Table 3. Stream sampling sites analyzed for selected
antibiotic compounds (Method 2) in 1999 and 2000
[All concentrations are in micrograms per liter. <, less than indicated detected limit; E, estimated; --, data not collected; Number in parentheses () is the Chemical Abstracts Service Registry Number] |
Site code | Date (month-day-year) | Time (24-hour) | Type of sample | Chlortetracycline (57-62-5) | Oxytetracycline (79-57-2) | Sulfachloropyridazine (80-32-0) | Sulfadimethoxine (122-11-2) | Sulfamerazine (127-79-7) | Sulfamethazine (57-68-1) | Sulfathiazole (72-14-0) | Tetracycline (60-54-8) |
---|---|---|---|---|---|---|---|---|---|---|---|
AR02 |
05-02-99
|
1630
|
regular
|
<0.20
|
<0.20
|
<0.05
|
<0.05
|
<0.05
|
<0.05
|
<0.05
|
<0.20
|
AR06 |
05-04-99
|
2050
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
AZ01 |
06-29-00
|
1115
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
AZ02 |
06-27-00
|
1625
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
AZ03 |
06-29-00
|
0710
|
do.
|
<.10
|
<.10
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.10
|
AZ04 |
06-27-00
|
1035
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
CA01 |
05-18-00
|
1130
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
CA02 |
06-28-00
|
1300
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
CA03 |
08-16-00
|
1700
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
CA04 |
08-09-00
|
1700
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
CA05 |
04-15-99
|
1700
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
CA06 |
04-11-99
|
0715
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
CA07 |
09-21-99
|
1110
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
CA08 |
09-21-99
|
1600
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
CA09 |
09-22-99
|
1120
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
CA10 |
09-22-99
|
1320
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
CO01 |
04-21-99
|
1250
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
DE01 |
05-23-99
|
1130
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
DE01 |
05-23-99
|
1140
|
duplicate
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
FL01 |
08-28-00
|
1215
|
regular
|
<.10
|
.34
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.10
|
FL02 |
08-23-00
|
1215
|
do.
|
<.10
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.10
|
GA01 |
05-26-99
|
1400
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
GA02 |
05-25-99
|
1130
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
GA03 |
05-25-99
|
1030
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
GA04 |
05-25-99
|
0840
|
do.
|
<.10
|
<.10
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.10
|
GA05 |
05-26-99
|
1130
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
GA06 |
05-24-99
|
1215
|
do.
|
.15
|
<.10
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
.11
|
GA07 |
05-24-99
|
1420
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
IA01 |
09-13-00
|
1600
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
IA02 |
09-12-00
|
1200
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
IA04 |
09-11-00
|
1700
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
IA05 |
04-05-99
|
1445
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
IA07 |
04-08-99
|
1000
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
IA08 |
04-06-99
|
0935
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
IA09 |
04-06-99
|
1245
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
IA10 |
04-04-99
|
2000
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
IA11 |
04-03-99
|
1855
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
IA12 |
04-03-99
|
1245
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
ID01 |
08-14-00
|
1110
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
ID02 |
08-15-00
|
1250
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
ID03 |
08-16-00
|
1222
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
ID04 |
05-17-00
|
1215
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
IL01 |
05-13-99
|
1300
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
IL02 |
05-17-99
|
1420
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
IL03 |
05-19-99
|
1400
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
IL04 |
05-19-99
|
1240
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
IL05 |
05-20-99
|
0810
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
IL06 |
05-17-99
|
1230
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
IL07 |
05-13-99
|
1710
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
LA01 |
04-19-99
|
1130
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
MA01 |
05-12-99
|
0840
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
MA02 |
07-25-00
|
0630
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
MA03 |
07-25-00
|
0750
|
blank
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
MA03 |
07-25-00
|
0800
|
regular
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
MA03 |
07-25-00
|
0810
|
duplicate
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
MA04 |
07-25-00
|
0900
|
regular
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
MA05 |
07-25-00
|
1100
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
MA06 |
07-25-00
|
1010
|
do.
|
<.10
|
<.10
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.10
|
MA07 |
07-25-00
|
1130
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
MD01 |
09-17-99
|
0930
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
MD02 |
05-19-99
|
1710
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
MI01 |
06-15-99
|
1030
|
do.
|
<.10
|
<.10
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.10
|
MI02 |
06-15-99
|
1430
|
do.
