Lodi Citizen's Monitoring - Lodi, California          
April 2003                    
                     
Weather: Cloudy/overcast, slight breeze, temperature 22 C (71 F)      
  Water had some cloudiness and some green/olive color reported.    
  Board in at Woodbridge dam 3/17/03. Lake filling, river high.      
            Dissolved   (TDS) Nitrate,  
        Water Oxygen Turbidity Conduct. as mg/L  
Test Site Date Time  pH Temperature mg/L NTU uS Nitrogen Remarks
Site #1 11-Apr-03 15:45 7.5 17.3 C 63.1 F 9.6 NA 40 0 Turbidity meter did not
River before City Grade:   A A   A   A A work
Storm System inlets                    
Site # 2 11-Apr-03 16:25 7.4 15.1 C 59.2 F 8.9 NA 40 0 Turbidity meter did not
River Grade:   A A   A   A A work.  Sample location
near Casa de Lodi                   E/O peninsula.
Site # 3 11-Apr-03 16:05 7.8 16.1 C 61.0 F 9.8 4.5 ntu 50 0  
River at Grade:   A A   A A A A  
Mokelumne River Dr.                    
Site # 4 11-Apr-03 16:50 8.0 16.6 C 61.9 F 10.4 5.5 ntu NA 0 Turbidity meter did not
River at "Scenic Grade:   A A   A B   A work properly
Overlook" Awani Dr.                    
Site # 5 11-Apr-03 16:00 7.6 15.1 C 59.2 F 10.2 6.6 ntu 40 NA?  
River, Glen Beach Grade:   A A   A B A    
Edgewood Dr.                    
Site # 6 11-Apr-03 15:40 7.6 15.7 C 60.3 F 10.8 2.2 ntu 40 0  
River, N/O Grade:   A A   A A A A  
Pigs Lake                    
Site # 7 11-Apr-03 15:40 7.1 17.2 C 63.0 F 10.3 4.2 ntu 40 0  
River, near Gazebo Grade:   A A   A A A A  
N/O Lodi Lake                    
Site # 7A 11-Apr-03 16:00 7.0 20.2 68.4 F 8.5 3.7 ntu 50 0 Lake nearly full.
East end (S/o SD) Grade:   A A   A A A A Lots of trash/weeds 
Lodi Lake                   floating in area.
Site # 8 11-Apr-03 13:10 6.4 18.8 C 65.8 F 6.1 4.4 ntu 50 0 Lake nearly full.
Lodi Lake above Grade:   C A   C A A A Low pH, problem with
last Storm Drain                   team's pH meter?
Site # 9 11-Apr-03 13:45 6.2 18.8 C 65.8 F 7.8 2.6 ntu 40 0 Low pH, problem with
River at Grade:   C A   B A A A team's pH meter?
WID Dam                    
NA = Not Analyzed (equipment problems)              
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