Lodi Citizen's Monitoring - Lodi, California
March 2009
Weather: Clear/sunny temperature 21.2 C (70.2 F) Last rain 3-04-09
date Water had some olive-brown color, and algae reported.
13-Mar-09 River level down, dam lowered, Lodi Lake "drained"
            Dissolved   (TDS) Nitrate,  
0       Water Oxygen Turbidity Conduct. as mg/L  
Test Site Date Time  pH Temperature mg/L NTU uS Nitrogen Remarks
Site #1 13-Mar-09 12:25 7.6 12.6 C 54.7 F 10.4 3.6 ntu 50 0  
River before City     A A   A A A A  
Storm System inlets                    
Site # 2 13-Mar-09 12:43 7.8 11.9 C 53.4 F 10.1 4.2 ntu 50 0  
River     A A   A A A A  
near Casa de Lodi                    
Site # 5 13-Mar-09 15:30 6.7 13.0 C 55.4 F 10.8 9.9 ntu 50 na  
River at     B A   A B A    
1050 N Lincoln                    
Site # 7 13-Mar-09 15:15 8.8 12.6 C 54.7 F 11.4 2.2 ntu 40 0 water temp/DO suspect-supersaturated 
River, near Gazebo     C A   A A A A
N/O Lodi Lake                  
Site # 7A                    
East end (S/o SD)                    
Lodi Lake                    
Site # 8                    
Lodi Lake                    
near Storm Drain                    
Site # 9A 13-Mar-09 15:00 7.3 13.2 C 55.8 F 9.6 9.6 ntu 50 na  
River below WID     A A   A B A    
Dam at Bridge                    
Weather: Clear, Light Breeze, temperature 24.0 C (75.1 F)
date Water had some green and olive-brown color.
27-Mar-09 River level up, dam in place, Lodi Lake filled- 3/17/09
            Dissolved   (TDS) Nitrate,  
        Water Oxygen Turbidity Conduct. as mg/L  
Test Site Date Time  pH Temperature mg/L NTU uS Nitrogen Remarks
Site #1                    
River before City                    
Storm System inlets                    
Site # 2                    
River                    
near Casa de Lodi                    
Site # 5 27-Mar-09 16:14 7.8 17.6 C 63.7 F 9.8 2.8 ntu 40 0  
River at     A A   A A A A  
1050 N Lincoln                    
Site # 7 27-Mar-09 15:16 8.4 17.8 C 64.0 F na 3.2 ntu 40 0 D.O. Meter trouble, people fishing in area
River, near Gazebo     B A     A A A
N/O Lodi Lake                  
Site # 7A 27-Mar-09 16:54 8.2 19.7 C 67.5 F 9.3 2.7 ntu 50 na  
East end (S/o SD)     B A   A A      
Lodi Lake                    
Site # 8                    
Lodi Lake                    
near Storm Drain                    
Site # 9A 27-Mar-09 16:32 8.6 15.3 C 59.5 F na 5.6 ntu 40 0 litter, graffiti
River below WID     C A     B A 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