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n n <br /> Spanos Property Page 4 <br /> Our Project Number: LGS090501 <br /> 3anuary 30, 2009 -� <br /> /A hotel with approximately 6 rooms is proposed for the sit . The hotel is expected to have an <br /> estimated three to five (3 to 5) o ees. The servic tion is estimated to have <br /> approximately 200 clients and four (4) emp o ees per day. Three (3) small short order <br /> restaurants are proposed for the site. Each food facility is estimated to have approximately five <br /> (5) employees and 200 customers per day. Five (5) commercial/retail buildings are proposed for <br /> the site, ranging from 3,300 to 21,000 square feet. Each of the buildings will have an estimated <br /> one to two (1 to 2) employees and 227 parking spaces available for. clientele. <br /> Our office conducted a recent review at the San Joaquin Public Utilities Department in Stockton <br /> of the annual water meter readings from several locat commercial businesses which are similar <br /> to the proposed facilities on the Site. The rates presented from the references provide general <br /> guidance but-do not always reflect a match in usage. Careful examination, professional <br /> r judgment, and experience are necessary to select a reasonable flow rate estimate. <br /> Please note that the summer month flow meter readings have been subtracted from the annual <br /> average to deduct the water associated with irrigation on site, (water which does not enter the <br /> septic system). The small hotels were contacted for verification of annual occupancy during the <br /> time period.of the collected water records. The hotels reported an average of 25 percent <br /> occupancy; therefore the average number for the proposed hotel on site has been modified to <br /> reflect these circumstances. <br /> These flow numbers should not be used for.septic system design purposes. Typically, use <br /> estimates for the sizing of septic systems include a peak use factor, whereas the numbers <br /> discussed here are based on long-term averages. <br /> Table 1. <br /> Estimated Quanti of Wastewater from Typical Projects <br /> Number of Total <br /> Commercial Facility Average Daily Units Average <br /> Flow (gal) On Site Daily Flow <br /> Gallons <br /> Small Hotel 1,095 gpd x 1 = 1,095 <br /> k1 Office Building 100 gpd x 5 = 500 <br /> Gas Station 400 gpd x 1 = 400 <br /> t <br /> Short Order Restaurant. 350 d x 3 = 1 050 <br /> Long Term Average Daily Flow 3,045 gallons per day <br /> from,Pro osed Site <br /> Z <br /> - /The average total nitrogen concentration of domestic waste water is normally considered to be <br /> 20-85 mg/L-N with 35 to 45 mg/L-N being typical (Crites and Tchobanoglous, 1998). It is <br /> estimated that commercial use will have higher concentrations of total nitrogen when compared <br /> to residential-use. It is estimated that the:average concentration for total nitrogen in waste <br /> water for the hotel aspect of the project is near residential use, approximately 45 mg/L-N over <br /> the long term. The service station and commercial/retail aspect of the project is approximately <br /> 85 mg/L-N ov r_the-long term, and the short order restaurant will have a concentration near <br /> approxima 1V60 m4/L--N,. <br /> 902 Industria!Way-Lodi,CA 95240•209.367.3701 -Fax 209.369.4228 02007 Nei!O.Anderson&Associates,Inc <br />