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<br />I <br />I <br /> (':) <br />I l\j <br /> w <br />I co <br />en <br />'I <br />I <br />II' <br />I <br />I ',I <br />I <br />I <br />,I <br />I <br />I <br />II <br />I <br />II, <br />I . <br />I <br />I <br />I <br />I <br />I <br /> <br />plants, when operated correctly, are designed to provide at least <br />secondary treatment under normal flow conditions. <br /> <br />Industry is a major wastewater contributor. Industry with the <br />most effect on the water ~~ality of the Spring River Rasin is in <br />the Joplin-Carthage area. Center Creek receives most of the <br />industrial waste discharged to the Spring River Basin. Waste dis- <br />charged from chemical industries to Center Creek have been and are <br />creating water quality problems in Center Creek. The large quan- <br />tity of ammonia which is discharged has, in the past, been respon- <br />sible for toxic conditions in the creek and are thought to be the <br />primary cause for oxygen deficits which are commonly found. The <br />water quality problem in Center Creek is quite complicated. Gen- <br />erally, though, only minor water quality control problems occur <br />from municipal and industrial effluents on interstate and intra- <br />state tributaries to the Grand (Neosho) River. <br /> <br />Agricultural wastewaters are not a significant basin wide prob- <br />lem but local complaints have been made to the Missouri Clean Water <br />Commission. In the Spring River Basin alone, annually more than <br />180,000 ca28le are grazed and some 35,000 tons of fertilizer are used <br />on lands. Irrigation is the major use for water in the region, es- <br />pecially in stock production in the area, and it has been reported that <br />appropriate water quality control is being initiated in areas which are <br />creating, or seem likely to create, pollution problems. For example, <br />under Public Law 566 (U.S. Department of Agriculture) several small <br />watershed projects have been initiated whiSB should help to alleviate <br />sediment problems in the region's streams. Silt is not a significant <br />water pollution problem in }tlssouri's interstate tributaries to the <br />Grand (Neosho) River. <br /> <br />Problems of pollution affecting both surface and groundwater <br />have persisted for many decades in the mined areas around Joplin. <br />The study in progress (Section 208 of P.L. 92-500) finds heavy metal <br />content of mine waters to exceed permissible levels for viable life <br />functions of aquatic organisms. Leachats from tailing piles have <br />heavy metal content many fold greater than that of the mine waters. <br />Water from both sources discharge to streams, Center Creek being an <br />example. Stream bottom sediments are being investigated and high <br />levels of heavy metals are being found along some stream segments. <br />Improperly constructed deep wells and ~ells which have become faulty, <br />permit polluted shallow groundwater to enter the deep aquifers. A <br />federally funded project of the 1930's was the plugging of all deep, <br />abandoned wells, which could be found. This has done much to guard <br />the quality of the deep ~foundwater. Unfortunately, not all abandoned <br />deep wells were located. <br /> <br />With larger populations and growing'industrial centers and <br />the demand for water becoming greater, a number of alternatives <br />exist for the increase in the supply of water for the Newton- <br /> <br />102 <br />