TCEQ Station ID #12626: San Marcos River at Luling Water Treatment Plant
TCEQ Station ID #12640: Plum Creek at CR 135 SE of Luling
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Clicking on the site number will take you to a table of sites with locations, parameters and frequency of analysis.
Below the table is a legend defining the abbreviations used in the table.
| Guadalupe River Basin Surface Water Quality Monitoring Program - GBRA Monitoring Locations - 2005-06 |
| 12626 |
San Marcos River at Luling Water Treatment Plant |
29°40'02" / 97°39'14" |
Caldwell |
C/Monthly; F/Monthly; M/Annually; BAC/Monthly; O/Annual |
Fixed/GBRA |
View Data |
| 12640 |
Plum Creek at CR 135 SE of Luling |
29°39'25" / 97°36'00" |
Caldwell |
C/Monthly; F/Monthly; BAC/Monthly; O/Annual |
Fixed/GBRA |
View Data |
| 12645 |
Plum Creek at CR 197 Between Lockhart and Luling |
29°49'16" / 97°35'02" |
Caldwell |
N/A |
GBRA |
View Data |
| 12647 |
Plum Creek at CR 202, SE of Lockhart |
28°28'36" / 96°51'48" |
Caldwell |
AC/Annual; RN/Annual; RB/Annual |
GBRA |
No data available at this time |
| Guadalupe River Basin Surface Water Quality Monitoring Program - TCEQ Monitoring Locations |
| 12647 |
Plum Creek at CR 202, SE of Lockhart |
28°28'36" / 96°51'48" |
Caldwell |
C/Quarterly; BAC/Quarterly; F/Quarterly |
Fixed/TCEQ |
TCEQ |
Legend
The C symbol represents the following parameters and their TCEQ codes: 00010, Temperature, Water (Centigrade); 00094 Conductivity, Field (mmhos/cm @ 25C); 00300 Oxygen, Dissolved (mg/L); 00400 pH (standard units); 00631 Nitrate/Nitrite-Nitrogen (mg/L as N); 00665 Total Phosphorus (mg/L as P); 00530 Solids, Total Suspended (mg/L); 82079 Turbidity (NTU); 00945 Sulfate (mg/L); 00940 Chloride (mg/L); 32211 Chlorophyll-a (mg/L); 00900 Total Hardness (mg/L); and 31648 E. coli (#/100 mL).
The F symbol means that a flow measurement will be provided. When possible, this information will be derived from U.S. Geological stream gages; at some sites, the proximity of a hydroelectric generating facility allows the calculation of flow based upon power generated; at the remainder of the sites field measurements will be made by GBRA Regional Laboratory personnel or UGRA personnel.
The M symbol denotes metals. All M samples will be collected by the GBRA. The dissolved metals to be analyzed for are 01106 Aluminum (mg/L as Al); 01090 Zinc (mg/L as Zn); 01000 Arsenic (mg/L as As); 00915 Calcium (mg/L as Ca); 01025 Cadmium (mg/L as Cd); 00925 Magnesium (mg/L as Mg); 46570 Hardness, calc, (mg/L as CaCO3); 01005 Barium (mg/L as Ba); 01030 Chromium (mg/L as Cr); 01040 Copper (mg/L as Cu); 01046 Iron (mg/L as Fe); 01049 Lead (mg/L as Pb); 01056 Manganese (mg/L as Mn); 01065 Nickel (mg/L as Ni); 01060 Molybdenum (mg/L as Mo); 01145 Selenium (mg/L as Se); 71890 Mercury, total (mg/L as Hg); and 01075 Silver (mg/L as Ag).
AC means Aquatic Commun-Habitat.
RN means Routine Nekton.
N/A means not active. The station is not being monitored.
RB means Routine Benthics.
FT means Fish Tissue.
BAC means TSWQS Bacteria sampling.
O means organics in water.
D024 means dissolved oxygen measurements over a 24 hour period.