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HomeMy WebLinkAboutNC0003719_Staff Comments_19890425NPDES DOCU 4ENT SCANNINO COVER SWEET NPDES Permit: NC0003719 Cedar Creek site WWTP Document Type: Permit Issuance Wasteload Allocation Authorization to Construct (AtC) Permit Modification Complete File - Historical Engineering Alternatives (EAA) Correspondence Owner Name Change CStaff Comments r;° Instream Assessment (67b) Speculative Limits Environmental Assessment (EA) Document Date: April 25, 1989 This document is printed on reuse paper - ignore any content on the reYerse side DIVISION OF ENVIRONMENTAL MANAGEMENT April 25, 1989 MEMORAND M TO: David Foster THRU: Trevor Clements FROM: David Vogt"V SUBJECT: OCPSF Monitoring for Monsanto Company NPDES NC0003719, Cumberland Co. Per your request, I am providing comments on Monsanto's proposed monitoring schedule for the sampling of organic chemicals, plastics, and synthetic fibers (OCPSF) as mandated by the recent final ruling for federal guidelines: 40 CFR Parts 414 and 416. After reviewing their proposal, I would like to offer the following recommendations: A) A once per month sample is acceptable, but Monsanto should prepare ahead of time for certain contingencies such as plant closings due to vacation periods, sampling technicians off sick, etc. With only a datum per pipe per month, it is imperative that the sample be taken as scheduled. B) Outfall sampling should be performed for a minimum of twelve consecutive months. C) Sampling should be done on Wednesdays. D) Only composite samples should be taken. Please contact me if you desire further clarification of this matter. Attachment cc: Tommy Stevens, FRO Monsanto WLA Central Files LJd�CL.6P-) j Ent/ _ Nc / 0+ 6-041- ADC G-rc"�� od (2-.frit.6/ � --Te is A f Monsanto MONSANTO AGRICULTURAL COMPANY A UNIT OF MONSANTO COMPANY P.O. BOX 2307 FAYETTEVILLE, NORTH CAROLINA 28302 PHONE (919) 323-3300 April 3, 1989 f DNRCD State of North Carolina Permitting Department Mr. David Foster P. 0. Box 27687 Raleigh, North Carolina 27611 j .. subject: Monsanto's NPDES permit impact v/s OCPSF regulated compounds. Ref.: NPDES permit No. NC0003719. Dear Mr. Foster: BACKGROUND As a follow-up to the discussions with NC-DNRCD permitting department, the impacts of the OCPSF regulated compounds in the NPDES permit were highlighted. Monsanto opted to withdraw the permit renewal application for a flow increase and instead estab- lished other alternatives which will allow Monsanto to operate within the currently permitted parameters stated in the NPDES permit No. NC 0003719. SITUATION In the future, however, should a permit renewal be necessary it is evident that it will also be modified to include the OCPSF regulated list of compounds with corresponding discharge levels stipulated by the NPDES permitting authority of the State of North Carolina. STATUS ICIA and FII, both of which are polyester and fibers manufactur- ing operations, have a contract with Monsanto which allows their aqueous waste streams to be discharged for treatment by Monsanto owned and operated waste treatment facility regulated by a single NPDES permit. Both ICIA's and Monsanto's recently expanded facility are now on stream and have resumed normal operations. � ; 4 ,.. , . •r-•-• PROPOSED PLAN It is proposed that an extensive sampling plan be implemented and coordinated by Monsanto to characterize each of the major in- fluent streams coming into the waste treatment facility. As out- lined in the proposed sampling plan, attached to: this memo, the sampling and analyses will be conducted by an EPA approved laboratory - Davis & Floyd Inc. - under the designated sar::oling and analytical protocol. The proposed sampling will continue at a once/month/sample for the 4 influents and 1 outfall streams for a maximum of 6 months - a total of 30 samples. Sample analyses will be reviewed every 2 months and if necessary sampling plan will be modified to add or delete existing sample points and/or frequency. Additional samples, other than the stipulated ones, may become necessary to zero -in on the actual source of pol- lutants of any significance. ACTIONS REQUESTED FROM THE PERMITTING DEPARTMENT - N.C. DNRCD 1. The permitting department or designates review this proposal and provide inputs prior to sampling plan implementation tar- get for mid -May, 1989. 2. Recognize that this plan is voluntary on the part of Monsanto and as such is an initial attempt to be exploratory in ap- proach and, therefore, is kept simple and cost effective. 3. Consider the data obtained. from this plan as valid input towards any future permit preparation or renewal. 4. Submit your input and comments to our attention once you have evaluated this approach as soon as possible. at Attachment cc: M. W. Bailey - Monsanto J. F. Hart J. R. Klieve T. D. Wilson H. M. Iwerks - ICIA K. R. Reekstin W. J. Bethea - FII Inc. C. M. Spangler Tommy Stevens - Fayetteville - DNRCD Manhar N. Patel ICIA - Victrex Waste C. FII-Chemical Waste ICIA - Chemical Waste D . Monsanto" s Waste Stream \i V V Monsanto's Waste Treatment System Final Outfall SAMPLING PLAN: Starting May 15, 1989 1. Sample using existing composite samplers at streams A, B, C, D and E. 2. Use services of Davis & Floyd Inc. to obtain complete sets of samples, prepare, ship and analyze each set of samples in their approved labs. 3. Analyze each sample for at least 57 compounds and 6 metals listed in Part 414.91 of the OCPSF Guidelines (other analyses added as necessary). 4. Review data after each set and evaluate any mid -course changes necessary after at least two sets of samples have been analyzed. 5. Record all information necessary and pertaining to capacity of operations at all facilities to include % on stream time, % capacity produced, downtime impacts, etc. 6. Compile all data after six months and share information with the permitting department of N. C. DNRCD in Raleigh with proposed actions for future permit renewal.