ZIP 77378 Tap Water Quality Report
What the State of Texas found in the water utilities serving 77378 in Willis, TX, and how to treat it.
9contaminants found above EPA health goals in at least one utility
4.4–19.9grains per gallon hardness (range across utilities in this ZIP): moderately hard to very hard
12water utilities with state test results in this ZIP
Found Above EPA Health Goals
An EPA health goal is the level at which no health risk is expected. Legal limits are often higher, because they also weigh the cost of treatment. These contaminants were found above the health goal in at least one utility serving 77378.
Lead (home tap samples)Found in 10 of 12 utilitiesHealth goal: zeroHighest utility average: 4.7 ppbRemoved by: PureGuard RO & PureGuard ULTRA
Gross beta radioactivityFound in 10 of 12 utilitiesHealth goal: zeroHighest utility average: 11 pCi/LRemoved by: PureGuard RO & PureGuard ULTRA
Gross alpha radioactivityFound in 8 of 12 utilitiesHealth goal: zero · Legal limit: 15 pCi/LHighest utility average: 9 pCi/LRemoved by: PureGuard RO & PureGuard ULTRA
Radium (combined 226 + 228)Found in 8 of 12 utilitiesHealth goal: zero · Legal limit: 5 pCi/LHighest utility average: 1.9 pCi/LRemoved by: Water softener, PureGuard RO & PureGuard ULTRA
ArsenicFound in 7 of 12 utilitiesHealth goal: zero · Legal limit: 10 ppbHighest utility average: 4.1 ppbRemoved by: PureGuard RO & PureGuard ULTRA
BromoformFound in 5 of 12 utilitiesHealth goal: zeroHighest utility average: 8.8 ppbRemoved by: AquaCarb PRO & AquaCarb ELITE, PureGuard RO & PureGuard ULTRA
BromodichloromethaneFound in 5 of 12 utilitiesHealth goal: zeroHighest utility average: 5.3 ppbRemoved by: AquaCarb PRO & AquaCarb ELITE, PureGuard RO & PureGuard ULTRA
Dichloroacetic acidFound in 3 of 12 utilitiesHealth goal: zeroHighest utility average: 5.4 ppbRemoved by: AquaCarb PRO & AquaCarb ELITE, PureGuard RO & PureGuard ULTRA
UraniumFound in 2 of 12 utilitiesHealth goal: zero · Legal limit: 30 ppbHighest utility average: 6.3 ppbRemoved by: PureGuard RO & PureGuard ULTRA
Source: Test results from the Texas Commission on Environmental Quality (TCEQ) Drinking Water Viewer, samples collected October 2023 through October 2026. Health goals and legal limits from the U.S. EPA National Primary Drinking Water Regulations. Each utility below lists its state water system ID so you can look up its records.
Results by Water Utility
Your water utility is the name on your water bill. Open it to see everything the state found in its water from October 2023 through October 2026.
