Whole House Water Softeners in Corinth

Corinth has no wells and no treatment plant of its own. Federal facility records for the city system (TX0610065) show a single kind of source, surface water purchased from Upper Trinity's regional treatment plant, arriving at two pump stations: one at 1124 Postwood Drive with 0.5 and 1.5 million gallon ground tanks and pumps rated at 1,000 gallons a minute, and a larger one at 1651 Lake Sharon Drive with 3 million and 1.5 million gallon ground tanks and pumps rated at 4,800 gallons a minute, which together feed two 0.5 million gallon elevated tanks at 1200 North Corinth and 3031 Meadowview Drive. The city's 2025 report says the Upper Trinity water comes from Lake Lewisville. Upper Trinity treats that lake, and Ray Roberts Lake upstream of it, at its Thomas E. Taylor plant in Lewisville, a 70 million gallon a day plant being expanded to 85 that runs raw water through coagulation, settling, ozone, carbon and sand filters and chloramine before it goes to clearwell storage and out to customers.

Treated lake water is not soft, but no one in Corinth's supply chain publishes its hardness. The city's report carries a page of Upper Trinity plant data and a page of Corinth's own distribution results, chloramine residual averaging 2.6 mg/L, nitrate, disinfection by-products, lead and copper, and explains that secondary constituents such as calcium, sodium and iron are regulated by the state and not required in the report. Upper Trinity's own 2025 Consumer Confidence Report lists bromate, arsenic, barium, copper, lead, fluoride at 0.26 ppm (the district adds none), nitrate and turbidity, and nothing for hardness, calcium or magnesium. The nearest published number for this water is Dallas's. Dallas treats Ray Roberts and Lewisville lake water, with Grapevine, at its Elm Fork and Bachman plants, and in a December 2023 memorandum put its system's hardness at 120 to 155 mg/L as calcium carbonate; the USGS scale calls that moderately hard to hard, about 7 to 9 grains per gallon. That is Dallas's figure for Dallas's plants, not Corinth's, and this page prints no figure for Corinth.

Because Corinth has one source and no wells to blend, its water is more uniform than most of its neighbors': the same Taylor plant water fills both pump stations, and what changes is the lake itself, which picks up calcium and magnesium from its watershed and varies with rainfall and season. A home off Lake Sharon Drive and one near Postwood Drive are drinking the same thing on the same day. Scale in kettles and on shower glass, the signs this page lists above, is what moderately hard to hard reservoir water does, and the only way to put a Corinth number on it is to measure it. Our free water test gives a Corinth tap its own total hardness, in ppm and in grains, and we size the softener to that result rather than to another city's range.

Sources: City of Corinth 2025 Annual Water Quality Report · U.S. EPA Envirofacts SDWIS: water system facilities for TX0610065 · Upper Trinity Regional Water District: Water Treatment and Delivery · Upper Trinity Regional Water District: Water Projects · Upper Trinity Regional Water District 2025 Consumer Confidence Report · City of Dallas memorandum, December 1, 2023: Community Water Fluoridation Follow Up