National Water-Quality Assessment (NAWQA) Project
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U.S. GEOLOGICAL SURVEY
Water-Resources Investigations Report 98-4222
Sacramento, California, 1999
Table 7. Load of total herbicides and insecticides and selected individual pesticides in streams as a percentage of agricultural use in the basin
[For some sites, data are shown for more than 1 year. Percentages were calculated only for compounds with use of 100 or more kilograms in the drainage basin. Agricultural use data from Gianessi and Anderson, 1996. kg, kilograms; , use in basin was less than 100 kilograms]
Site code |
Start of 1-year period |
End of 1-year period |
Use, in kilograms |
Load, in kilograms |
Load as a percentage of agricultural use in basin |
||||||||||
Total herbicides |
Total insecticides |
Total herbicides |
Total insecticides |
Total herbicides |
Total insecticides |
Atrazine |
Cyanazine |
EPTC |
Metolachlor |
Trifluralin |
Carbaryl |
Carbofuran |
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AGRICULTURAL BASINS |
|||||||||||||||
lsus-mill |
3/93 |
3/94 |
13,000 |
1,400 |
50.6 |
0.33 |
0.39 |
0.02 |
0.30 |
0.03 |
-- |
0.10 |
-- |
0.06 |
0.00 |
lsus-mill |
9/93 |
9/94 |
13,000 |
1,400 |
92.7 |
0.50 |
0.72 |
0.04 |
0.41 |
0.05 |
-- |
0.19 |
-- |
0.09 |
0.00 |
cnbr-prairie |
4/93 |
3/94 |
40,000 |
8,500 |
100 |
2.5 |
0.25 |
0.03 |
0.37 |
0.02 |
0.00 |
0.29 |
0.00 |
0.08 |
0.22 |
wmic-duck |
3/93 |
9/93 |
14,000 |
1,900 |
283 |
0.44 |
2.07 |
0.02 |
3.29 |
1.15 |
0.18 |
3.18 |
0.02 |
-- |
0.00 |
wmic-duck |
3/94 |
9/94 |
14,000 |
1,900 |
26 |
0.14 |
0.19 |
0.01 |
0.37 |
0.14 |
0.01 |
0.24 |
0.00 |
-- |
0.08 |
hdsn-canaj |
3/94 |
3/95 |
2,300 |
1,000 |
15.0 |
0.58 |
0.65 |
0.06 |
1.25 |
0.13 |
0.08 |
0.69 |
-- |
-- |
-- |
poto-muddy |
4/93 |
4/94 |
740 |
230 |
7.0 |
0.01 |
0.95 |
0.00 |
1.26 |
-- |
-- |
1.46 |
-- |
-- |
-- |
cnbr-shell |
4/93 |
3/94 |
88,000 |
18,000 |
447 |
18 |
0.51 |
0.10 |
0.70 |
1.18 |
0.01 |
0.19 |
0.04 |
0.16 |
0.91 |
whit-kess |
3/93 |
3/94 |
21,000 |
1,400 |
366 |
1.8 |
1.76 |
0.13 |
1.63 |
5.13 |
0.05 |
1.83 |
0.03 |
0.27 |
0.53 |
whit-kess |
3/94 |
3/95 |
21,000 |
1,400 |
261 |
5.7 |
1.26 |
0.42 |
1.74 |
0.77 |
0.03 |
1.45 |
0.01 |
0.00 |
2.80 |
whit-sugar |
5/92 |
5/93 |
33,000 |
1,800 |
256 |
3.5 |
0.77 |
0.19 |
1.17 |
0.40 |
0.00 |
0.63 |
0.13 |
-- |
0.10 |
whit-sugar |
1/93 |
12/93 |
33,000 |
1,800 |
153 |
2.0 |
0.46 |