City of Conroe serves about 113,912 people · hardness 4.4 gpg (moderately hard) · 6 above health goals
| Contaminant | Average found | Highest found | Legal limit | EPA health goal | Removed by |
|---|---|---|---|---|---|
| Bromodichloromethane Above health goal A trihalomethane disinfection byproduct. | 5.3 ppb | 13.5 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Bromoform Above health goal A trihalomethane disinfection byproduct. | 2.6 ppb | 8.9 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dichloroacetic acid Above health goal A haloacetic acid disinfection byproduct. | 5.4 ppb | 10.4 ppb | part of HAA5 | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Gross alpha radioactivity Above health goal Natural radioactivity from uranium and radium in groundwater. | 5.1 pCi/L | 7.6 pCi/L | 15 pCi/L | Zero | PureGuard RO & PureGuard ULTRA |
| Gross beta radioactivity Above health goal Radioactivity from natural and man-made sources. | 7 pCi/L | 10.7 pCi/L | 50 screening level (pCi/L) | Zero | PureGuard RO & PureGuard ULTRA |
| Radium (combined 226 + 228) Above health goal Naturally radioactive. Long-term exposure is linked to cancer. | 1.5 pCi/L | 1.5 pCi/L | 5 pCi/L | Zero | Water softener PureGuard RO & PureGuard ULTRA |
| Aluminum Can discolor water. | 0.037 ppm | 0.053 ppm | 0.2 guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.12 ppm | 0.2 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Bromochloroacetic acid A haloacetic acid disinfection byproduct. | 3 ppb | 5.3 ppb | None | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 33.2 ppm | 46 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Chloroform A trihalomethane disinfection byproduct. | 7.7 ppb | 16 ppb | part of TTHMs | 70 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.14 ppm | 0.68 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Dibromoacetic acid A haloacetic acid disinfection byproduct. | 1.7 ppb | 2.7 ppb | part of HAA5 | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dibromochloromethane A trihalomethane disinfection byproduct. | 4.4 ppb | 12.9 ppb | part of TTHMs | 60 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Fluoride Natural or added by the utility. Very high levels can affect teeth and bones. | 0.17 ppm | 0.21 ppm | 4 ppm | 4 ppm | PureGuard RO & PureGuard ULTRA |
| Haloacetic acids (HAA5) Disinfection byproducts that form when chlorine reacts with organic matter. Long-term exposure is linked to cancer. | 11.9 ppb | 24 ppb | 60 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.15 ppm | 0.29 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.0082 ppm | 0.013 ppm | 0.05 taste/stain guideline (ppm) | None set | Water softener |
| Nitrate From fertilizer, septic systems and natural deposits. High levels are dangerous for infants. | 0.26 ppm | 0.42 ppm | 10 ppm | 10 ppm | PureGuard RO & PureGuard ULTRA |
| Nitrate + nitrite From fertilizer, septic systems and natural deposits. High levels are dangerous for infants. | 0.06 ppm | 0.07 ppm | 10 ppm | 10 ppm | PureGuard RO & PureGuard ULTRA |
| Sodium No federal limit. EPA advises 20 ppm or less for people on low-sodium diets. | 50.8 ppm | 110 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 18.7 ppm | 25 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 283 ppm | 382 ppm | 500 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total trihalomethanes (TTHMs) Disinfection byproducts that form when chlorine reacts with organic matter. Long-term exposure is linked to cancer. | 23.2 ppb | 44.4 ppb | 80 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Trichloroacetic acid A haloacetic acid disinfection byproduct. | 4.7 ppb | 8.9 ppb | part of HAA5 | 20 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Zinc Can give water a metallic taste. | 0.0062 ppm | 0.0066 ppm | 5 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
Also detected (no federal limit or health goal): Methyl Isobutyl Ketone, Gross Alpha, Incl. Radon & U.
Source: TCEQ Drinking Water Viewer, public water system ID TX1700001. 1148 samples tested October 2023 through October 2026. To see the state records yourself, open the TCEQ Drinking Water Viewer ↗, choose Water Systems and search for TX1700001.
