
Below is a list by segment of monitoring stations in the Rio Grande basin. Click on the station ID number to download an Excel format file that contains all of the available water quality data for that station from 1995 to present. The standards for an impairment in a water body are based on the use of the water body. A table of the uses by segment and the assessment criteria can be found by clicking here for an Excel table.
For a PDF file describing the monitoring parameters, click here
For a table displaying the laboratory measurement performance specifications, click here
For the FY2007 monitoring schedule for any basin in Texas CLICK HERE and then select your basin of choice from the map. The Rio Grande Basin is Basin 23
For dissolved metals data, click here for a single Excel file containing all of the data that we have for the entire basin by station ID.
CRP will be collecting organics in sediment data this year and will post the results here. For a brief presentation on organics in sediment collection, Click Here.
Segment 2301 - Rio Grande Tidal
| Station ID | Station Description |
| 13176 | Rio Grande Tidal at State Highway 2 near Boca Chica |
Segment 2302 - Rio Grande below Falcon Reservoir
| Station ID | Station Description |
| 10249 | Rio Grande 6.3 km downstream from San Benito pumping plant |
| 13103 | Arroyo Los Olmos Bridge on US 83 south of Rio Grande City |
| 13177 | Rio Grande below El Jardin at Brownsville |
| 13179 | Rio Grande near River Bend boat ramp, west of Brownsville |
| 13181 | Rio Grande at International Bridge |
| 13184 | Rio Grande at SH 886 near Los Ebanos |
| 13185 | Rio Grande at Fort Ringhold, 1 mi downstream of Rio Grande City |
| 13186 | Rio Grande below Rio Alamo near Fronton |
| 13187 | Rio Grande 2.5 mi below Falcon Dam at diversion structure |
| 13664 | Rio Grande 0.5 mi below Anzalduas dam, 12.2 mi from Hidalgo |
| 15808 | Rio Grande 200 m upstream of Pharr International Bridge |
| 17247 | Rio Grande 100 m upstream from the FM 1015 Bridge at Progresso |
Segment 2303 - International Falcon Reservoir
| Station ID | Station Description |
| 13189 | Falcon Lake at International Boundary Monument #1 |
| 13192 | Falcon Lake at International Boundary Monument #14 |
| 15818 | Falcon Reservoir at San Ygnacio WTP intake |
Segment 2304 - Rio Grande below International Amistad Reservoir
| Station ID | Station Description |
| 13116 | Manadas Creek at FM 1472 north of Laredo |
| 13194 | Rio Grande at the San Isidro Pump Station |
| 13196 | Rio Grande at pipeline crossing, 13.9 km below Laredo |
| 13201 | Rio Grande 30 m upstream of US 81 bridge in Laredo |
| 13202 | Rio Grande at Laredo WTP pump intake |
| 13205 | Rio Grande near irrigation canal lateral in Eagle Pass |
| 13206 | Rio Grande at US 277 in Eagle Pass |
| 13208 | Rio Grande 12.8 mi below Amistad Dam, 340 m upstream of US 277 Bridge in Del Rio |
| 13209 | Rio Grande below Amistad Dam NW of Del Rio |
| 13560 | Rio Grande 4.5 mi downstream of Del Rio at Moody Ranch |
| 13698 | Rio Grande 1.1 mi. downstream from Highway Bridge between Laredo and Nuevo Laredo |
| 15274 | Rio Grande at IBWC Weir Dam, 6 mi south of El Indio |
| 15340 | Rio Grande 3.4 km downstream of Amistad above Weir Dam |
| 15813 | Rio Grande at CP&L power plant intake |
| 15814 | Rio Grande at International Bridge #2 in Laredo |
| 15815 | Rio Grande at Masterson Rd. in Laredo, 9.9 downstream of International Bridge #1 |
| 15816 | Rio Grande at Rio Bravo, 0.5 km downstream of El Cenizo |
| 15817 | Rio Grande at Webb/Zapata county line |
| 15839 | Rio Grande at Colombia Bridge, 2.7 km upstream of the Dolores pump station |
| 17410 | Rio Grande below World Trade Bridge |
| 17596 | Rio Grande at Apache Ranch |
Segment 2305 - International Amistad Reservoir
| Station ID | Station description |