0.11 |
0.83 |
0.10 |
0.02 |
0.39 |
0.05 |
-- |
0.04 |
whit-sugar |
1/94 |
11/94 |
33,000 |
1,800 |
176 |
0.00 |
0.53 |
0.00 |
0.85 |
0.20 |
0.04 |
0.83 |
0.00 |
-- |
0.00 |
albe-pete |
3/93 |
3/94 |
1,700 |
900 |
4.1 |
0.14 |
0.24 |
0.02 |
0.42 |
-- |
-- |
0.32 |
0.02 |
-- |
-- |
lsus-eastm |
3/93 |
3/94 |
2,600 |
310 |
29.7 |
0.64 |
1.13 |
0.20 |
1.16 |
0.98 |
-- |
1.03 |
-- |
-- |
-- |
lsus-eastm |
9/93 |
9/94 |
2,600 |
310 |
55.7 |
4.1 |
2.11 |
1.31 |
2.23 |
2.42 |
-- |
2.06 |
-- |
-- |
-- |
poto-mono |
3/94 |
3/95 |
17,000 |
9,600 |
155 |
2.4 |
0.91 |
0.02 |
1.12 |
0.48 |
-- |
0.90 |
0.00 |
0.15 |
0.03 |
splt-lone |
4/93 |
3/94 |
21,000 |
9,700 |
122 |
5.2 |
0.58 |
0.05 |
0.13 |
0.74 |
0.34 |
0.37 |
0.02 |
-- |
0.30 |
acfb-lime |
3/93 |
3/94 |
5,500 |
3,500 |
4.9 |
0.48 |
0.09 |
0.01 |
0.08 |
0.03 |
-- |
0.04 |
0.00 |
0.00 |
0.00 |
acfb-lime |
7/93 |
7/94 |
5,500 |
3,500 |
8.6 |
0.10 |
0.16 |
0.00 |
0.05 |
1.07 |
-- |
0.00 |
0.07 |
0.00 |
0.00 |
trin-chamb |
1/94 |
1/95 |
28,000 |
12,000 |
1,369 |
7.1 |
4.95 |
0.06 |
9.94 |
0.07 |
-- |
5.30 |
0.03 |
0.00 |
0.00 |
ccpt-crab.rl |
4/93 |
4/94 |
2,700 |
2,600 |
12 |
2.8 |
0.47 |
0.11 |
0.48 |
-- |
0.32 |
0.11 |
0.09 |
0.22 |
0.01 |
usnk-rock |
4/93 |
4/94 |
8,000 |
3,400 |
3.3 |
0.22 |
0.04 |
0.01 |
0.74 |
0.00 |
0.01 |
0.05 |
0.00 |
-- |
0.00 |
ccpt-palouse |
3/93 |
3/94 |
76,000 |
11,000 |
57 |
3.8 |
0.07 |
0.04 |
-- |
-- |
0.00 |
0.01 |
0.00 |
-- |
0.00 |
redn-turtle |
3/93 |
3/94 |
16,000 |
3,700 |
0.7 |
0.49 |
0.00 |
0.01 |
-- |
0.01 |
0.00 |
0.01 |
0.00 |
0.00 |
0.06 |
usnk-teton |
5/93 |
5/94 |
22,000 |
17,000 |
7.6 |
0.95 |
0.03 |
0.01 |
-- |
-- |
0.02 |
0.00 |
0.00 |
-- |
0.00 |
gafl-tucsa |
3/93 |
3/94 |
15,000 |
7,600 |
5.1 |
0.83 |
0.03 |
0.01 |
0.08 |
0.00 |
-- |
0.15 |
0.00 |
0.05 |
0.01 |
gafl-tucsa |
1/94 |
1/95 |
15,000 |
7,600 |
15.6 |
0.29 |
0.11 |
0.00 |
0.04 |
0.14 |
-- |
0.22 |
0.00 |
0.03 |
0.00 |
albe-devils |
3/93 |
2/94 |
300 |
230 |
1.9 |
0.04 |
0.65 |
0.02 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
AGRICULTURAL BASINSCONTINUED |
|||||||||||||||
ccpt-crab.m |
4/93 |
4/94 |
3,500 |
1,600 |
1.1 |
0.06 |
0.03 |
0.00 |
-- |
-- |
0.00 |
-- |
-- |
-- |
-- |
ccpt-el68 |
4/93 |
4/94 |
2,900 |
3,000 |
59 |
46 |
2.05 |
1.57 |
-- |
-- |
0.42 |
0.36 |
0.61 |
-- |
1.70 |
redn-snake |
5/93 |
5/94 |
5,800 |
1,900 |
2.0 |
1.3 |
0.03 |
0.07 |
0.33 |
0.06 |
0.01 |
0.05 |
0.00 |
-- |
0.34 |
redn-wildr |
