Summary of Storm Water Pollution Prevention Plan 2006 Development Process

Before beginning to select BMPs and Measurable Goals, City staff undertook a self-assessment of our storm water system. Representatives from the firm Bonestroo, Rosene, Anderlik and Associates met with City of Mendota Heights staff to facilitate and document the self-assessment process. This was an evaluation of our City’s conditions, needs, and practices. The objective of the process was to provide a knowledge base upon which to structure our SWPPP to meet the Permit’s Maximum Extent Practicable standard. Details of this process are presented below.

Details of the Self-Assessment Process

The self-assessment was guided by materials included in the League of Minnesota Cities NPDES Phase II MS4 Guide Plan. This self-assessment process was accomplished through a set of discussions and communications between City and Bonestroo staff.

The results of this process include a set of understandings among City staff and written notes that together represent knowledge of our local stormwater system and the conditions that shape it. We have used the results of this self-assessment process to guide our selection of BMPs and Measurable Goals that make up the SWPPP for our Permit Application.

Based on this self-assessment process, our staff has considered the following, as well as

additional, factors in order to meet the Maximum Extent Practicable standard set forth in the

Permit:

·        sources of pollutants

·        potentially polluting activities being conducted in the watershed

·        sensitivity of receiving waters

·        uses of receiving waters

·        specific local concerns

·        the size of our community

·        climate

·        implementation schedules

·        current ability to finance stormwater programs

·        hydrology

·        geology

·        capacity to perform operation & maintenance

·        local land uses

·        rate and type of development

·        characteristics of our watershed

·        organizational characteristics of our city

In addition to the self-assessment process discussed above, our staff has also considered the non­stormwater discharges listed below to determine whether they should be identified as significant contributors of pollutants to our stormwater system. We have determined that they are not significant contributors of pollutants to the Mendota Heights stormwater system.

·        water line flushing