Laserfiche WebLink
I <br /> V. CONCLUSIONS AND RECOMMENDATIONS <br /> NLS§ 4.1. The nitrate loading calculations show the wastewater effluent from the entire subject <br /> property will theoretically possess a nitrate-nitrogen concentration of 6.4 mg/L NO3-N, 36% <br /> below the Federal nitrate Maximum Contaminant Level (MCL) of 10 ppm NO3-N. <br /> I <br /> Shallow perc tests were conducted near the east and west ends of the proposed leachlines. Test j <br /> results yielded dramatic differences, as illustrated in Table 2, even though the soils were similar. <br /> The east boring was drilled with a B-24 Mobile Drill Rig,while the west boring was drilled by <br /> hand auger. As has been observed in the past,the power auger seems to compact the sidewalls of <br /> the soil boring, even though the walls of both borings were opened with a pry bar. Subsequently, <br /> the two perc test results were averaged: <br /> From the perc test results,the acceptance rate for the east leachline soils was 0.331 gallons/ft2/day. <br /> The floor and sidewalls of the leachline trenches can manage: (0.667 ft x 2 sidewalls) x 2 ft floor <br /> width=2.67 ft2/LFLL x 100 LFLL=266:8 ft2 x 0.331 gallons/ft2/day= 88.3 gpd. Taking the <br /> average acceptance rate for both the east and west perc rates, 0.552 gallons/ft2/day was obtained. <br /> Using the total effluent acceptance area, averaged for both the east and west leachlines: <br /> (266.8 ft2+266.8 ft2 = 533.6 ft2)= 533.6 ft2 x 0.552 gallons/ft2/day=294.6 gpd. <br /> If not mandated, consideration should be given to installing water meters on the main water inlets <br /> into the restrooms. Volume usage may then be quantified by the week, month and year. <br /> Consideration should be given to using biodegradable toilet paper since it is anticipated that paper <br /> use may be significant. There are many brands on the market; Scotts®Rapid-Dissolving Toilet <br /> Paper is an example. <br /> LL i <br /> Page -10- <br /> Chesney Consulting <br />