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Monitoring and Reporting Program: Page 2 Change Table 2 and all other occurrences of the term bioassay to read: "...bieass toxicity test..." Page 2 Table 2 for Applicability of sediment elutriate, insert new row in table below Row No. 8 (BOD)to read: MET TOC A I B I C I D Page 4 Change Dredge Site Receiving Water Monitoring to read: Constituent/ analysis Units Sampling FrequencX Sam le Type Turbidity NTUs Once perfibur hours Grab/Meter Dissolved Oxygen mg/1 Once perfour hours Grab/Meter H STU Once per./our hours Grab/meter Temperature °F Once er our hours Meter Suspended Solids mg/1 Twice a week Grab Acute Toxicity Test" % Survival Weekly Grab Constituents of concern µg/1 To be determined by stall Grab/composite 1 During dredging operations including operation of tugs and barges,the Discharger shall collect a sample every four hours in which operations occur. The tidal stage at the time of monitoring shall also be logged and all unusual events with the dredge operations that may affect water quality or monitoring such as pipeline breakages shall be noted. 1Dissolved Oxygen measurements shall be collect from two feet above the river bottom. 3Acute Toxicity Test shall be conducted in accordance with EPA/600/4-90/027, or later amendment, with Regional Board staff approval, using juvenile fathead minnow,Pimephales prom elas,as the test species. The ambient water temperature and pH shall be recorded at the time the toxicity test sample is collected. Sampling for R-2 shall be performed down current,mid depth in the water column and in the center of any visible turbidity plume from the dredging operations. In addition,if receiving water monitoring shows a violation of the Receiving Water Limitations, then the Discharger shall immediately collect an additional grab sample and analysis for acute toxicity. 4 Constituents of concern will be identified by Regional Board staff after reviewing the pre-dredge sediment and elutriate analysis. The Notice of Applicability will include a list of constituents of concern for monitoring. Information Sheet: Page 1 Change to read (delete last sentence): "Te pr-evide the Disehafger-with additional time te eelleet site speeifie infafmatie values-firthe 96 220 3xmn f the 2001 dr-ed,* - H*-" Page 2 Replace the term bioassay and all other occurrences to read: "...bieassy toxicity test..." Page 7 Delete term "stele" from all Discharge Applicability Table headers.