Lodi Citizen's Monitoring - Lodi, California        
May, 2002                  
                   
Weather: Sunny with some clouds, Breeze, 74oF (29 oC)      
  Water level up 1 - 2 feet from April, Lodi Lake full.      
            Dissolved   (TDS)  
        Water Oxygen Turbidity Conduct.  
Test Site Date Time  pH Temperature mg/L NTU uS Remarks
Site #1 10-May-02 15:25 7.1 14.7 C 58.5 F 14.1 3.9 ntu 50 water level
River before City     A A   A A A 2' higher
Storm System inlets                 than April
Site # 2 10-May-02 15:55 7.1 14.5 C 58.1 F 14.1 3.0 ntu 40 leaves on
River     A A   A A A surface
near Casa de Lodi                  
Site # 3 10-May-02 15:52 8.2 15.9 C 60.6 F 9.8 9.4 ntu NA  
River at     B A   A B    
Mokelumne River Dr.                  
Site # 4 10-May-02 16:07 8.0 15.7 C 60.3 F 9.3 5.6 ntu NA  
River at "Scenic     A A   A B    
Overlook" Awani Dr.                  
Site # 5 10-May-02 15:51 7.1 15.7 C 60.3 F Not 4.1 ntu 40 Jet Ski
River, Glen Beach     A A   recorded A A Activity,
Edgewood Dr.                 boating
Site # 6 10-May-02 15:25 6.9 15 C 59.0 F 9.4 4.0 ntu 40 Jet Ski
River, N/O     B A   A A A Activity
Pigs Lake                  
Site # 7 10-May-02 12:35 8.6 17.1 C 62.8 F 7.9 3.9 ntu 30 Water Traffic,
River, near Gazebo     B A   B A A stirring up
N/O Lodi Lake                 sediment
Site # 8 10-May-02 12:50 8.2 18.9 C 66.0 F 8.3 8.7 ntu 30 Dog's
Lodi Lake above     B B   A B A swimming
last Storm Drain                 in area
Site # 9 10-May-02 13:10 8.0 17.3 C 63.1 F 8.4 2.1 ntu 30  
River at     A A   A A A  
WID Dam                  
NA = Not Analyzed (equipment problems)            
GRADE: pH Temp   D.O.     Turbidity TDS
A 7.0 - 8.0 Weather > 85% Saturation   < 5 < 150
B 6.5-6.9, 8.1-8.5 and   75-84% Sat.   5 - 20 151 - 300
C 6.0-6.4, 8.6-9.0 condition 65-74% Sat.   21 - 50 301 - 500
D 5.5-5.9, 9.1-9.5 dependent 55-64% Sat.   50 - 150 501 -1000
F <5.5, >9.5     < 55%Sat.,<5.0mg/L   > 150 > 1000

Sample Location Key

(All in Mokelumne River Except Site 8.)

1: Cluff Ave. Near the Solid Waste Transfer Station, 50' above first City of Lodi Storm Drain.

2: Near Casa de Lodi, 50' above City Storm Drain #3

3: Mokelumne River Dr. at Awani, above City Storm Drain #4

4: "Scenic Overlook" Beach, 50' above City Storm Drain #6

5: Willow Glenn Beach, 50' below City Storm Drain #8, 100' above Drain #10.

6: Pig's Lake Beach, 50' below City Storm Drain #10

7: Mokelumne River north of Lodi Lake Gazebo area, 50' above City Storm Drain #11

7A: Lodi Lake, SE End of Lake

8: In Lodi Lake at City Storm Drain #16

9: Mokelumne River, 50' above Woodbridge (WID) Dam