PLATE I 



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LOCATION OF SAMPLING STATION. 

 RIVER MILE. 



SEWAGE TREATMENT PLANT AND IN- 

 DUSTRIAL WASTE DISCHARGES, SAMPLE! 

 MONTHLY. 



SAMPLED ONCE OR TWICE MONTHLY FOF 

 PHYSICAL. CHEMICAL. AND OXYGEN 

 ANALYSES. 



SAMPLED MONTHLY OR BIMONTHLY FOR 

 PLANKTON. BOTTOM ORGANISMS. SEDI- 

 MENT GRADATION, DISSOLVED OXYGEN 

 AND TEMPERATURE. 



SAMPLED DAILY FOR TEMPERATURE ANI 

 ELECTRICAL CONDUCTANCE. CHEMICAL 

 ANALYSES OF COMPOSITE SAMPLES. 



PERIODIC ORGANIC ANALYSES SAMPLING 

 USING CARBON ADSORPTION METHOD. 



"Ill/, 



■■%. 



'■•k 



CONTINUOUS ELECTRICAL CONDUCTIVITl 

 RECORDER. 



STATE OF CALIFORNIA 



THE RESOURCES AGENCY OF CALIFORNIA 



DEPARTMENT OF WATER RESOURCES 



DELTA BRANCH 



SACRAMENTO RIVER WATER POLLUTION SURVEY 



SAMPLING PROGRAM 



AND 



AREA OF INVESTIGATION 



1960-61 



SOLE IN MILES 

 P 5 10 



