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Tait Eavironmumtol Systems <br /> usr Construction - Design Maintenance • Compliance <br /> August 3, 2006 <br /> San Joaquin County <br /> Environmental Health Department <br /> 304 E. Webber Ave. Third Floor <br /> Stockton,CA. <br /> Attn: Toua Yang <br /> RE: AT&T SKTNCAOI SCOPE OF WORK REVISION <br /> SENSOR REPLACEMENT <br /> 345 N. SAN JOAQU IN STT <br /> RU <br /> STOCKTON,CA. <br /> Dear Mr. Yang, <br /> Recently we were dispatched to the above referenced AT&T facility to investigate a sump alarm. <br /> It was determined that the existing Veeder Root 352 sensor was faulty and the Technician <br /> replaced the sensor like for like with a new sensor. Upon submittal for an after,the fact permit we <br /> were advised that the Veeder Root discriminating 352 sensor is no longer acceptable for <br /> installation. <br /> We will revise our scope to install a new Veeder Root 208 non-discriminating sensor and remove <br /> the 352-sensor. We will re-program the TLS to accept the new non-discriminating 208 sensor and <br /> perform a visual inspection with the San Joaquin Department of Environmental Health to certify <br /> the now 208 sensor and verify all functions are normal. <br /> Upon review, if you have any questions or require additional information please feel free to <br /> contact me at(916)858-1090 or via email at 1Ln-,AL5jAt&,1,p0 Thank you for your <br /> assistance on this matter <br /> Very Truly Yours, <br /> TAIT ENVIRONMENTAL SYSTEMS <br /> Jason T. Musial <br /> Project Manager <br /> Cr Lic#'-'i88098 6 A7 Uo#095984 NV 1.1c#0049666 <br /> 1863 N.Neville Street e orange,California 92865 o 714,560.8222*714 685.0006 Fax <br /> 3283 Luyung Drive-Rancho Cordova,California 95742-916.858.1090-916.858.1 011 Fax <br /> 18L%L <br /> WJAIT.CoM <br /> zoo it '1VINHNNOXIANH 11VI TTOT8999T6 YVA RT:ZT 90OZ/R0/90 <br />