| 13211 | Amistad Reservoir at International Boundary Buoy 1 adjacent to dam |
| 13835 | Amistad Reservoir at Buoy #1 |
| 15892 | Amistad Reservoir Rio Grande Arm at Buoy #2 |
| 15893 | Amistad Reservoir Devils River Arm at Buoy DRP |
Segment 2306 - Rio Grande above Amistad Dam
| Station ID | Station Description |
| 13223 | Rio Grande at Foster Ranch west of Langtry off Hwy 90 W |
| 13225 | Rio Grande at FM 2627 (Gerstacker Bridge) below Big Bend |
| 13228 | Rio Grande at the mouth of Santa Elena Canyon |
| 13229 | Rio Grande below Rio Conchos confluence near Presidio |
| 16730 | Rio Grande at Rio Grande Village in Big Bend National Park |
| 17000 | Rio Grande at Presidio Railroad Bridge |
| 17001 | Rio Grande at Presidio Ojinaga vehicle bridge. |
Segment 2307 - Rio Grande below Riverside Diversion Dam
| Station ID | Station Description |
| 13230 | Rio Grande 2.4 mi upstream from Rio Conchos confluence |
| 13232 | Rio Grande at Neely Canyon, south of Fort Quitman |
| 13233 | Rio Grande Bridge off US 80 - IH 10 at Fort Hancock Port of Entry |
| 15704 | Rio Grande at Guadalupe point of entry bridge at FM 1106 west of Tornillo |
| 15795 | Rio Grande at Alamo Control Structure, 9.7 km upstream of Fort Hancock port of entry |
| 16272 | Rio Grande at San Elizario, 500 m upstream of Capomo Road end of pavement and 10.2 km downstream of Zaragoza International Bridge |
| 17407 | Rio Grande at Candelaria |
| 17408 | Rio Grande at Little Box Canyon |
Segment 2308 - Rio Grande below International Dam
| Station ID | Station Description |
| 14465 | Rio Grande at Riverside canal 1.8 km downstream of Zaragosa International Bridge |
| 15528 | Rio Grande 1.3 km downstream from Haskell R. Street WWTP outfall |
| 15529 | Rio Grande 2.4 km upstream from Haskell R. Street WWTP outfall, south of
Bowie High School football stadium in El Paso |
Segment 2309 - Devil's River - Tributary of the Rio Grande
| Station ID | Station Description |
| 13237 | Devils River at Pafford crossing near Comstock |
| 13239 | Devils River on Devils River State Natural Area, 1.7 km upstream of road crossing |
| 14942 | Dolan Springs 100 yds upstream of confluence with Devils River |
Segment 2310 - Lower Pecos River - Tributary of the Rio Grande
| Station ID | Station Description |
| 13109 | Independence Creek 0.5 mi downstream from John Chandler Ranch headquarters |
| 13240 | Pecos River at gaging station 7.4 mi east of Langtry, 15 mi upstream of confluence with Rio Grande |
| 13246 | Pecos River 7.52 km upstream from the Val Verde/Terrell/Crockett county line |
| 16379 | Pecos River 0.7 mi downstream from US 90 W in Val Verde county |
Segment 2311 - Upper Pecos River - Tributary of the Rio Grande
| Station ID | Station Description |
| 13257 | Pecos River at US 67 NE of Girvin |
| 13260 | Pecos River at FM 1776 SW of Monahans |
| 13261 | Pecos River near Pecos, Texas |
| 13264 | Pecos River near Mentone, Texas |
| 13265 | Pecos River at FM 652 bridge NE of Orla |
| 15114 | Pecos River 1.6 mi upstream of US 290, SE of Sheffield |
Segment 2312 - Red Bluff Reservoir
| Station ID | Station Description |
| 13267 | Red Bluff Reservoir above dam, north of Orla |
| 13269 | Red Bluff Reservoir 1/2 mile south of Texas - New Mexico border |
Segment 2313 - San Felipe Creek - Tributary of the Rio grande
| Station ID | Station Description |
| 13270 | San Felipe Creek at Guyler confluence with the Rio Grande |
| 15820 | San Felipe Creek at West Springs, near West Wells in Del Rio |
| 15821 | San Felipe Creek at Blue Hole flood gates in park between US90 bridge and Southern Pacific RR bridge in Del Rio |
Segment 2314 - Rio Grande above International Dam
| Station ID | Station Description |
| 13272 | Rio Grande at Courchesne Bridge, 1.7 mi upstream of American Dam |
| 13276 | Rio Grande upstream of East Drain |
| 17040 | Rio Grande at Anapra Bridge |