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l <br /> t Tom Gau, Senior Civil Engineer <br /> May 4, 1998 <br /> Page 2 <br /> r <br /> a. Chapter 5. Drainage and Water Quality <br /> 1) A map of all existing and proposed storm drainage facilities should be 1'3 <br /> included in this section. <br /> 2) Page 5-5, 2nd paragraph <br /> I <br /> The sentence "Wells used for domestic and..." may not be accurate. The <br /> author should verify this. <br /> I <br /> I r, 3) As stated in our comments during the NOP, the salinity impacts by intrusion <br /> of connate brines from the Delta will cause significant harm to the <br /> A groundwater basin in this area. This is a significant environmental impact <br /> t -that needs to be discussed in much more detail. <br /> 4) As stated in our comments during the NOP, the effects of the contaminated <br /> groundwater plume near the Austin Road Landfill need to be addressed. No <br /> NO <br /> discussion of this issue, however, has been included in the subject EER. <br /> Given the size of this development and the increased demand for water, this <br /> 1 is a significant environmental impact that must be addressed. <br /> 5) The storm detention basin and outfall shown on Figure 5-1 appear to be <br /> within the Stockton city limits. All storm utility facilities constructed within the f'7 <br /> city limits must comply with COS design standards and be approved by the <br /> ' City Engineer and/or the Director of Municipal Utilities. <br /> 6) The subject document needs to identify the proposed location of terminal <br /> drainage for the project. In addition, the author has not addressed any <br /> potential impacts to areas downstream of the proposed location of terminal <br /> drainage. Given the restricted.conveyance capacities of the sloughs in this <br /> area, downstream improvements may be necessary to comply with the <br /> 1 appropriate regulatory design requirements. <br /> 1 . <br /> 7) If any of the facilities are constructed within the City of Stockton corporate <br /> limits, or if any of the drainage water from the project is conveyed into, or <br /> through, the City of Stockton, drainage facilities constructed in conjunction q <br /> with the Stockton Metropolitan Airport project must comply with the City's I' <br /> most recently adopted Storm Water management Program and pay all <br /> associated fees. The author of the E1R needs to address this issue <br /> accordingly. <br /> b. Chanter 10. Public Services and Utilities - Water <br /> 1) Page 10-3: <br /> a) A map of all existing and proposed water facilities should be included No <br /> in this section. <br /> �t <br />