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Union Pacific Railroad <br />Facility Report <br />Location: CA, Stc <br />ckton <br />List <br />Type: Enviro mental Management <br />Name: IW -1 aste Water Plant Abbr: IW -1 <br />Desc: IW -1 i an industrial waste water pretreatment plant <br />(WWTP which processes industrial wastewater prior to <br />dischar e to the City of Stockton sanitary sewer. <br />MP Start: 92 Lat: SbDv: Oakland <br />MP End: 92 <br />Long: <br />Address: Waste Water Plant <br />Union Pacific Railroad Company <br />833 East 8th Street <br />Mow <br />Nbr: <br />City: <br />Stockto County: San Joaquin St: CA <br />Phone: <br />209-54 -7224 Fax: 209-547-7211 Postal: 95206 <br />Country: USA <br />Petroleum <br />Petroleu containing waste water from the Car Shop(VM- <br />Use Desc: <br />5), Direc to locomotive (DTL) fueling area (VM -3), and the <br />ACE leas d areas (VM -1,2 & 4) is processed to remove the <br />oil. The r covered oils are accumulated in the Used Oil <br />Storage ank (TNKO-0295) for shipment to the approved <br />used oil r cycling facility. At pump station on the western <br />fenceline f the WWTP is used to drain used oil filters and <br />accumuat other used oils from other operations. These <br />used oils re also pumped into TNKO-0295. <br />Activities <br />Industria waste water is continuously processed for free oil <br />Desc: <br />and solids in the Primary Clarifier. The water is then put into <br />storage in the 88,000 gal Retention Tank (TNKS-0056). <br />Water fro TNKS-0056 is batch treated and discharged on <br />an "as-ne ded" basis. The batch treatment process has a <br />clarifier fo emulsified oil removal and a dissolved air <br />flotation u it. Cationic and anionic polynmers are used, as <br />needed, t enhance the flotation of the waste. Sludge <br />accumulat d in TNKO-0294 is properly disposed of. Used oil <br />is transfer ed from Tank TNKO-0295 into a tank truck and <br />hauled off- ite for recycling. Flow from the load zone area is <br />back into t e local topographic lows or into the Area Sump <br />of the WW P. <br />Access <br />Enter the and on East 8th Street. Head south to the former <br />Route Desc: <br />diesel shop. The WWTP is located 300 yards south of the <br />diesel shop <br />Flow Desc: <br />Most of th yard surface runoff is contained within the yard <br />limits. Flow within the area of the separation plant is <br />directed ba k to the oil trap for recycling. Flow at AST -6, <br />retired Dies I Storage is directed to the oil/water separator <br />for recyclin . The drains in the containment around Tank <br />No. 6 are n rmally closed. Most of the flow in the diesel <br />shop area ( M1-4) is into drip pans and directed to the <br />separation lant through the facility drainage system, or <br />Page 1 of 2 <br />https://home.www.uprr.coml�mp/engineering/emg/apps/secure/ceps/cfm/reports/info_fac.cfm 4/1/2009 <br />