City of Willis serves about 14,133 people · hardness 6.3 gpg (moderately hard) · 4 above health goals
| Contaminant | Average found | Highest found | Legal limit | EPA health goal | Removed by |
|---|---|---|---|---|---|
| Bromodichloromethane Above health goal A trihalomethane disinfection byproduct. | 1.5 ppb | 2.3 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Bromoform Above health goal A trihalomethane disinfection byproduct. | 8.8 ppb | 31 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Gross beta radioactivity Above health goal Radioactivity from natural and man-made sources. | 6.5 pCi/L | 7.3 pCi/L | 50 screening level (pCi/L) | Zero | PureGuard RO & PureGuard ULTRA |
| Lead (home tap samples) Above health goal No safe level for children. Lead usually comes from household plumbing and fixtures, not the utility. | 1.3 ppb | 2.5 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.15 ppm | 0.24 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 58 ppm | 117 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.021 ppm | 0.065 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Dibromoacetic acid A haloacetic acid disinfection byproduct. | 1.7 ppb | 1.7 ppb | part of HAA5 | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dibromochloromethane A trihalomethane disinfection byproduct. | 4.2 ppb | 11 ppb | part of TTHMs | 60 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Fluoride Natural or added by the utility. Very high levels can affect teeth and bones. | 1.4 ppm | 1.4 ppm | 4 ppm | 4 ppm | PureGuard RO & PureGuard ULTRA |
| Haloacetic acids (HAA5) Disinfection byproducts that form when chlorine reacts with organic matter. Long-term exposure is linked to cancer. | 1.7 ppb | 1.7 ppb | 60 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.19 ppm | 0.33 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.014 ppm | 0.022 ppm | 0.05 taste/stain guideline (ppm) | None set | Water softener |
| Nickel A natural metal. No federal limit. | 1.2 ppb | 1.2 ppb | None | None set | Water softener PureGuard RO & PureGuard ULTRA |
| Nitrate From fertilizer, septic systems and natural deposits. High levels are dangerous for infants. | 0.077 ppm | 0.09 ppm | 10 ppm | 10 ppm | PureGuard RO & PureGuard ULTRA |
| Sodium No federal limit. EPA advises 20 ppm or less for people on low-sodium diets. | 109 ppm | 226 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 37.7 ppm | 84 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 450 ppm | 710 ppm | 500 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total trihalomethanes (TTHMs) Disinfection byproducts that form when chlorine reacts with organic matter. Long-term exposure is linked to cancer. | 11.4 ppb | 14.8 ppb | 80 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Zinc Can give water a metallic taste. | 0.075 ppm | 0.17 ppm | 5 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
Also detected (no federal limit or health goal): Chloromethane, Bromomethane, Xylenes, Total.
Source: TCEQ Drinking Water Viewer, public water system ID TX1700003. 82 samples tested October 2023 through October 2026. To see the state records yourself, open the TCEQ Drinking Water Viewer ↗, choose Water Systems and search for TX1700003.
Town of Cut and Shoot serves about 6,000 people · hardness 7.5 gpg (hard) · 7 above health goals
| Contaminant | Average found | Highest found | Legal limit | EPA health goal | Removed by |
|---|---|---|---|---|---|
| Arsenic Above health goal Occurs naturally in Texas groundwater. Long-term exposure is linked to cancer and to skin and circulatory problems. | 3.2 ppb | 3.2 ppb | 10 ppb | Zero | PureGuard RO & PureGuard ULTRA |
| Gross alpha radioactivity Above health goal Natural radioactivity from uranium and radium in groundwater. | 4 pCi/L | 4.8 pCi/L | 15 pCi/L | Zero | PureGuard RO & PureGuard ULTRA |
| Gross beta radioactivity Above health goal Radioactivity from natural and man-made sources. | 7.8 pCi/L | 9.7 pCi/L | 50 screening level (pCi/L) | Zero | PureGuard RO & PureGuard ULTRA |
| Lead (home tap samples) Above health goal No safe level for children. Lead usually comes from household plumbing and fixtures, not the utility. | 0.88 ppb | 0.88 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Radium (combined 226 + 228) Above health goal Naturally radioactive. Long-term exposure is linked to cancer. | 1 pCi/L | 1 pCi/L | 5 pCi/L | Zero | Water softener PureGuard RO & PureGuard ULTRA |
| Radium-226 (part of combined radium) Above health goal Naturally radioactive. Long-term exposure is linked to cancer. | 1 pCi/L | 1 pCi/L | 5 combined (pCi/L) | Zero | Water softener PureGuard RO & PureGuard ULTRA |
| Radium-228 (part of combined radium) Above health goal Naturally radioactive. Long-term exposure is linked to cancer. | 1.2 pCi/L | 1.2 pCi/L | 5 combined (pCi/L) | Zero | Water softener PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.2 ppm | 0.24 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 23.4 ppm | 44 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.011 ppm | 0.31 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Fluoride Natural or added by the utility. Very high levels can affect teeth and bones. | 0.17 ppm | 0.2 ppm | 4 ppm | 4 ppm | PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.18 ppm | 0.51 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.017 ppm | 0.033 ppm | 0.05 taste/stain guideline (ppm) | None set | Water softener |
| Nickel A natural metal. No federal limit. | 1.6 ppb | 2.1 ppb | None | None set | Water softener PureGuard RO & PureGuard ULTRA |
| Nitrate From fertilizer, septic systems and natural deposits. High levels are dangerous for infants. | 0.07 ppm | 0.07 ppm | 10 ppm | 10 ppm | PureGuard RO & PureGuard ULTRA |
| Sodium No federal limit. EPA advises 20 ppm or less for people on low-sodium diets. | 67.8 ppm | 84.8 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 11.5 ppm | 12 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 324 ppm | 460 ppm | 500 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Zinc Can give water a metallic taste. | 0.0079 ppm | 0.01 ppm | 5 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
Also detected (no federal limit or health goal): Acetone, Xylenes, Total, Gross Alpha, Incl. Radon & U.
