Monitoring Station Water Quality Data
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 the water quality data for that station from 1995 to present, for conventional parameters and bacteria.
Segment 2302 - Rio Grande below Falcon Reservoir
13177 - Rio Grande below El Jardin at Brownsville
13178 - Rio Grande International Bridge on US 77 at Brownsville
20449 - Rio Grande at Brownsville PUB Water Treatment Plant No. 1 Intake between WTP Reservoir and Rio Grande Levee
13179 - Rio Grande near River Bend boat ramp, west of Brownsville
10249 - Rio Grande 6.3 km downstream from San Benito pumping plant
17247 - Rio Grande 100 m upstream from the FM 1015 Bridge at Progresso
13180 - Rio Grande downstream of El Anhelo Drain South of Las Milpas
15808 - Rio Grande 200 m upstream of Pharr International Bridge
13181 - Rio Grande at International Bridge
13664 - Rio Grande 0.5 mi below Anzalduas dam, 12.2 mi from Hidalgo
21012 - Rio Grande River off Shuerbach Road / Airfield Road 1.2 Kilometers South and 70 Meters East from the intersection of Shuerbach Road and Military Road South of Mission CAMS 792
20696 - Rio Grande at the El Morillo Tract of the Lower Rio Grande Valley National Wildlife Refuge
20698 - Old Rio Grande Meander La Parido Banco Number 144 Boat Ramp
13184 - Rio Grande at SH 886 near Los Ebanos
21749 - Rio Grande, approx. 380m downstream of the confluence with Los Olmos Creek
21591 - Arroyo Los Olmos, 400m upstream of the confluence with the Rio Grande, near Rio Grande City
13103 - Arroyo Los Olmos Bridge on US 83 south of Rio Grande City
13104 - Arroyo Los Olmos at SH 755 NW of Rio Grande City
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
Segment 2304 - Rio Grande below International Amistad Reservoir
15817 - Rio Grande at Webb/Zapata county line
13194 - Rio Grande at the San Isidro Pump Station
15816 - Rio Grande at Rio Bravo, 0.5 km downstream of El Cenizo
21542 - Rio Grande at El Cenizo Park, 220m West of the intersection of Cadena and Jimenez
13196 - Rio Grande at pipeline crossing, 13.9 km below Laredo
15815 - Rio Grande at Masterson Rd. in Laredo, 9.9 downstream of International Bridge #1
13698 - Rio Grande 1.1 mi. downstream from Highway Bridge between Laredo and Nuevo Laredo
15814 - Rio Grande at International Bridge #2 in Laredo
13200 - Rio Grande 50 yds upstream of Zacate Creek confluence with Rio Grande (Azteca)
13202 - Rio Grande at Laredo WTP pump intake
15813 - Rio Grande at CP&L power plant intake
20650 - Rio Grande 115 Meters South and 304 meters West from the Intersection of Rancho Viejo Drive/Zebu Court and Rienda Drive at Father MacNaboe Park in Laredo
13116 - Manadas Creek at FM 1472 north of Laredo
17410 - Rio Grande below World Trade Bridge
15839 - Rio Grande at Colombia Bridge, 2.7 km upstream of the Dolores pump station
17596 - Rio Grande at Apache Ranch
15274 - Rio Grande at IBWC Weir Dam, 6 mi south of El Indio
18792 - Rio Grande at Kickapoo Casino
20999 - Rio Grande at Kickapoo Casino Boat Ramp south of Eagle Pass
18795 - Rio Grande at Kickapoo Reservation 1.92 km S and 2.02 Km west of RR 1021 at Maverick County Hwy 523 South of Eagle Pass
13205 - Rio Grande near irrigation canal lateral in Eagle Pass
13206 - Rio Grande at US 277 in Eagle Pass
20997 - Rio Grande at Main Street Boat Ramp approx 400 meters upstream of US 57/International Bridge in Eagle Pass
13560 - Rio Grande 4.5 mi downstream of Del Rio at Moody Ranch
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
15340 - Rio Grande 3.4 km downstream of Amistad above Weir Dam
Segment 2306 - Rio Grande above Amistad Dam
13223 - Rio Grande at Foster Ranch west of Langtry off Hwy 90 W
20631 - Rio Grande at the confluence with Indian Creek in Terrell County
20625 - Rio Grande 50 meters upstream of Silber Canyon South of Sanderson
20623 - Rio Grande at Taylors Farm SW of Sanderson
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
18441 - Rio Grande at Lajitas Resort/FM 170 Boat Ramp0240 m upstream of Black Hills Creek confluence near Lajitas
16862 - Rio Grande at Colorado Canyon Approx. 30 km SE of Redford on RR170 in Presidio County
17000 - Rio Grande at Presidio Railroad Bridge
17001 - Rio Grande at Presidio Ojinaga vehicle bridge.
Segment 2307 - Rio Grande below Riverside Diversion Dam
13230 - Rio Grande 2.4 mi upstream from Rio Conchos confluence
17407 - Rio Grande at Candelaria
20648 - Rio Grande 1.47 kilometers Upstream of the Confluence with the Green River
17408 - Rio Grande at Little Box Canyon
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
15795 - Rio Grande at Alamo Control Structure, 9.7 km upstream of Fort Hancock port of entry
15704 - Rio Grande at Guadalupe point of entry bridge at FM 1106 west of Tornillo
16272 - Rio Grande at San Elizario, 500 m upstream of Capomo Road end of pavement and 10.2 km downstream of Zaragoza International Bridge
Segment 2308 - Rio Grande below International Dam
14465 - Rio Grande at Riverside canal 1.8 km downstream of Zaragosa International Bridge
13234 - Rio Grande at 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 2310 - Lower Pecos River - Tributary of the Rio Grande
13109 - Independence Creek 0.5 mi downstream from John Chandler Ranch headquarters
18801 - Lower Pecos River CAMS 0729
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
13248 - Pecos River 0.1 km upstream of the Confluence with Independence Creek, Chandler Ranch
14163 - Pecos River Approximately 0.5 mi downstream from the Confluence with Independence Creek
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
13249 - Upper Pecos River Bridge on US 290 SE of Sheffield CAMS 0735
13257 - Pecos River at US 67 NE of Girvin
20339 - Pecos River 62 m North and 17 m east to the end of Horse Head Road
13258 - Pecos River at FM 1053 NE of Imperial
13259 - Pecos River at SH 18 SSW of Grandfalls
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
14164 - Pecos River approx. 2.98km upstream of the confluence with Independence Creek
20558 - Kokernot Spring at Intersection of Alpine Creek and Hendryx Drive/Harrison Street/Sh 223 and 40 Meters East of the Kokernot Lodge on Sul Ross University Campus in Alpine