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==A. SWMP Assessment== | ==A. SWMP Assessment== | ||
The Permittee shall complete an annual assessment of its Stormwater Management Program based on results of information collected and analyzed during the reporting period, including monitoring, structural pollution control device assessments, inspection findings, and public input received. The purpose of the Stormwater Management Program assessment is to provide information for improving performance (including but not limited to reduced pollutant loading and runoff volumes) and to optimize associated planning and design, construction, operation, and maintenance of the municipal separate storm sewer system. | The Permittee shall complete an annual assessment of its Stormwater Management Program based on results of information collected and analyzed during the reporting period, including monitoring, structural pollution control device assessments, inspection findings, and public input received. The purpose of the Stormwater Management Program assessment is to provide information for improving performance (including but not limited to reduced pollutant loading and runoff volumes) and to optimize associated planning and design, construction, operation, and maintenance of the municipal separate storm sewer system. | ||
− | The Permittee shall identify measurable goals for objectives defined in Part VI.A.3 below, which will be employed by the Permittee to quantify performance. The Permittee shall select and implement measurable Minimum Control Measure-specific goals for the assessment program. If another entity has implemented a stormwater assessment program in a portion of the jurisdiction, the Permittee is encouraged to work with that entity to share resources. <br> | + | The Permittee shall identify measurable goals for objectives defined in Part VI.A.3 below, which will be employed by the Permittee to quantify performance. The Permittee shall select and implement measurable Minimum Control Measure-specific goals for the assessment program. If another entity has implemented a stormwater assessment program in a portion of the jurisdiction, the Permittee is encouraged to work with that entity to share resources. <br><br> |
− | The annual assessment of the Stormwater Management Program shall include:<br> | + | The annual assessment of the Stormwater Management Program shall include:<br><br> |
1. an overall evaluation of the nature and extent of the Permittee’s cooperation with other city, county, state and local governmental and non-governmental entities in the overall stormwater management efforts in the drainage area, including the extent to which cooperative monitoring has occurred between agencies listed in Part V.C.7.a of this permit. The evaluation required under Part V.F. of this permit shall consist of successes, impediments realized, and how future efforts could be facilitated so as to reduce costs minimize expenses, improve cooperation, quality and avoid duplication. | 1. an overall evaluation of the nature and extent of the Permittee’s cooperation with other city, county, state and local governmental and non-governmental entities in the overall stormwater management efforts in the drainage area, including the extent to which cooperative monitoring has occurred between agencies listed in Part V.C.7.a of this permit. The evaluation required under Part V.F. of this permit shall consist of successes, impediments realized, and how future efforts could be facilitated so as to reduce costs minimize expenses, improve cooperation, quality and avoid duplication. | ||
− | 2. a description of monitoring and analysis data, including supporting information with relevant Excel spreadsheet with table(s) and graphics, which includes: the date and duration of the storm events sampled, rainfall estimates of the storm event which generated the sampled discharge, and the duration between the storm event sampled and the end of the previous measurable (greater than 0.10 inch rainfall) storm event (estimated build-up and wash-off events). The assessment shall also include estimates of annual and seasonal pollutant loads for parameters listed in Table1, from the cumulative discharges to waters of the state from each identified municipal outfall along with a statement of annual estimated runoff volumes and associated flow-weighted mean concentration for each municipal outfall. The calculation shall be made for all of the pollutants listed in Table 1. This assessment shall also include descriptions of the calculation method(s) used, including identification of software, and calibration of any model employed. Electronic copies of modeling and spreadsheets shall be included in the Annual Report. An analysis of uncertainty associated with loading estimates for unmonitored portions of the municipal separate storm sewer system shall also be included. | + | 2. a description of monitoring and analysis data, including supporting information with relevant Excel spreadsheet with table(s) and graphics, which includes: the date and duration of the storm events sampled, rainfall estimates of the storm event which generated the sampled discharge, and the duration between the storm event sampled and the end of the previous measurable (greater than 0.10 inch rainfall) storm event (estimated build-up and wash-off events). The assessment shall also include estimates of annual and seasonal pollutant loads for parameters listed in Table1, from the cumulative discharges to waters of the state from each identified municipal outfall along with a statement of annual estimated runoff volumes and associated flow-weighted mean concentration for each municipal outfall. The calculation shall be made for all of the pollutants listed in Table 1. This assessment shall also include descriptions of the calculation method(s) used, including identification of software, and calibration of any model employed. Electronic copies of modeling and spreadsheets shall be included in the Annual Report. An analysis of uncertainty associated with loading estimates for unmonitored portions of the municipal separate storm sewer system shall also be included.<br><br> |
The presentation of all required information shall be organized by outfall watershed to the Mississippi River beginning from the north and progressing downstream with tabulations organized by appropriate discharge to (1) the east bank of the Mississippi River and (2) the west bank of the Mississippi River. The Permittee shall: | The presentation of all required information shall be organized by outfall watershed to the Mississippi River beginning from the north and progressing downstream with tabulations organized by appropriate discharge to (1) the east bank of the Mississippi River and (2) the west bank of the Mississippi River. The Permittee shall: | ||
:a. identify each Mississippi River discharge location, its drainage area located within the Permittee’s jurisdiction, land areas by use, and impervious cover, and identify any upstream contributing areas that extend beyond the Permittee’s municipal boundaries; and | :a. identify each Mississippi River discharge location, its drainage area located within the Permittee’s jurisdiction, land areas by use, and impervious cover, and identify any upstream contributing areas that extend beyond the Permittee’s municipal boundaries; and | ||
− | :b.identify watersheds and storm sewer flow networks located within the Permittee’s jurisdiction for: | + | :b. identify watersheds and storm sewer flow networks located within the Permittee’s jurisdiction for: |
::1) Shingle Creek; | ::1) Shingle Creek; | ||
::2) Bassett Creek; and | ::2) Bassett Creek; and |
The Permittee shall complete an annual assessment of its Stormwater Management Program based on results of information collected and analyzed during the reporting period, including monitoring, structural pollution control device assessments, inspection findings, and public input received. The purpose of the Stormwater Management Program assessment is to provide information for improving performance (including but not limited to reduced pollutant loading and runoff volumes) and to optimize associated planning and design, construction, operation, and maintenance of the municipal separate storm sewer system.