Source: TCEQ Drinking Water Viewer, public water system ID TX1700592. 156 samples tested October 2023 through October 2026. To see the state records yourself, open the TCEQ Drinking Water Viewer ↗, choose Water Systems and search for TX1700592.
One Five O WSC serves about 3,094 people · hardness 12.3 gpg (very hard) · 7 above health goals
| Contaminant | Average found | Highest found | Legal limit | EPA health goal | Removed by |
|---|---|---|---|---|---|
| Arsenic Above health goal Occurs naturally in Texas groundwater. Long-term exposure is linked to cancer and to skin and circulatory problems. | 4.1 ppb | 4.1 ppb | 10 ppb | Zero | PureGuard RO & PureGuard ULTRA |
| Gross alpha radioactivity Above health goal Natural radioactivity from uranium and radium in groundwater. | 5.3 pCi/L | 6.6 pCi/L | 15 pCi/L | Zero | PureGuard RO & PureGuard ULTRA |
| Gross beta radioactivity Above health goal Radioactivity from natural and man-made sources. | 7.2 pCi/L | 7.2 pCi/L | 50 screening level (pCi/L) | Zero | PureGuard RO & PureGuard ULTRA |
| Lead (home tap samples) Above health goal No safe level for children. Lead usually comes from household plumbing and fixtures, not the utility. | 0.8 ppb | 0.8 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Radium (combined 226 + 228) Above health goal Naturally radioactive. Long-term exposure is linked to cancer. | 1.4 pCi/L | 1.4 pCi/L | 5 pCi/L | Zero | Water softener PureGuard RO & PureGuard ULTRA |
| Radium-226 (part of combined radium) Above health goal Naturally radioactive. Long-term exposure is linked to cancer. | 1.4 pCi/L | 1.4 pCi/L | 5 combined (pCi/L) | Zero | Water softener PureGuard RO & PureGuard ULTRA |
| Uranium Above health goal A naturally radioactive metal in Texas groundwater. | 4.1 ppb | 4.1 ppb | 30 ppb | Zero | PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.26 ppm | 0.31 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 43.5 ppm | 57 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.07 ppm | 0.37 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Fluoride Natural or added by the utility. Very high levels can affect teeth and bones. | 0.12 ppm | 0.12 ppm | 4 ppm | 4 ppm | PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.13 ppm | 0.18 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.036 ppm | 0.053 ppm | 0.05 taste/stain guideline (ppm) | None set | Water softener |
| Nickel A natural metal. No federal limit. | 1.6 ppb | 1.9 ppb | None | None set | Water softener PureGuard RO & PureGuard ULTRA |
| Sodium No federal limit. EPA advises 20 ppm or less for people on low-sodium diets. | 20.3 ppm | 21.6 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 7 ppm | 7 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 342 ppm | 350 ppm | 500 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Zinc Can give water a metallic taste. | 0.015 ppm | 0.015 ppm | 5 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
Also detected (no federal limit or health goal): Gross Alpha, Incl. Radon & U.
