Lodi Citizen's Monitoring - Lodi, California
January 2009
Weather: Clear, Sunny, temperature 13 C (55 F)
date Water had some olive-brown color, and algae reported.
09-Jan-09 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 09-Jan-09 12:15 8.0 9.7 C 49.5 F 10.9 4.9 ntu 50 0  
River before City     A A   A A A A  
Storm System inlets                    
Site # 2 09-Jan-09 12:50 7.5 9.0 C 48.2 F 10.9 4.2 ntu 50 0  
River     A A   A A A A  
near Casa de Lodi                    
Site # 5 09-Jan-09 15:10 8.1 9.0 C 48.2 F 7.2 7.4 ntu 40 na  
River at     B A   C B A    
1050 N Lincoln                    
Site # 7 09-Jan-09 15:40 7.9 9.2 C 48.6 F 11.6 2.4 ntu 70 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 09-Jan-09 16:15 7.8 13.9 C 57.0 F 9.4 2.5 ntu 460 0.2 Lake drained, 
Lodi Lake     A B   A A C A Storm Drain pipe
near Storm Drain                   runoff only
Site # 9A 09-Jan-09 15:00 8.1 9.1 C 48.4 F 7.6 7.4 ntu 40 na  
River below WID     B A   C B A    
Dam at Bridge                    
Weather: Rain, Overcast, temperature 14 C (56 F)
date Water had some olive-brown and green color.
23-Jan-09 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 23-Jan-09 9:44 7.5 8.1 C 46.6 F 10.9 2.1 ntu 50 0  
River before City     A A   A A A A  
Storm System inlets                    
Site # 2 23-Jan-09 10:04 7.3 8.5 C 47.3 F 10.5 2.5 ntu 50 0  
River     A A   A A A A  
near Casa de Lodi                    
Site # 5                    
River at                    
1050 N Lincoln                    
Site # 7 23-Jan-09 15:49 8.2 11.1 C 52.0 F 10.5 na 50 0  
River, near Gazebo     B A   A   A A  
N/O Lodi Lake                    
Site # 7A                  
East end (S/o SD)                    
Lodi Lake                    
Site # 8 23-Jan-09 16:29 7.9 13.8 C 56.8 F 10.5 na 40 0.1 Lake drained, 
Lodi Lake     A A   A   A A Storm Drain pipe
near Storm Drain                   runoff only
Site # 9A 23-Jan-09 14:50 7.5 10.5 C 50.9 F 11.3 16.8 ntu 40 na  
River below WID     A A   A B 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