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HomeMy WebLinkAboutSEP2005-00003 Ecology - SEP Letters / Memos - 1/25/2005 JAN-25-2005 TUE 02: 17 PM DOE SW REGIONAL OFFICE FAX NO, 360 407 6305 P. 01/02 HE STATE OF WASFIINGTOiV TO BE KEPT IN VARTMENT OF ECOLOGY �Bo,,,fri lympia, Washington 98504-7775 • (360) 407-6300 PARCH January 25, 2005 Your E C dress Mr.Rick Mraz is in t Mason County Department of Community Development Kits Planning Division waterst ied PO Box 279 Shelton, WA 98584 Dear Mr. .Mraz: Thank you for the opportunity to comment on the mitigated determination of nonsignif cnce for the Loudin Grading Project(SEP2005-00003)located two miles down Old Belfair Highwa on the right as proposed by Chet Loudin. We reviewed the environmental checklist and have the follo vring comments: TOXICS CLEANUP: Chuck Cline(360) 407-6267 If contamination is currently known or observed during construction,sampling of the p entially contaminated media must be conducted. If contamination of soil or groundwater is rea 1,ly visible, or is revealed by sampling,the Department of Ecology must be notified. If operation of the systern results in a release of petroleum hydrocarbons considered to have concentrations greater than Mod Toxics Control Act cleanup levels,please contact the Environmental Report Tracking System Coordin c or at the Southwest Regional Office at(360)407-6300. For assistance and information about sL t sequent cleanup and to identify the type of testing that will be required contact Mr. Chuck Cline at (360 07-6267. WATER QUALITY: Betsy Dickes(360)407-6294 Any discharge of sediment-laden runoff or other pollutants to waters of the state is in v i lation of Chapter 90.48,Water Pollution Control, and WAC 173-201A, Water Quality Standards for Sur 71ace Waters of the State of Washington, and is subject to enforcement action. Waters of the state include t are not limited to waters in roadside ditches and storm drains. Erosion control measures must be in place prior to any clearing, grading, or constructs . These control measures must be effective to prevent stormwater runoff from carrying soil and other I ollutants into surface water or storm drains that lead to waters of the state. Sand, silt,clay particles, md soil will damage aquatic habitat and are considered to be pollutants. Soil in stockpiles should be stabilized or protected with sediment-trapping measures tc event soil loss. All exposed areas of final grade or areas that are not scheduled for work, whether at fi 41 grade or otherwise, shall not remain exposed and un-worked for more than two days,between tober 1 and April 30. Between May 1 and September 30,no soils shall remain exposed and un-worked r more than 7 days. Source control best management practices such as plastic covering, mulch,temporary geeding, and phased clearing(for example) should be used to control erosion during construction. More ey amples of effective source control Best Management Practices can be found in Washington Department o cology's two JAN-25-2005 TUE 02: 17 PM DOE SW REGIONAL OFFICE FAX NO. 360 407 6305 P. 02/02 January 25,2005 Page 2 stormwater management manuals,Stormwater Management Manual for Puget Sound(1 2) and Stormwater Management Manual for Western Washington (2001). Cut and/or fill slopes should be designed to minimize erosion. Methods such as slope roughening, terraces, or pipe slope drains may be used. During construction,all releases of oils,hydraulic fluids, fuels,other petroleum productspaints, solvents, and other deleterious materials must be contained and removed in a manner that will prerent their discharge to waters and soils of the state. The cleanup of spills should take precedence aver other work on the site. It is not clear from the SEPA review if the total area to be graded and worked will amoul Lt to 1-acre or more. So,the following information is being included for your review and assessment: As of March 10 2003, federal law requires all sites where soil disturbance will be one ac and larger to obtain an NPDES stormwater permit if the site has the potential to discharge to surface N rater. However, Ecology has been using enforcement discretion with un-permitted sites that are 1-5 acreE size, since we have not revised our general permit yet to address 1-5 acre sites. We expect to revise the ermit later this year and it will probably go into effect by September 2005. In the mean time, operators of 1-5 acres sites that want to get a permit now to meet federal requirements and minimize Clean Water Act liability may do so by using our current NPDES construction permit for sites 5 acres or greater. Ana Y..3lication form can be downloaded from hqp://www.ecy.wa.lzov/,Drpffams/wq/stonnwater/cons ruction)hAnjolication or you can contact Linda Matlock directly at(360) 407-6437 If you have any questions or would like to respond to these comments please contact tht appropriate reviewing staff listed above. Department of Ecology Southwest Regional Office (AW: 05-0224) cc: Chuck Cline,TCP Betsy Dickes, WQ Linda Matlock,WQ/HQ Chet and Deborah Loudin(Applicants)