. Staff is currently evaluating potential site modifications, including the construction of a berm along the west side of the storage yard that would minimize the potential for runoff into a nearby wetland area. In 2017, the City paved the west side of the Public Works building, which included the addition of a storm water filtration basin and two sump catch basins to help improve water quality.
- Inspect and repair components of the storm water system needing maintenance including manholes, catch basins, ditches and sewer mains: During 2017, Public Works personnel inspected and repaired 16 catch basins, cleaned approximately 348 feet of storm sewer pipe, and removed 6.5 cubic yards of dirt/debris from the system. Maintenance crews also cleaned out several ditches/swales in various locations throughout the City to improve flow within the system and minimize flooding concerns.
- Prepare and implement a capital improvement program for the storm water system: The City reconstructed 10.5 miles of local roads in 2017. This street reconstruction program included the addition of new storm sewer pipes and the repair/replacement of approximately 182 catch basins to correct infiltration concerns and improve surface drainage.