Res 2005-105 - Laserfiche WebLink

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City of San Marcos TPDES Permit No. WQOO 1 0273002 g. The approved program shall not be modified by the permittee without the prior approval of the TCEQ Storm Water & Pretreatment Team (MC 148) of the Water Quality Division. 2. The permittee shall establish and enforce specific local limits to implement the provisions of 40 CFR g403.5. For each POTW with an approyed pretreatment program, the permittee shall continue to develop and enforce local limits as necessary. Additionally, for each POTW with an approved pretreatment program, the permittee shall modify its pretreatment program, including the Legal Authority, Enforcement Response Plan and/or Standard Operating Procedures, if required by the Executive Director to reflect changing conditions at the POTW. Substantial modifications will be approyed in accordance with 40 CFR ~403.18 and the modification will become effectiye upon approval by the Executiye Director in accordance with 40 CFR S403 .18. Upon approyal by the Executive Director of the substantial modification to this approved POTW pretreatment program, the requirement to develop and enforce specific prohibitions and/or limits to implement the prohibitions and limits set forth in 40 CFR S~403.5 (a)(l), (b), (c)(l) and (3), and (d) is a condition of this pennit. The specific prohibitions set out in 40 CFR ~403.5(b) shall be enforced by the permittee unless modified under this provision. 3. The permittee shall analyze the treatment facility influent and effluent for the presence of the toxic pollutants listed in the Texas Surface Water Quality Standards [30 TAC Chapter 307], and in 40 CFR Part 122 Appendix D (TPDES Application Testing Requirements) Table II at least once per year and the toxic pollutants in Table III at least once per three months. If, based upon information available to the permittee, there is reason to suspect the presence of any toxic or hazardous pollutant listed in 40 CFR Part 122 Appendix D Table V, or any other pollutant, known or suspected to adyersely affect treatment plant operation, receiYing water quality, or solids disposal procedures, analysis for those pollutants shall be performed at least once per three months on both the influent and the effluent. The influent and effluent samples collected shall be composite samples consisting of at least 12 aliquots collected at approximately equal intervals over a representatiye 24 hour period and composited according to flow. Sampling and analytical procedures shall be in accordance with guidelines established in 40 CFR Part 136. The effluent samples shall be analyzed to the minimum analytical leyel (MAL). Where composite samples are inappropriate, due to sampling, holding time, or analytical constraints, at least four (4) grab samples, taken at equal intervals over a representative 24 hour period, shall be taken. 4. The permittee shall prepare annually a list of IUs which during the preceding twelye (12) months were in significant noncompliance with applicable pretreatment requirements. For the purposes of this section of the permit, "CONTRIBUTING INDUSTRIES AND PRETREATMENT REQUIREMENTS", significant noncompliance (SNC) shall be determined based upon the more stringent of either criteria established at 40 CFR ~403.8(f)(2)(Yii) [rey. 7/24/90] or criteria established in the approved POTW pretreatment program. This list is to be published annually in September in the largest daily newspaper in the municipality in which the POTW is located. In addition, each September the permittee shall submit an updated pretreatment program status report to the TCEQ Storm Water & Pretreatment Team of the Water Quality Division containing the following information: a. An updated list of all SIUs. For each listed IU, the following information shall be included: Page 44