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Home My WebLink AboutSWG2008-00010 - SWG Letters / Memos - 3/7/2008 Mar 10 08 08,308 Pioneer Digging, Inc. 360427-2363 p.1 Pioneer Digging Inc. 3083 E. Mason Benson Rd. Grapeciew,Wa.98546 360426-1903 office 360-427-2353 fax FAX Date: 3( i o► o� To: MCHD Attn: Trish From: Bob Paysse Re: Allen Pool Hall,Belfair, WA Pages: 3 more Notes: Thank You 93/10/200B NON 9: 03 [JOB NO. 61111 0001 Mar 10 08 0831a Pioneer Digging, Inc. 360-427-2353 p.2 Pioneer Digging Ine. 3083 E. Mason Benson Rd. Crrapeview,WA.98546 360-426-1903 Office 360-427-2353 Fax Match 7,2008 Mason County Department of Health Attu:Reviewing Sanitarian Re: Allen Pool Hall Application SWG 200900010 parcel 1232943-00210 Mr.Allen is planning on a future pool hall in Belfair with 2 employee's.in addition to his customers being able to play pool,he will offer soft drinks and ice cream.There is one unisex restroom in the building with a toilet and a wash basin that will serve the customers.There is also a sink outside the restroom for washing dishes. He expects that the amount of water generated from the sink will be minimal. (Rinsing ice cream scoop" and washing coffee pot etc.).All of the dishes used will be disposable. if you look in the EPA manual under nonresidential wastewater flows,(3.3.2)they vary greatly and are hard to predict it is my recommendation that we use the calculation of 1.6 gallons per flush(new style toilets)and add in a figure of.4 gpd for the wash basin, making a figure of 2.0 gallons per day per customer use. if the pool hall has 100 customers per day and% of them use the restroom once then the number of gallons generated per day would be 150. Add to that an estimate of 100 gpd for the usage of the sink to wash dishes for a total estimated flow of 250 gallons per day. 03/10/2008 MOa 9: 0 3 (JOB a0. 51111 0002 Mar 10 08 08'.31a Pioneer Digging, Inc. 360427-2353 0.3 Pioneer Digging Inc. 3083 E.Mason Benson Rd. Grapeview,WA. 98546 360-426-1803 office 360427-2353 fax Water History Report: Card Shop—3254 cu. Ft. water in 13 months. Divide by 13 =250.3 cu. Ft.per month. Divide by 30 days= 8.34 cu. Ft.per day x 7.5 gallons per cu, Ft. = 62.5 gpd avg. Ili Nita's Nails and the Rice Bowl(Both of these businesses share the same meter and this will also be the meter serving the new pool hall)-- 19,587 cu. Ft water in 13 months. Divide by 13 = 1506.7 cu. Ft. per month Divide by 30 days=50.22 cu. Ft.per day x 7.5 gallons per cu.Ft.=377 gpd avg. . One Ball Jay—8637 ca.Ft.water in 15 months. Divide by 15 =575.8 cu. Ft.per month. Divide by 30 days= 19.2 cu.Ft. per day x 7.5 gallons per cu. Ft. = 144 gpd avg. Total gpd being used=583.5 03/10/2008 a01 9:03 [JOB 90. 61111 0003 Mar 10 08 08:31a Pioneer Digging, Inc. 360-427-2353 p.4 Mr. Leanard Hohman(360-2756473)owns the land south of the establishment that has a community drain field on it serving the pool hall and other buildings. I have included water records for the other businesses using this drain field.According to the as- built information on file there is 988 lin.Ft of drain field that is 2 ft. wide. This makes 1776 sq. it. of absorption area. I have visited the d/f site and dug 3 perk holes determining that it has a loamy sand type 3 soil. With that application rate of.8 gal/sgft/day, we can determine the d/f is capable of a peak load of 1420 gpd.and an average load of 938 gpd. It is currently receiving a total of 580 gpd.Add to that the estimated volume of 250 gpd from the new pool hall to equal a total of 830 gpd going into the Hohman drain field This estimated flow falls with in the recommended avg. daily flow that this system should be able to handle. It is my recommendation that the Allen Pool Hall application be approved with the following conditions: 1.New low flow toilet be verified 2. Water meter readings at 3 mo.,6mo.,and 1 yr.the 1"year of operation to verify actual flows. £ Respectfully P' e W P Robert H. Paysse, Professional On-Site Wastewater Treatment System Designer 03/10/2008 NON 9: 03 [JOB NO. 61111 V1009