Lodi Citizen's Monitoring - Lodi, California
December 2008
Weather: Clear, Sunny, temperature 13 C (56 F)
date Water had some olive-brown color, and algae reported.
05-Dec-08 River level down, dam lowered, Lodi Lake "drained"
            Dissolved   (TDS) Nitrate,  
        Water Oxygen Turbidity Conduct. as mg/L  
Test Site Date Time  pH Temperature mg/L NTU uS Nitrogen Remarks
Site #1 05-Dec-08 10:01 7.7 11.3 C 52.3 F 9.6 3.9 ntu 50 0  
River before City     A A   A A A A  
Storm System inlets                    
Site # 2 05-Dec-08 10:31 7.5 11.1 C 52.0 F 9.2 4.9 ntu 50 0  
River     A A   B A A A  
near Casa de Lodi                    
Site # 5 05-Dec-08 15:00 7.5 12.1 C 53.8 F 11.0 2.4 ntu 50 na  
River at     A A   A A A    
1050 N Lincoln                    
Site # 7 05-Dec-08 15:40 8.5 11.7 C 53.1 F 10.7 3.3 ntu 70 0 litter and 
River, near Gazebo     B A   A A A A leaves reported
N/O Lodi Lake                    
Site # 7A                   No Water in Lake
East end (S/o SD)                    
Lodi Lake                    
Site # 8                   No Water in Lake
Lodi Lake                    
near Storm Drain                    
Site # 9A 05-Dec-08 15:15 7.8 11.9 C 53.4 F 10.3 4.3 ntu 50 na  
River below WID     A A   A A A    
Dam at Bridge                    
Weather: Early rain, then clear, light breeze, temperature 10 C (50 F)
date Water had some olive-brown and green color.
19-Dec-08 River level down, dam lowered, Lodi Lake "drained"
            Dissolved   (TDS) Nitrate,  
        Water Oxygen Turbidity Conduct. as mg/L  
Test Site Date Time  pH Temperature mg/L NTU uS Nitrogen Remarks
Site #1 19-Dec-08 10:53 7.8 9.0 C 48.2 F 9.9 4.7 ntu 50 0 Rain in morning
River before City                    
Storm System inlets                    
Site # 2 19-Dec-08 11:14 7.8 8.7 C 47.7 F 10.0 7.7 ntu 50 0  
River                    
near Casa de Lodi                    
Site # 5 19-Dec-08 12:00 8.5 8.8 C 47.8 F 12.6 11.3 ntu na na  
River at     B A   A B      
1050 N Lincoln                    
Site # 7 19-Dec-08 13:45 7.8 9.4 C 48.9 F 11.2 3.1 ntu 40 0  
River, near Gazebo     A A   A A A A  
N/O Lodi Lake                    
Site # 7A                 No Water in Lake
East end (S/o SD)                    
Lodi Lake                    
Site # 8 19-Dec-08 14:00 7.8 14.0 C 57.2 F 8.7 15.2 ntu 200 0 Lake drained, 
Lodi Lake     A B   B B B A Storm Drain pipe
near Storm Drain                   runoff only
Site # 9A 19-Dec-08 11:21 8.5 8.4 C 47.1 F 9.9 40.0 ntu 50 na  
River below WID     B A   B C A    
Dam at Bridge                    
NA = Not Analyzed
GRADE: pH   Temp D.O.     Turbidity TDS Nitrates
A 7.0 - 8.0   Weather > 85% Saturation < 5 < 150 < 1
B 6.5-6.9, 8.1-8.5 and   75-84% Sat.   5 - 20 151 - 300 2  -  3
C 6.0-6.4, 8.6-9.0 condition 65-74% Sat.   21 - 50 301 - 500 4  -  5
D 5.5-5.9, 9.1-9.5 dependent 55-64% Sat.   50 - 150 501 -1000 6  -  10 
F <5.5, >9.5       < 55%Sat.,<5.0mg/L > 150 > 1000 > 10