The Permittee shall identify measurable goals for objectives defined in Part VI.A.3 below, which will be employed by the Permittee to quantify performance. The Permittee shall select and implement measurable Minimum Control Measure-specific goals for the assessment program. If another entity has implemented a stormwater assessment program in a portion of the jurisdiction, the Permittee is encouraged to work with that entity to share resources.
The annual assessment of the Stormwater Management Program shall include:
1. an overall evaluation of the nature and extent of the Permittee’s cooperation with other city, county, state and local governmental and non-governmental entities in the overall stormwater management efforts in the drainage area, including the extent to which cooperative monitoring has occurred between agencies listed in Part V.C.7.a of this permit. The evaluation required under Part V.F. of this permit shall consist of successes, impediments realized, and how future efforts could be facilitated so as to reduce costs minimize expenses, improve cooperation, quality and avoid duplication.
2. a description of monitoring and analysis data, including supporting information with relevant Excel spreadsheet with table(s) and graphics, which includes: the date and duration of the storm events sampled, rainfall estimates of the storm event which generated the sampled discharge, and the duration between the storm event sampled and the end of the previous measurable (greater than 0.10 inch rainfall) storm event (estimated build-up and wash-off events). The assessment shall also include estimates of annual and seasonal pollutant loads for parameters listed in Table1, from the cumulative discharges to waters of the state from each identified municipal outfall along with a statement of annual estimated runoff volumes and associated flow-weighted mean concentration for each municipal outfall. The calculation shall be made for all of the pollutants listed in Table 1. This assessment shall also include descriptions of the calculation method(s) used, including identification of software, and calibration of any model employed. Electronic copies of modeling and spreadsheets shall be included in the Annual Report. An analysis of uncertainty associated with loading estimates for unmonitored portions of the municipal separate storm sewer system shall also be included.
The presentation of all required information shall be organized by outfall watershed to the Mississippi River beginning from the north and progressing downstream with tabulations organized by appropriate discharge to (1) the east bank of the Mississippi River and (2) the west bank of the Mississippi River. The Permittee shall:
3. An analysis of the Stormwater Management Program’s effectiveness through implementation of the following:
4. An analysis of the appropriateness and performance of the Permittee’s stormwater management techniques and BMPs in reducing runoff volumes and pollutant loading to waters of the state. This should include consideration of weather variability including extreme events, extended dry periods, extended wet periods, and storm intensities that may affect stormwater system performance.
5. An analysis of the overall effectiveness of the Stormwater Management Program in achieving the long-term goals.
6. A fiscal analysis of the budget implementing the Stormwater Management Program that includes, but shall not be limited to, the expenditures for the previous fiscal year, the budget for the current fiscal year, the source of funds, and an estimated annual budget for the next five years. The analysis shall include the capital, operation, maintenance and staff resource costs of each item in the program.
The assessment completed under Part IV.A of this permit shall be submitted with the Annual Report required under Part V.E of this permit.
The Permittee shall keep records required by the NPDES permit for at least three years beyond the term of this permit, including all records of the exact place, date and time of any inspection, sample, measurement, analysis, or assessment; the name of each person who performed the sample collection, measurement, analysis, calculation or assessment; the analytical technique, procedures and methods used; the results of the analysis or assessment; and any calculations, original recordings from automatic monitoring instruments, and laboratory sheets. The Permittee shall extend these record retention periods upon request of the MPCA and/or during the course of an unresolved audit or enforcement action (Minn. R. 7001.0150, subp. 2(C)).
The Permittee shall make its records, including the Stormwater Management Program, available to the public at reasonable times during regular business hours (see 40 CFR § 122.7 for confidentiality provision). The Permittee may assess a reasonable charge for copying. The Permittee may require a member of the public to provide advance notice.
Except for data determined to be confidential according to Minn. Stat. § 116.075, subd. 2, all reports required by this permit shall be available for public inspection at the MPCA St. Paul office. Monitoring or effluent data shall not be considered confidential. Confidential material shall be submitted according to Minn. R. 7000.1300.
The Permittee shall submit each year the Annual Report required under Part V.E on the schedule under VI.E of this permit. The report shall communicate in detail the following:
1. The status of the Permittee’s compliance with conditions of this permit and the current Commissioner-approved Stormwater Management Program.
2. Minimum Control Measures.
3. In addition to the compliance status and Minimum Control Measure reporting requirements, the Permittee shall include the following in the Annual Report:
The Permittee shall submit to the Commissioner:
1. The Annual Report required under Part V.E of this permit, by June 30, for each year of the permit term;
2. the revised Stormwater Management Program required under Part II.C.1 of this permit including a revised stormwater monitoring and analysis program, within 180 days of permit issuance; and
3. the plan to reduce stormwater runoff volume required under Part V.C.5.a of this permit, within 36 months of permit issuance.
4. the Stage 1 Inventory information required under Part V.C.6.g.1 of this Permit within 12 months of permit issuance.
The plan and reports shall be submitted to:
Supervisor, Municipal Stormwater Unit MS4 Stormwater Program MPCA 520 Lafayette Road North St. Paul, MN 55155-4194