HYDRO25332 - Laserfiche WebLink

Home Browse Search

Part 1 Page \o. 11 Permit ?~o.: CU-OOi3b18 F'. GENERAL MObIITORING, SA~[PLI~G, AND REPORTI\G REQUIRE.~tENTS 3, , Ann yt;cal and San[piing Methods for bTnnitnn'ng The permitter shall install, calibrate, use and maintain monitoring methods and equipment and indicated pollutant-monih)ring methods. All sampling shall be performed by the pennittce according to specified methods in 40 C.F.R. Part 13G: methods approved by EPA pursuant to =l0 C.F.R. Part 136; or methods approved by the Division, in the absence of a method specified in or approved pursuant to 40 C.F.R. part 136. Thr analytical method selected for a parameter shall be the one that can measure the lowest detection limit for that parameter unless the pemmit limitation or stream standard for those parameters not limited. is within the testing range of another approved method. When requested in writing, the Division may apprvice ail alternative analytical procedure or any significant modification to an approved procedure. ~Vhcn the must sensitive analytical method which complies with this part, has a detection limit greater than or cyual to ti)r permit limit, the pemtittee shall repvrt "less than (the detectable limit)," as appropriate. Such reports shall nut be cvnsiderd a: violations of the pen»it limit "lhe present Ivwest methvd detection limits for specific pammeters (wfiieh have limitations .c!uch are, in some cases, less than or equal to the detection limiq are as follows: Arsenic 10µg/1 Bcozcne 1 µg/I Total Residual Chlorine 50 µg/t Cadmiinn 1µg11, Chromium 10 µg/I Chromium, }iexavalent 10 µg11 Cvpper ~ µL/I Cyanide. WAD 20 µgA Lead 5 µg/I Total Mercury Q00?5 µgil \ickel 50µe/1 Sclanium 10µg1{ Silver I µg11 Sulfide Z pg/I "Lint 50 µg11 These limits apply k) the total recoverable, potentially dissolved, or dissolved fraction of metals. The detection limit specifcd for `free" cyanide is the lowest presently achievable. For hexar•alent chromium, samples must be unacidified so that dissoked concentrations will be measured mihrr than potentially dissohrd concentrations. 4. Rrctx<t. The prtmitiee shall establish and maintain records. Those records shall include the following: (a) The date, type, exact focatimr: and time of sampling or nteasuretnents; (h) The individual(s) who performed the sampling or measurements; (c) The date(s) the analyses were performed; (a) The individual(s) who performed the analyses; (e) The anal}tical techniques or methods used; (t) The results of such analyses; and (g) Any v(her observations which may result in an impact on the yvality or qumttity of the discharge as indicated in 4f) CFR 122.1 {i)(1)(iii). "fhe pennittce shall retain fur a minimum of three (3) years records of all monitoring information. including all ori~ final strip chart recordings for continuous monitoring instrumentation, all calibration and maintenantt rccvrds, copies of all report; reyuired by this pemtit and records of all data used to complete the application for this permit. 7-his period of retention shall be oxtendrd during the course of any unresolved litigation regarding dte discharge of pollutants by the permitter or whin requcacd by dtr Uivision or til'A.