Lodi Citizen's Monitoring - Lodi, California
July 2009
Weather: Calm, sunny (22.3C/ 72.1F) Last rain: June 4
date Visual Observations: 
10-Jul-09 River level up, dam raised, Mokelumne River impounded, Lodi Lake filled-3-17-09
            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 10-Jul-09                  
River before City                   no data
Storm System inlets                   available
Site # 2 10-Jul-09                 no data available
River                  
near Casa de Lodi                  
Site # 5 10-Jul-09                 no data available
River at                  
1050 N Lincoln                  
Site # 7 10-Jul-09 16:50 7.6 N/A N/A 8.7 n/a 50 N/A new team- problems with calibration
River, near Gazebo     A     A   A  
N/O Lodi Lake                  
Site # 7A 10-Jul-09                 no data available
East end (S/o SD)                  
Lodi Lake                  
Site # 8 10-Jul-09                 no data available
Lodi Lake                  
near Storm Drain                  
Site # 9A 10-Jul-09                  
River below WID                   no data 
Dam at Bridge                   available
Weather: Clear, Sunny, Calm- temperature 31.8 C (89.2 F) Last rain: June 4
Visual observations: No odor; no algae; foam- site 9-A; turbid- site 7; flow- low to med; litter- site 9-A; 
color of water- clear to brown.
24-Jul-09 River level up because of impoundment, 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 24-Jul-09 14:30 8.0 19.3 C 66.7 F 9.8 1.4 ntu 40 N/A  
River before City     A A   A B A    
Storm System inlets                    
Site # 2 24-Jul-09                 no data available
River                  
near Casa de Lodi                  
Site # 5 24-Jul-09                 no data available
River at                  
1050 N Lincoln                  
Site # 7 24-Jul-09 13:51 7.8 22.6 C 72.7 F 9.5 1.5 ntu 50 N/A DO meter seems high- supersaturated?
River, near Gazebo     A A   A A A  
N/O Lodi Lake                  
Site # 7A                   no data available
East end (S/o SD)                  
Lodi Lake                  
Site # 8 24-Jul-09                 no data available
Lodi Lake                  
near Storm Drain                  
Site # 9A 24-Jul-09 15:08 8.1 22.0 C 71.6 F 9.3 2.1 ntu 40 N/A DO meter seems high- supersaturated?
River below WID     B A   A 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