All Cities
Local Water DataHidalgo County

RO Membrane Selection for Weslaco, TX Water

Military Highway WSC — South Weslaco (City of Weslaco surface water)
PWS ID: TX1080235
2025 water quality report

What's in Weslaco's Water

Reported values from Military Highway WSC — South Weslaco (City of Weslaco surface water)'s 2025 water quality data. Feed water chemistry drives membrane choice, operating pressure, and cleaning frequency.

Source water

Surface water from the Rio Grande River, treated by the City of Weslaco (PWS TX1080011) and purchased/delivered by Military Highway WSC for the South Weslaco system

TTHM note

MHWSC compliance site LRAA; City of Weslaco source sites ran 58-71

Arsenic2.6 ppb
Barium0.125 ppm
Beta emitters7.4 pCi/L
Chloramines2 ppm
Combined radium1.5 pCi/L
Copper 90th0.192 ppm
Dibromochloromethane28.9 µg/L
Fluoride0.57 ppm
HAA526 ppb
Lead 90th0 ppb
Nickel0.0037 ppm
Nitrate1.39 ppm
Selenium5.1 ppb
TTHM65 ppb
Uranium2.4 µg/L

Our Recommendation for Weslaco

The 2025 story in Weslaco is disinfection byproducts: TTHM running annual averages hit 65 ppb at the compliance site and up to 71 at City of Weslaco source monitoring points — uncomfortably close to the 80 ppb federal limit — with dibromochloromethane at 28.9 µg/L. RO with carbon polishing is the removal chain for exactly this; the brackish NanoH2O (formerly LG) BW 400 R G2 covers the Rio Grande mineral base at the same time.

Membranes Matched to This Water

The Industry Workhorse

NanoH2O (LG) BW 400 R G2

  • 99.8% salt rejection
  • 11,500 GPD · 225 psi
  • 400 ft² active area
View membrane

Running RO on Weslaco water?

Send us your system size and feed water details — we'll spec the right membrane for your operation and quote same-day shipping.

Data Source

Water quality values on this page are taken from Military Highway WSC — South Weslaco (City of Weslaco surface water)'s 2025 published water quality report (PWS ID TX1080235). Values are utility-wide averages; water at a specific site can vary. For membrane selection on a critical system, test your actual feed water.

View the official report