Source: TCEQ Drinking Water Viewer, public water system ID TX2040019. 49 samples tested October 2023 through October 2026. To see the state records yourself, open the TCEQ Drinking Water Viewer ↗, choose Water Systems and search for TX2040019.
Mercy WSC serves about 2,458 people · hardness 11.1 gpg (very hard) · 8 above health goals
| Contaminant | Average found | Highest found | Legal limit | EPA health goal | Removed by |
|---|---|---|---|---|---|
| Arsenic Above health goal Occurs naturally in Texas groundwater. Long-term exposure is linked to cancer and to skin and circulatory problems. | 2.8 ppb | 3.3 ppb | 10 ppb | Zero | PureGuard RO & PureGuard ULTRA |
| Bromodichloromethane Above health goal A trihalomethane disinfection byproduct. | 1.1 ppb | 1.2 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Bromoform Above health goal A trihalomethane disinfection byproduct. | 1.1 ppb | 1.3 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dichloroacetic acid Above health goal A haloacetic acid disinfection byproduct. | 1.3 ppb | 1.3 ppb | part of HAA5 | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Gross alpha radioactivity Above health goal Natural radioactivity from uranium and radium in groundwater. | 4.6 pCi/L | 5.6 pCi/L | 15 pCi/L | Zero | PureGuard RO & PureGuard ULTRA |
| Gross beta radioactivity Above health goal Radioactivity from natural and man-made sources. | 7.5 pCi/L | 13.6 pCi/L | 50 screening level (pCi/L) | Zero | PureGuard RO & PureGuard ULTRA |
| Radium (combined 226 + 228) Above health goal Naturally radioactive. Long-term exposure is linked to cancer. | 1.5 pCi/L | 1.5 pCi/L | 5 pCi/L | Zero | Water softener PureGuard RO & PureGuard ULTRA |
| Radium-226 (part of combined radium) Above health goal Naturally radioactive. Long-term exposure is linked to cancer. | 1.5 pCi/L | 1.5 pCi/L | 5 combined (pCi/L) | Zero | Water softener PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.25 ppm | 0.3 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 36.5 ppm | 51 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Chloroform A trihalomethane disinfection byproduct. | 1 ppb | 1 ppb | part of TTHMs | 70 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.14 ppm | 1.3 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Dibromochloromethane A trihalomethane disinfection byproduct. | 1.4 ppb | 1.6 ppb | part of TTHMs | 60 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Fluoride Natural or added by the utility. Very high levels can affect teeth and bones. | 0.19 ppm | 0.27 ppm | 4 ppm | 4 ppm | PureGuard RO & PureGuard ULTRA |
| Haloacetic acids (HAA5) Disinfection byproducts that form when chlorine reacts with organic matter. Long-term exposure is linked to cancer. | 1.3 ppb | 1.3 ppb | 60 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.2 ppm | 0.28 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.033 ppm | 0.046 ppm | 0.05 taste/stain guideline (ppm) | None set | Water softener |
| Nickel A natural metal. No federal limit. | 1.6 ppb | 1.8 ppb | None | None set | Water softener PureGuard RO & PureGuard ULTRA |
| Sodium No federal limit. EPA advises 20 ppm or less for people on low-sodium diets. | 40.6 ppm | 70.5 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 9.3 ppm | 14 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 338 ppm | 355 ppm | 500 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total trihalomethanes (TTHMs) Disinfection byproducts that form when chlorine reacts with organic matter. Long-term exposure is linked to cancer. | 3.8 ppb | 3.8 ppb | 80 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Zinc Can give water a metallic taste. | 0.028 ppm | 0.058 ppm | 5 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
Also detected (no federal limit or health goal): Methyl Isobutyl Ketone, Xylenes, Total, Ethylbenzene, Gross Alpha, Incl. Radon & U.
Source: TCEQ Drinking Water Viewer, public water system ID TX2040058. 68 samples tested October 2023 through October 2026. To see the state records yourself, open the TCEQ Drinking Water Viewer ↗, choose Water Systems and search for TX2040058.
