Lodi Citizen's Monitoring - Lodi, California
February 2009
Weather: Overcast, drizzle, temperature 9 C (48 F)
date Water had some olive-brown color, and algae reported.
13-Feb-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 13-Feb-09 12:45 8.0 10.3 C 50.5 F 10.6 2.5 ntu 50 0  
River before City     B A   A A A A  
Storm System inlets                    
Site # 2 13-Feb-09 13:06 8.0 9.7 C 49.5 F 10.3 4.8 ntu 50 0  
River     B A   A A A A  
near Casa de Lodi                    
Site # 5 13-Feb-09 14:09 6.4 11.0 C 51.8 F 11.1 8.3 ntu 50 na low pH is suspect - 
River at     C A   A B A   same team as # 9
1050 N Lincoln                    
Site # 7 13-Feb-09 15:00 9.0 9.2 C 48.6 F 10.9 8.8 ntu 40 0  
River, near Gazebo     C A   A B A A  
N/O Lodi Lake                    
Site # 7A                   No Water in Lake
East end (S/o SD)                    
Lodi Lake                    
Site # 8 13-Feb-09 15:55 8.6 10.0 C 50.0 F 10.3 12.2 ntu 100 0 Lake drained, 
Lodi Lake     C A   A B A A Storm Drain pipe
near Storm Drain                   runoff only
Site # 9A 13-Feb-09 13:57 6.0 9.7 C 49.5 F 11.8 8.4 ntu 50 na low pH is suspect - 
River below WID     C A   A B A   same team as # 5
Dam at Bridge                    
Weather: Clear, Light Breeze, temperature 15 C (59 F)
date Water had some green and olive-brown color.
27-Feb-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 27-Feb-09 12:19 7.6 13.5 C 56.3 F 10.3 3.1 ntu 50 0  
River before City     A A   A A A A  
Storm System inlets                    
Site # 2 27-Feb-09 12:41 7.7 11.8 C 53.2 F 10.0 3.5 ntu 50 0  
River     A A   A A A A  
near Casa de Lodi                    
Site # 5 27-Feb-09 15:20 7.6 12.6 C 54.7 F 11.4 59.4 ntu 50 na  
River at     A A   A D A    
1050 N Lincoln                    
Site # 7 27-Feb-09 15:35 8.2 14.6 C 58.3 F na 3.3 ntu 50 0.1 D.O. Meter having
River, near Gazebo     B A     A A A trouble
N/O Lodi Lake                    
Site # 7A                 No Water in Lake
East end (S/o SD)                    
Lodi Lake                    
Site # 8 27-Feb-09 16:17 8.3 17.9 C 64.2 F na 4.4 ntu 100 0.06 Storm Drain pipe only.
Lodi Lake     B B     A A A D.O. Meter having
near Storm Drain                   trouble
Site # 9A 27-Feb-09 15:00 8.0 12.7 C 54.9 F 9.8 20.3 ntu 60 na  
River below WID     B A   A 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