November 2002
Weather:  Windy, cloudy and some rain, 19.4 C (67 F)
Boards pulled from dam on Mokelumne River - end of irrigation season, river level dropped, lake mostly 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 8-Nov-02 15:40 7.0 16.0 C 60.8 F 8.6 6.4 ntu 50 0.01 litter on portion of 
River before City A A A B A A beach that used to 
Storm System inlets be under water
Site # 2 8-Nov-02 16:25 7.0 15.9 C 60.6 F 8.5 6.5 ntu 50 0.01 Water cloudy and 
River A A A B A A litter observed
near Casa de Lodi
Site # 3 8-Nov-02 15:49 7.1 16.3 C 61.3 F 9.6 12 ntu 50 0 Water cloudy
River at A A A B A A
Mokelumne River Dr.
Site # 4 8-Nov-02 16:00 7.4 17.7 C 63.9 F 8.1 40 ntu 60 na Water cloudy and 
River at "Scenic A B A C A litter observed
Overlook" Awani Dr.
Site # 5 8-Nov-02 15:48 7.4 15.5 C 59.9 F 7.8 14 ntu 50 0 Water cloudy
River, Glen Beach A A B B A A
Edgewood Dr.
Site # 6 8-Nov-02 15:23 7.5 15.8 C 60.4 F 7.5 19 ntu 40 0.02 Water cloudy
River, N/O A A B B A A
Pigs Lake
Site # 7 8-Nov-02 15:50 6.4? 16.9 62.4 F 9.3 27 ntu 50 0 20 ft from shore, 
River, near Gazebo C A A C A A muddy with 
N/O Lodi Lake debris (leaves)
Site # 7A 8-Nov-02 15:35 6.3? 19.4 C 66.9 F 8.3 109 ntu 60 0 30 ft from shore, 
East end (S/o SD) C B A D A A muddy with 
Lodi Lake debris (leaves)
Site # 8 8-Nov-02 13:21 7.1 16.9 C 62.4 F 8.1 76 ntu 50 0.3 Water cloudy and 
Lodi Lake above A A B D A A litter observed
last Storm Drain
Site # 9 8-Nov-02 14:00 7.3 16.4 C 61.5 F 7.4 20 ntu 50 0 Salmon sighted just
River at A A B B A A below dam!
WID Dam Some litter & cloudiness
Beckman Storm 8-Nov-02 11:45 6.4 17.6 C 63.7 F 8.5 29 ntu 80 na First significanr rain
Pumping Station: C A A C A event started appx.
First Rain six hours earlier.
City Storm Drain 8-Nov-02 12:00 6.1 17.1 C 62.8 F 7.3 41 ntu 60 na (same as above)
#1 at River: C A B C A Storm water only from
First Rain drain pipe.
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

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