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EWIPfINNT'N°TAL BTACTS s SIGNIFICANT ENVIROMMOMAL EFFECTS F THE P110POSED PROJECT Domestic Flies : (:gee appendix X for cycle and habits ) Cannery wastes sproad in fields or dumped in silage pits will attract flies . Decaying livestock feed and manure will also attract flies. This "attraction" becomes an adverse impact only when the flies are allowed to breed , lay eggs and. complete �i. their life-cvcle. Some additional fly breeding will occur regardless of how carefully the waste material is managed by the project ® Cattle manure will accumulate and allow larva development . certain amount of the manure will be trampled , destroying fly larva (1'onyak, 1978 ) . Just how complete that destruction will be is impossible to determine without carefully monitor- ing the actual feedlot in question. 1: `dater Oualit , : Spreading cannery wastes on soil will re t y incroa:se its nutrient content (Helphinstine , 1975) . There this nutrient enriched soil is part of the Indian Creek alluvium, it could significantly increase the nutrient contnt of infiltrating and runoff water which enters that alluvial water t .ble. Where are too many variables involved with this spreading ` operation to allow for the accurate prediction of how much the alluvial water table will be affected. The waste-spreading; rate ( in tons/acre ) , frequency of spreading, time of Year, A. whether or not crops follow and what kinds of crops all will affect the amount of nutrient available to pass into the al- luvial eater table . Conducting a monitoring program for water quality during the actual operation is the only accurate A° method for determining this impact . k, d, n; A very similar project in Stanislaus County (Meyer, 1974 ) reports that initially there were increases in sail water nutrients at 5 ft ® depths . After winter cereal-cropping on this project , however, water samples of the same soil sol- utions showed that the grain Ilcrops had extracted the nutrients . Septage injected into the alluvial soil will also in- crease nutrient levels in that soil . Such injections oecuring during; winter and spring runoff periods will cause serious in- creases in. nutrient levels and coliform counts for Indian Creek water ( soil moisture and Indian Creek water are one-in- the-same on the alluvial soils ) . J41, Injections during summer and fall dry periods , however, should have little or no adverse effect on the alluvial water t table ® Evaporation of soil moisture during dry periods is so a