Arrowhead Lake & Frontier Lake serves about 2,208 people · hardness 13.5 gpg (very hard) · 5 above health goals
| Contaminant | Average found | Highest found | Legal limit | EPA health goal | Removed by |
|---|---|---|---|---|---|
| Gross alpha radioactivity Above health goal Natural radioactivity from uranium and radium in groundwater. | 9 pCi/L | 9 pCi/L | 15 pCi/L | Zero | PureGuard RO & PureGuard ULTRA |
| Gross beta radioactivity Above health goal Radioactivity from natural and man-made sources. | 8.6 pCi/L | 8.6 pCi/L | 50 screening level (pCi/L) | Zero | PureGuard RO & PureGuard ULTRA |
| Lead (home tap samples) Above health goal No safe level for children. Lead usually comes from household plumbing and fixtures, not the utility. | 1.6 ppb | 1.6 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Radium (combined 226 + 228) Above health goal Naturally radioactive. Long-term exposure is linked to cancer. | 1.9 pCi/L | 1.9 pCi/L | 5 pCi/L | Zero | Water softener PureGuard RO & PureGuard ULTRA |
| Radium-226 (part of combined radium) Above health goal Naturally radioactive. Long-term exposure is linked to cancer. | 1.9 pCi/L | 1.9 pCi/L | 5 combined (pCi/L) | Zero | Water softener PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.27 ppm | 0.31 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 45 ppm | 65 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.055 ppm | 0.4 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Fluoride Natural or added by the utility. Very high levels can affect teeth and bones. | 0.12 ppm | 0.12 ppm | 4 ppm | 4 ppm | PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.11 ppm | 0.15 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.02 ppm | 0.025 ppm | 0.05 taste/stain guideline (ppm) | None set | Water softener |
| Nickel A natural metal. No federal limit. | 2 ppb | 2.6 ppb | None | None set | Water softener PureGuard RO & PureGuard ULTRA |
| Sodium No federal limit. EPA advises 20 ppm or less for people on low-sodium diets. | 32.1 ppm | 33.2 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 11 ppm | 11 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 371 ppm | 453 ppm | 500 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Zinc Can give water a metallic taste. | 0.061 ppm | 0.073 ppm | 5 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
Also detected (no federal limit or health goal): Gross Alpha, Incl. Radon & U.
Source: TCEQ Drinking Water Viewer, public water system ID TX1700171. 39 samples tested October 2023 through October 2026. To see the state records yourself, open the TCEQ Drinking Water Viewer ↗, choose Water Systems and search for TX1700171.
Domestic Water Company Royal Forest Subdivision serves about 1,667 people · hardness 17.3 gpg (very hard) · 8 above health goals
| Contaminant | Average found | Highest found | Legal limit | EPA health goal | Removed by |
|---|---|---|---|---|---|
| Arsenic Above health goal Occurs naturally in Texas groundwater. Long-term exposure is linked to cancer and to skin and circulatory problems. | 3.1 ppb | 3.3 ppb | 10 ppb | Zero | PureGuard RO & PureGuard ULTRA |
| Bromodichloromethane Above health goal A trihalomethane disinfection byproduct. | 1.5 ppb | 1.5 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Bromoform Above health goal A trihalomethane disinfection byproduct. | 5 ppb | 7.2 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Gross alpha radioactivity Above health goal Natural radioactivity from uranium and radium in groundwater. | 6.7 pCi/L | 6.8 pCi/L | 15 pCi/L | Zero | PureGuard RO & PureGuard ULTRA |
| Gross beta radioactivity Above health goal Radioactivity from natural and man-made sources. | 8.4 pCi/L | 8.4 pCi/L | 50 screening level (pCi/L) | Zero | PureGuard RO & PureGuard ULTRA |
