Table 4.3.1 Summary of Water Quality Monitoring


 
Site ID
 
Site Location/Description
 
Frequency of

Sampling
 
Sampling

Technique
 
Analytical Parameters
 
A
 
Inflow to San Luis Drain
 
Weekly
 
depth integrated grab
 
Se, Se(diss), B, EC, TSS
 
B
 
Discharge from San Luis Drain
 
Weekly

Daily

 
depth integrated grab

daily composite-autosampler
 
Se, Se(diss), B, EC, TSS

Se
 
C
 
Mud Slough(n) upstream of drainage discharges
 
Weekly
 
grab
 
Se, B, EC
 
D
 
Mud Slough(n) downstream of drainage discharges
 
Weekly

Daily

 
depth integrated grab

weekly composite-autosampler
 
Se, B, EC

Se
 
E
 
Mud Slough(n) at Hwy 140
 
bimonthly
 
grab
 
Se, B, EC
 
F
 
Salt Slough at Hwy 165
 
Weekly

Daily

 
depth integrated grab

weekly composite-autosampler
 
Se, B, EC

Se
 
G
 
SJR at Fremont Ford

(upstream of drainage discharges)

 
Weekly
 
grab
 
Se, B, EC
 
H
 
SJR at Hills Ferry (downstream of drainage discharges & upstream of Merced river)
 
Weekly
 
grab
 
Se, B, EC
 
I
 
Mud Slough(n) backwater
 
To be determined
 
grab
 
Se, B, EC
 
J
 
Camp 13 Ditch
 
Weekly
 
grab
 
Se, B, EC
 
K
 
Agatha Canal
 
Weekly
 
grab
 
Se, B, EC
 
L
 
San Luis Canal
 
Weekly
 
grab
 
Se, B, EC
 
M
 
Santa Fe Canal
 
Weekly
 
grab
 
Se, B, EC
 
N
 
SJR at Crows Landing

(downstream of Merced River confluence)

 
Daily

Weekly
 
daily composite - autosampler

grab
 
Se, B, EC

Se

Analytical Parameters: Se - Total selenium; Se(diss) - dissolved selenium; B - Boron;
EC - electrical conductivity at 25 degrees C; TSS - total suspended solids.

Depth integrated samples collected from mid-stream.

Samples collected with autosamplers are collected at a depth of 9-12 inches.

Grab samples are collected from stream bank, except for Crows Landing, which is collected away from stream bank.

SJR - San Joaquin River