|
<.10
|
<.10
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.10
|
MI03 |
06-16-99
|
1045
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
MN03 |
10-03-00
|
1105
|
blank
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
MN03 |
10-03-00
|
1115
|
regular
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
MN04 |
07-13-99
|
1300
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
MO01 |
05-06-99
|
1130
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
MO02 |
04-29-99
|
1245
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
MO03 |
04-30-99
|
0830
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
MO04 |
04-30-99
|
1300
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
MO05 |
05-15-99
|
1315
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
MO06 |
04-07-99
|
0845
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
MO07 |
04-05-99
|
1530
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
MO08 |
04-07-99
|
0840
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
MT01 |
03-16-00
|
1040
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
MT02 |
03-16-00
|
1400
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
MT03 |
03-17-00
|
1100
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
MT04 |
03-06-00
|
1400
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
MT05 |
03-22-00
|
1130
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
NC01 |
05-06-99
|
1015
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
NC02 |
05-06-99
|
1230
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
NC03 |
05-06-99
|
1430
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
NC04 |
05-06-99
|
1545
|
do.
|
.69
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
NC05 |
05-13-99
|
1245
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
NE01 |
06-24-99
|
1330
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
NE02 |
06-15-99
|
1730
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
NE03 |
06-14-99
|
1600
|
do.
|
<.20
|
<.20
|
<.05
|
.06
|
<.05
|
.22
|
<.05
|
<.20
|
NE04 |
06-15-99
|
1700
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
NE05 |
06-03-99
|
1230
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
NE06 |
06-04-99
|
1030
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
NE07 |
06-17-99
|
1130
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
NJ01 |
06-01-99
|
1020
|
do.
|
<.10
|
<.10
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.10
|
NJ02 |
05-27-99
|
1330
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
NJ03 |
05-27-99
|
1550
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
NJ04 |
05-27-99
|
1120
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
NY01 |
03-28-00
|
1310
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
NY02 |
08-08-00
|
1150
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
NY03 |
08-23-00
|
1340
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
NY04 |
08-08-00
|
1100
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
NY05 |
08-08-00
|
1300
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
NY06 |
08-08-00
|
1500
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
NY07 |
08-08-00
|
1410
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
NY07 |
08-08-00
|
1415
|
duplicate
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
NY08 |
08-30-00
|
1430
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
NY09 |
08-10-00
|
1215
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
NY10 |
08-10-00
|
1120
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
NY11 |
08-10-00
|
1609
|
blank
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
NY11 |
08-10-00
|
1625
|
regular
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
NY12 |
08-10-00
|
1515
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
OH01 |
05-18-99
|
1330
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.2
|
<.20
|
OH02 |
05-24-99
|
1015
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.2
|
<.20
|
OH03 |
05-06-99
|
1045
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.2
|
<.20
|
OH04 |
05-06-99
|
1340
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.2
|
<.20
|
OH05 |
05-20-99
|
1000
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.2
|
<.20
|
OH06 |
05-24-99
|
1245
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.2
|
<.20
|
OH07 |
06-02-99
|
1145
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.2
|
<.20
|
OH08 |
06-14-99
|
1120
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.2
|
<.20
|
OK01 |
05-13-99
|
1315
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.2
|
<.20
|
OK03 |
05-03-99
|
1045
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.2
|
<.20
|
OK04 |
05-24-99
|
1300
|
do.
|
<.10
|
<.10
|
<.05
|
<.05
|
<.05
|
<.05
|
<.2
|
<.10
|
OR02 |
07-10-00
|
1400
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
OR03 |
06-03-00
|
1030
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
OR04 |
07-24-00
|
1130
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
PA01 |
05-24-99
|
1030
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
PA02 |
06-08-99
|
1120
|
do.
|
<.10
|
<.10
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.10
|
PA03 |
05-27-99
|
1520
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
PA04 |
05-27-99
|
1000
|
do.
|
<.10
|
<.10
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.10
|
PA05 |
05-27-99
|
1150
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
TX01 |
08-09-99
|
0830
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
UT01 |
06-14-99
|
1140
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
VA01 |
08-01-00
|
1500
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
WA01 |
07-19-00
|
0930
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
WA02 |
05-18-99
|
1530
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
WA03 |
05-14-99
|
1530
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
WA04 |
05-06-99
|
1050
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
WA05 |
05-14-99
|
1200
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
WA06 |
03-29-00
|
1000
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
WI01 |
04-23-99
|
0955
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
WI02 |
04-23-99
|
0910
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
WI03 |
05-17-99
|
1230
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
WI04 |
04-23-99
|
1450
|
do.
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
WI05 |
04-23-99
|
1115
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
WI06 |
04-23-99
|
1330
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|
WI07 |
04-23-99
|
0820
|
do.
|
<.20
|
<.20
|
<.05
|
<.05
|
<.05
|
<.05
|
<.05
|
<.20
|