Lodi Citizen's Monitoring - Lodi, California
May 2009
Weather: Light breeze/Clear/Sunny temperature 29.6 C (85.3 F) Last rain May 1- 4- season total: 13.42 "
date Water had some olive-brown color, and algae reported.
08-May-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 08-May-09 13:40 7.7 17.9 C 64.2 F 9.2 1.7 ntu 40 0
River before City A A A A A A
Storm System inlets
Site # 2 08-May-09 14:00 7.6 16.4 C 61.5 F 8.5 2.2 ntu 40 0
River A A A A A A
near Casa de Lodi
Site # 5 08-May-09 15:10 7.1 19 C 66.2 F 10.1 3.6 ntu 50 DO meter suspect
River at A A A A A
1050 N Lincoln
Site # 7 08-May-09 16:30 7.2 19.0 C 66.2 F 10.0 5.5 ntu 40 0 jet skiers in area
River, near Gazebo A A A B A A
N/O Lodi Lake
Site # 7A 08-May-09 16:00 7.6 21.5 C 70.7 F 10.3 7.4 ntu 40 0
East end (S/o SD) A A A B A A
Lodi Lake
Site # 8 08-May-09 no data available
Lodi Lake
near Storm Drain
Site # 9A 08-May-09 15:25 7.2 18.5 C 65.3 F 9.0 3.2 ntu 50
River below WID A A A A A
Dam at Bridge
Weather: Clear, Sunny, Calm- temperature 28.8 C (83.8 F) Last rain: 5-4-09- Season total: 13.42"
Water had some green and olive-brown color.
22-May-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 22-May-09 9:20 7.4 15.5 C 59.9 F 8.9 1.9 ntu 40 0
River before City A A A A A A
Storm System inlets
Site # 2 22-May-09 9:45 7.5 16.2 C 61.2 F 8.6 2.1 ntu 40 0
River A A A A A A
near Casa de Lodi
Site # 5 22-May-09 15:00 6.5 19.5 C 67.1 F 10.4 3.4 ntu 40 DO meter suspect
River at B A A A A
1050 N Lincoln
Site # 7 22-May-09 15:33 8.1 20.2 C 68.4 F 8.9 3.6 ntu 30 0
River, near Gazebo B A A A A A
N/O Lodi Lake
Site # 7A no data available
East end (S/o SD)
Lodi Lake
Site # 8 22-May-09 16:06 8.1 24.1 C 75.4 F 7.9 2.7 ntu 30 0 shaded area in lake near outfall
Lodi Lake B A A A A A
near Storm Drain
Site # 9A 22-May-09 15:16 7.1 18.4 C 65.1 F 11.2 2.7 ntu 40 DO meter suspect
River below WID A 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