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HomeMy WebLinkAboutSEP2001-0020 - SEP Letters / Memos - 3/23/2001 RECEIVED ` �' MAR 2 6 2001 MCCD - P CANNING STATE OF WASHINGTON DEPARTMENT OF ECOLOGY P.O.Box 4777S•Olympia, Washington 98504.7775•(360)407-6300 March 23,2001 Mr.Scott Longanecker Mason County Department of Community Development Planning Division PO Box 279 Shelton,WA 98584 Dear Mr.Longanecker: Thank you for the opportunity to comment on the mitigated determination of nonsignificance for the construction of a Safeway gas station consisting of a 325 square foot kiosk,a fueling canopy with 5 dispensers and 2,20,000 gallon underground fuel storage tanks,with related site work including parking spaces and landscaping(Case No.SEP2001-0020)located on the north side of Clifton Lane at the entry of the Safeway parking lot as proposed by Inform,Inc. We reviewed the environmental checklist and have the following comments: Air Quality Applicant should coordinate with the Olympic Air Pollution Control Authority. Undereround Storaee Tanks: Installation of new underground storage tanks must meet the requirements of the state underground storage tank regulations(Chapter 173-360 WAC). Copies of these regulations and required forms are available from the Department of Ecology by calling(360)407-7202,or toll-free instate 1-800-826-7716. A notice of intent to install tanks must be filed with the Department of Ecology at least 30 days prior to installation. Within 30 days after coming into service,the tanks must be registered with the Department of Ecology on a state notification form. The supervisor on-site during the installation must be licensed by passing an exam administered by the International Fire Code Institute,or by another state with which Washington has a reciprocity agreement. New tanks and any connected piping must be protected from corrosion by either a cathodic protection system,or by being constructed or coated with a non-corrosive material such as fiberglass. An acceptable method of leak detection must be employed,and the tanks must be equipped with spill prevention and overfill protection equipment. Stage I vapor recovery equipment is required on all new gasoline dispensing facilities with a total gasoline nominal storage capacity greater than 10,000 gallons. Also,a certified Stage II vapor recovery system may be required for these facilities in all Western Washington counties(Chapter 173.491 WAC). Mr. Scott Longanecker March 23, 2001 Page 2 Under the Uniform Fire Code, other local permits may be required for the installation of underground storage tanks. The local official charged with administration of the Code should be contacted regarding the permit requirements. Water Quality: Oil/water separators should, at a minimum, be designed, operated, and maintained in accordance with Ecology's Stormwater Management Manual for the Puget Sound Basin" February 1992. This includes routine inspection and maintenance of the separator and establishing a written log of such activity. Discharge from all oil/water separator should not exceed the state guidelines established for discharges containing oil and grease of mineral origin. If you have any questions or would like to respond to these comments, please call Mr.Myron Saikewicz (Air Quality)at(360)407-6325, Mr. Norm Stewart(Underground Storage Tanks)at(360)407-6264, Ms. Kerry Carroll (Water Quality)at(360)407-6294 or with any other questions regarding this proposal I can be reached at (360)407-6787. Sincerely,. �st Karl Rokstad ( SEPA Coordinator Southwest Regional Office KR:aw(01-1610) cc: Kerry Carroll, SWRO/WQ Myron Saikewicz, SWRO/AQP Norm Stewart, SWRO�TCP/USTs I