3/93 |
3/94 |
21,000 |
2,900 |
41 |
0.00 |
0.19 |
0.00 |
1.14 |
0.50 |
0.01 |
0.02 |
0.03 |
-- |
0.00 |
acfb-aycocks |
3/93 |
3/94 |
11,000 |
7,000 |
2.6 |
0.09 |
0.02 |
0.00 |
0.00 |
0.00 |
-- |
0.00 |
0.00 |
0.00 |
0.00 |
will-pudding |
4/93 |
4/94 |
39,000 |
11,000 |
284 |
37.6 |
0.73 |
0.33 |
4.65 |
-- |
0.07 |
0.65 |
0.01 |
0.01 |
-- |
will-zollner |
4/93 |
4/94 |
1,600 |
450 |
21.7 |
6.3 |
1.36 |
1.41 |
6.91 |
-- |
0.09 |
1.39 |
-- |
-- |
-- |
sanj-merced |
1/93 |
1/94 |
15,000 |
28,000 |
55 |
37.9 |
0.38 |
0.14 |
0.14 |
0.00 |
0.98 |
0.45 |
0.03 |
0.91 |
0.17 |
sanj-orest |
4/92 |
4/93 |
600 |
1,300 |
14 |
7.2 |
2.27 |
0.54 |
-- |
-- |
0.39 |
-- |
-- |
-- |
-- |
sanj-orest |
12/92 |
11/93 |
600 |
1,300 |
18 |
59.2 |
3.06 |
4.50 |
-- |
-- |
0.32 |
-- |
-- |
-- |
-- |
ozrk-dous |
2/94 |
10/94 |
150 |
-- |
0.71 |
1.2 |
0.47 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
ozrk-yocum |
2/94 |
11/94 |
-- |
-- |
0.26 |
0.01 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
INTEGRATOR BASINS |
|||||||||||||||
hdsn-moh |
3/94 |
3/95 |
68,000 |
29,000 |
375 |
9.8 |
0.56 |
0.03 |
0.82 |
0.20 |
0.00 |
0.74 |
0.00 |
0.00 |
0.00 |
poto-shen |
3/93 |
3/94 |
100,000 |
43,000 |
733 |
0.0 |
0.73 |
0.00 |
0.93 |
0.62 |
0.00 |
0.80 |
0.21 |
0.00 |
0.00 |
albe-tar |
3/93 |
3/94 |
110,000 |
76,000 |
87 |
8.7 |
0.08 |
0.01 |
0.12 |
0.00 |
-- |
0.12 |
0.00 |
0.07 |
0.00 |
whit-white |
5/92 |
5/93 |
2,400,000 |
140,000 |
18,266 |
218 |
0.75 |
0.15 |
1.05 |
0.53 |
0.02 |
0.85 |
0.05 |
0.32 |
0.09 |
whit-white |
3/93 |
3/94 |
2,400,000 |
140,000 |
28,979 |
198 |
1.20 |
0.14 |
1.75 |
1.24 |
0.02 |
1.10 |
0.02 |
0.18 |
0.08 |
whit-white |
4/94 |
3/95 |
2,400,000 |
140,000 |
25,356 |
65 |
1.05 |
0.05 |
1.61 |
0.68 |
0.01 |
1.19 |
0.02 |
0.00 |
0.00 |
redn-rr.fargo |
4/94 |
3/95 |
620,000 |
64,000 |
533 |
1.9 |
0.09 |
0.00 |
0.37 |
0.25 |
0.15 |
0.06 |
0.01 |
0.00 |
0.07 |
redn-rr.em |
4/93 |
4/94 |
1,800,000 |
330,000 |
1,439 |
185 |
0.08 |
0.06 |
1.03 |
0.42 |
0.03 |
0.10 |
0.00 |
0.00 |
0.45 |
cnbr-platte |
4/93 |
3/94 |
4,200,000 |
850,000 |
26,533 |
422 |
0.63 |
0.05 |
0.98 |
0.98 |
0.01 |
0.35 |
0.02 |
0.09 |
0.25 |
sanj-sanj |
1/93 |
12/93 |
200,000 |
390,000 |
475 |
512 |
0.24 |
0.13 |
0.36 |
0.32 |
0.16 |
0.43 |
0.02 |
0.17 |
0.11 |
median |
0.52 |
0.04 |
0.83 |
0.25 |
0.02 |
0.36 |
0.02 |
0.05 |
0.02 |
||||||
mean |
0.76 |
0.25 |
1.29 |
0.57 |
0.11 |
0.68 |
0.04 |
0.11 |
0.22 |