| Lead (home tap samples) Above health goal No safe level for children. Lead usually comes from household plumbing and fixtures, not the utility. | 4.7 ppb | 4.7 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Radium (combined 226 + 228) Above health goal Naturally radioactive. Long-term exposure is linked to cancer. | 1.6 pCi/L | 1.8 pCi/L | 5 pCi/L | Zero | Water softener PureGuard RO & PureGuard ULTRA |
| Radium-226 (part of combined radium) Above health goal Naturally radioactive. Long-term exposure is linked to cancer. | 1.6 pCi/L | 1.8 pCi/L | 5 combined (pCi/L) | Zero | Water softener PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.29 ppm | 0.29 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 97 ppm | 103 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.19 ppm | 0.46 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Dibromochloromethane A trihalomethane disinfection byproduct. | 3.3 ppb | 4.7 ppb | part of TTHMs | 60 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Fluoride Natural or added by the utility. Very high levels can affect teeth and bones. | 0.28 ppm | 0.29 ppm | 4 ppm | 4 ppm | PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.26 ppm | 0.42 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.022 ppm | 0.032 ppm | 0.05 taste/stain guideline (ppm) | None set | Water softener |
| Nickel A natural metal. No federal limit. | 3.3 ppb | 3.6 ppb | None | None set | Water softener PureGuard RO & PureGuard ULTRA |
| Sodium No federal limit. EPA advises 20 ppm or less for people on low-sodium diets. | 34.8 ppm | 38.1 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 12 ppm | 12 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 508 ppm | 526 ppm | 500 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Zinc Can give water a metallic taste. | 0.053 ppm | 0.058 ppm | 5 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
Also detected (no federal limit or health goal): Xylenes, Total, Gross Alpha, Incl. Radon & U.
Source: TCEQ Drinking Water Viewer, public water system ID TX1700037. 40 samples tested October 2023 through October 2026. To see the state records yourself, open the TCEQ Drinking Water Viewer ↗, choose Water Systems and search for TX1700037.
Caddo Village serves about 1,395 people · hardness 19.9 gpg (very hard) · 1 above health goals
| Contaminant | Average found | Highest found | Legal limit | EPA health goal | Removed by |
|---|---|---|---|---|---|
| Lead (home tap samples) Above health goal No safe level for children. Lead usually comes from household plumbing and fixtures, not the utility. | 0.69 ppb | 0.74 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.35 ppm | 0.35 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.092 ppm | 0.18 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.57 ppm | 0.57 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.059 ppm | 0.059 ppm | 0.05 taste/stain guideline (ppm) | None set | Water softener |
| Nickel A natural metal. No federal limit. | 6.4 ppb | 6.4 ppb | None | None set | Water softener PureGuard RO & PureGuard ULTRA |
| Sodium No federal limit. EPA advises 20 ppm or less for people on low-sodium diets. | 31.7 ppm | 31.7 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Zinc Can give water a metallic taste. | 0.17 ppm | 0.17 ppm | 5 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
Source: TCEQ Drinking Water Viewer, public water system ID TX1700473. 25 samples tested October 2023 through October 2026. To see the state records yourself, open the TCEQ Drinking Water Viewer ↗, choose Water Systems and search for TX1700473.
