Laserfiche WebLink
<br />o <br />o <br />l\:) <br />U1 <br />v~ <br /><:0 <br /> <br />In calculating u.sahlp wl1tcr from !:)lrf'Amflow, allu......(lnc(~[; must <br />be made for low flow periods. The water than can be extracted con- <br />tinuously through these low floYl p~riods is expressed as "yield'! <br />OVer a period of time consideration; a common base is 50 years. <br /> <br />Hax imum y ie Id usual 1 y becomes an Bcadcmi c figure as t~J(~ cos ts <br />of providing storage sufficient for maximtnnyicHi become impractical <br />with resulting compromise construction; however, maximum yield <br />figures are useful in determining the total water reSQUrceR. The <br />maximum yield of streams leaving the Newton-Jasper County ar.ea ex- <br />ceeds 500,000,000 gallons per day.23 Wster use, by six selected <br />purposes, are shown on Table 4. <br /> <br />Water quality in the Newton-Jasper County area is generally <br />good, but waste disposal in this area of Missouri represents a <br />sizeable problema Several large municipalities and industries <br />discharge waste in headwater areas with practically no benefit <br />of dilution. The streams of this areR are highly valued sesthet- <br />ically and receive much recreational usea Any waste discharges <br />to streams of this nature should be of high quality if these <br />values and uses are to be maint~ined. Industrial waste is a <br />major component of the total waste load entering some municipal <br />facilities. In some cases, industrial waste comprise the largest <br />portion of the city's discharge.24 Table 5 shows miles of streams <br />and degree of pollution, according to the Missouri Department of <br />Conservation. <br /> <br />. <br /> <br />Residential area pollution problems are increasing in non- <br />public sewer areas of concentrated housing, many of which have <br />inadequate individual disposal systems with resultant soil sat- <br />uation and ponding. Bacterial pollution of shallow groundwater <br />in these areas will be of lessened conCern with the provision of <br />public water supplies, chiefly through the growth of rural water <br />districts. The entry of waste discharges into underground aqui- <br />fers has been found to be another major problem in this area. <br /> <br />Most sewage facilities, of smaller cities in the area, are <br />oxiuation lagoons. This type of treatment is the most economical <br />for D small community and has been shown to provide a suitable <br />degree of treatment when properly designed, op(~rated and maintained. <br />Host of the area hilS safe, potable groundwater, but there is no. <br />comprehensive program of testing individual wells; many of which <br />arc of sub-standard construction and can be contaminated by surface <br />wot~rs.25 . <br /> <br />The mid-size and larger municipalities in the area provide <br />mechanic~! treatment, generally in the form of trickling filter <br />plants. In several mechanical plant installations, e polish- <br />ing lagoon is used before final discharge. All of the mechanical <br /> <br />- <br /> <br />99 <br />