2014-03-10_HYDROLOGY - M2013052 - Laserfiche WebLink

Home Browse Search

coverage. The Division will use results from the stormwater discharge monitoring as part of this determination. Refer to the next section below for additional information. BASIS FOR SITE - SPECIFIC PARAMETERS Segment 01a of the Fountain Creek Sub - basin, Arkansas Basin is listed as impaired (Regulation No. 93) for E. call in accordance with Section 303(d) of the federal Clean Water Act. Further, the Division has not yet developed a TMDL for E. coli for this segment. The Division does not expect E.coli in this discharge and therefore no additional limitation or monitoring will be added to the certification. The enclosed permit certification also requires benchmark monitoring of stormwater discharges from the facility to confirm that protection of water quality is provided. The specific parameters and benchmark values applicable to such discharges are taken from the EPA 2008 Multi - Sector General Permit (2008 MSGP) for SectorJ — Non - Metallic Mineral Mining and Dressing. DMR DATA In general, the Division will use the benchmark and site - specific benchmark values listed on the enclosed permit certification to evaluate the DMR data to support development and implementation of TMDLs, and to determine whether the potential exists for the discharge to contribute to and /or cause an exceedance of all water quality standards. Additional information from in- stream monitoring, inspections, or other sources may also be used in making this determination. FEE INFORMATION The Annual Fee for this certification is $75 [Category 07, Subcategory 1B — Sand and gravel without process discharge - storm water only, per CRS 25 -8 -502] and is invoiced every July. Do Not Pay This Now. The initial invoice will be prorated and sent to the legal contact shortly. GENERAL INFORMATION • Changes to the certification: Any changes that need to be made to the certification page, e.g., sampling location, monitoring requirements, etc., must be submitted using the "Permit and Certification Modification form" available on the Division's website, www.coloradowaterpermits.com, and signed by the legal contact. • Monitoring and requirements: Monitoring must occur at the frequency established in the permit certification. Weather conditions may not always allow the permittee to collect a sample during business hours; however, the monitoring frequency established in the permit certification must be met. The Division strongly recommends that the permittee contact a lab prior to setting up a sampling program. Monitoring location(s), i.e., outfails, are locations where stormwater exits the facility property, including pipes, ditches, swales, sheet flow and other structures that transport stormwater. The Division expects the permittee to modify the facility SWMP to include a description of all sampling point(s). Sampling point(s) must be representative of the facility's stormwater discharge, taking into account the facility's pollutants of concern. Separate sampling points must be created where the stormwater runoff chemistry has the potential to be different from, or contain different pollutants than, other areas of the facility. One DMR form is required for each sampling point. • Discharge Monitoring Reports (DMRs) and Annual Reports: The permittee shall establish and maintain records that identify, among other information, the exact location(s) where monitoring is conducted. DMRs must be submitted quarterly as long as the certification is in effect. The permittee shall provide the Division with any additional monitoring data for the permitted discharge that is collected for entities other than the Division. Please contact the Division (303- 692 -3517) if DMR forms have not been received. Additionally, the permittee must complete an Annual Report form and submit to the Division by February 15, each year.