R2013-20 AUTHORIZING THE AMENDED AND RESTATED RAW WATER SUPPLY AGREEMENT WITH ARCHER DANIELS MIDLAND COMPANY

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Page No. 2 Log No. C-0605-03 3. Any spoil material excavated, dredged or otherwise produced must not be returned to the waterway but must be deposited.in a self-contained area in compliance with all state statues,regulations and permit requirements with no discharge to waters of the State unless a permit has been issued by this Agency. Any backfilling must be done with clean material and placed in a mariner to prevent violation of applicable water quality standards. 4. All areas affected-by.construction shall be mulched and seeded as soon after construction as possible. The applicant shall undertake necessary measures and procedures to reduce erosion during construction. Interim measures to prevent erosion during construction shall be taken and may include the installation-of staked straw bales',sedimentation basins and temporary mulching....All construction within-the waterway shall be constructed during zero or low flow conditions. The,applicant shall be responsible for obtaining an NPDES Storm Water Permit prior to initiating construction if the , construction activity associated with the project.will result in the disturbance.-of 1 (one)or more acres, total land area on-or after March 10,'2003. An NPDES Storm Water Permit-may be obtained by submitting a properly completed Notice of Intent(NOI)form by certified mail to-the Agency's Division of Water Pollution Control' Permit Section. 5. The applicant shall irriplem'ent erosion control measures consistent with the".Illinois Urban Manual" (IEPA/USDA,'NRCS;2002). 6. Asphalt,bituminous material and concrete with protruding material such as reinforcingbar or mesh shall not be.1)used for backfill,2)placed on shorelinesistreambanks, or 3)placed:in waters of the . - I State. 7. The proposed work shall be constructed with adequate erosion-control measures (i.e:, silt.fences, straw bales,etc.)to prevent transport of sediment and materials downstream. I 8. The fill material used for the construction of-the temporary dams shall-be predominantly Sand or I larger size material,with<20%o.passing a.,#23 0 U.S.sieve. 9. The applicant shall monitor the surface water for dissolved oxygen.(DO),pH,andtemperature at locations upsteam of each temporary•dam and.locations downstream of each.temporary dam representative.of the water quality in each area. Prior to construction of the dams,at each sample location,the applicant shall monitor for the above parameters at near surface,and at mid-depth. Samples shall betaken within 1 hour before sunrise and at mid-.afternoon. In the pre-construction phase sampling shall be conducted a minimum one.day per week fortwo weeks. After construction of the dams,the applicant shall monitor the above parameters-at the same locations at a frequency of once every week when water levels are below the top of the dams and until the dams are removed. If any analysis results show less than 6 mg/L DO,hourly sampling shall be conducted until monitoring shows that the dissolved oxygen standard has been met. Monitoring records shall be kept oftime, place,method of measurement, and who made the measurement for each sample taken.The applicant j shall submit monitoring reports of the analysis results by the 15`x'of the month following the month ofin ' the collection of the samples to.the following address: j Illinois-Environmental Protection Agency Bureau of Water Watershed Management Section 1021 North Grand Avenue East Post Office Box 19276 i Springfield,Illinois 62794-9276