HYDRO25645 - Laserfiche WebLink

Home Browse Search

,~ rt£ALTl! AND ENVlkONMENT. Water ~i0~ Cuntrvl Divisiurr » Page 2. Pcrmir Nv. CD-(AODOl32 • The perntittee requested relaxatiat of nronuoring frequencies far outfalLs tJOT, 009, DIO, 0t2 and U13 also Ahhough these outfalls have never discharged, under the current permit they rd! must Ge checked once per week. Dn the basis that no dlvchnrge hru occurred recently yr is likely to occur in the near furore, the pr wilt bt amended to require monthly my»itoring with the provision that if discharge cnnu+tences, then nc~ j'reyuency tray be remised bock to the original frequencies. Additional?}'. un "inaccessibility exemptiar" w added fur nutfal! 00T because of hazordvus conditions during some winter periods. 77ris exemption applie access may jeopardize the physical safety' of the sampler due ro conditions such rrs avrrWnchr danger, Da permittee tan report "inruressiblt"for the appropriate monitoring visits. The Division dues not want to endanger any person'.,- sajery. It should be noted that this rxr»tption dons nor apply ro wearhrr condition: are d~icuh Gut our hazardau;. When access to autfall 007 nYfula' br potentially hrttardaus to the opssrutvra, nv nunrituri+tg will be rerluirr providing the fallowing requirements urv stet. For each re/furring perirxl that the permiure srekc this exemption, then shr:t! provide written documentation ujthe speciftc candkions that prevented access Burin; entire reportinx nerirxl. 71tr. Division wilt review thie docantrntntiun and determine whether an ucmption justified. If access is possible during any portion of the reporting perirxl, the permitter wilt be rsprtred t. inspect the autjall at the specked frequencies and cutlecr the required sample., if di;charxing. if the Divr. determines that the permirtee coutd have .vafety reached the site anti cotlecrrd rlre required samples but da do so, enforcement action +nny result. • Atrhough nut requested, another change is tndicrard brace! vn the prrrrritter's +rumirvring results. A comparison ujthe.jielrl artd tab pf! values shows a large variation in Homy rases, with sonu• limitation esceedences occurring in the jield ntcusurentrnts that do nut .rhv,v up in the lob meruurrmrnrs. Appruvrn testing method references irrrlictrte that pN analysis should occur as soon rn possible after, fiehl eollecrion, thereby making the perminer',c,~eld nteaurrements more representative than the lab nrea.curerttcnts. While proper sample measurements con he accomplished from n grnh sample that ie anntvzrd soon njtrr collection, it imp be inferred from the sample t}re oj' "grab" [hnr n !anger holding time is perntissiblc nd is not. 7}te permitter'; own rest results show that longer holding rimes our}~ alter the pN levels. Far this reason, the pli sample q~pe jot ntt outfnlls is being changed from "grnb" to "in•siru ". tf thc~~ choose, the permirtee map continue to also hove the pH analyzed in the lab but for re/sorting requirements, field nwnitorieg results must be, entered art the discharge mnnitaring reports. IV. PERM/T PACE'S AFFECTED B}' AdfENDAIENT.• As a rrsuk of this amendment, pages !d and if are amended. loo C. Kubic June 7, 1995 V. PUBLIC NOTICE COrtf648NTS