Emerald Lakes Subdivision serves about 1,053 people · hardness 10.8 gpg (very hard) · 8 above health goals
| Contaminant | Average found | Highest found | Legal limit | EPA health goal | Removed by |
|---|---|---|---|---|---|
| Arsenic Above health goal Occurs naturally in Texas groundwater. Long-term exposure is linked to cancer and to skin and circulatory problems. | 2.4 ppb | 2.4 ppb | 10 ppb | Zero | PureGuard RO & PureGuard ULTRA |
| Bromodichloromethane Above health goal A trihalomethane disinfection byproduct. | 1.9 ppb | 2.8 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dichloroacetic acid Above health goal A haloacetic acid disinfection byproduct. | 2.7 ppb | 2.7 ppb | part of HAA5 | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Gross alpha radioactivity Above health goal Natural radioactivity from uranium and radium in groundwater. | 6.3 pCi/L | 7.1 pCi/L | 15 pCi/L | Zero | PureGuard RO & PureGuard ULTRA |
| Gross beta radioactivity Above health goal Radioactivity from natural and man-made sources. | 9.6 pCi/L | 9.8 pCi/L | 50 screening level (pCi/L) | Zero | PureGuard RO & PureGuard ULTRA |
| Lead (home tap samples) Above health goal No safe level for children. Lead usually comes from household plumbing and fixtures, not the utility. | 0.85 ppb | 0.99 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Radium (combined 226 + 228) Above health goal Naturally radioactive. Long-term exposure is linked to cancer. | 1.6 pCi/L | 1.6 pCi/L | 5 pCi/L | Zero | Water softener PureGuard RO & PureGuard ULTRA |
| Radium-226 (part of combined radium) Above health goal Naturally radioactive. Long-term exposure is linked to cancer. | 1.6 pCi/L | 1.6 pCi/L | 5 combined (pCi/L) | Zero | Water softener PureGuard RO & PureGuard ULTRA |
| Aluminum Can discolor water. | 0.15 ppm | 0.15 ppm | 0.2 guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.25 ppm | 0.25 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Bromochloroacetic acid A haloacetic acid disinfection byproduct. | 1.1 ppb | 1.1 ppb | None | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 40.5 ppm | 41 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Chloroform A trihalomethane disinfection byproduct. | 6.5 ppb | 6.5 ppb | part of TTHMs | 70 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.056 ppm | 0.22 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Dibromochloromethane A trihalomethane disinfection byproduct. | 1.1 ppb | 1.1 ppb | part of TTHMs | 60 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Fluoride Natural or added by the utility. Very high levels can affect teeth and bones. | 0.1 ppm | 0.1 ppm | 4 ppm | 4 ppm | PureGuard RO & PureGuard ULTRA |
| Haloacetic acids (HAA5) Disinfection byproducts that form when chlorine reacts with organic matter. Long-term exposure is linked to cancer. | 2.7 ppb | 2.7 ppb | 60 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.1 ppm | 0.16 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.015 ppm | 0.021 ppm | 0.05 taste/stain guideline (ppm) | None set | Water softener |
| Nickel A natural metal. No federal limit. | 1.6 ppb | 1.9 ppb | None | None set | Water softener PureGuard RO & PureGuard ULTRA |
| Sodium No federal limit. EPA advises 20 ppm or less for people on low-sodium diets. | 35.9 ppm | 37.2 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 10 ppm | 10 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 332 ppm | 332 ppm | 500 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total trihalomethanes (TTHMs) Disinfection byproducts that form when chlorine reacts with organic matter. Long-term exposure is linked to cancer. | 10.4 ppb | 10.4 ppb | 80 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Zinc Can give water a metallic taste. | 0.011 ppm | 0.013 ppm | 5 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
Also detected (no federal limit or health goal): Xylenes, Total, Gross Alpha, Incl. Radon & U.
Source: TCEQ Drinking Water Viewer, public water system ID TX1700777. 41 samples tested October 2023 through October 2026. To see the state records yourself, open the TCEQ Drinking Water Viewer ↗, choose Water Systems and search for TX1700777.
Texas National MUD serves about 931 people · hardness 7.7 gpg (hard) · 1 above health goals
| Contaminant | Average found | Highest found | Legal limit | EPA health goal | Removed by |
|---|---|---|---|---|---|
| Lead (home tap samples) Above health goal No safe level for children. Lead usually comes from household plumbing and fixtures, not the utility. | 3.3 ppb | 5.7 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.24 ppm | 0.24 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 19 ppm | 19 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.039 ppm | 0.08 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Dibromochloromethane A trihalomethane disinfection byproduct. | 1.1 ppb | 1.2 ppb | part of TTHMs | 60 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.15 ppm | 0.15 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.0098 ppm | 0.0098 ppm | 0.05 taste/stain guideline (ppm) | None set | Water softener |
| Nickel A natural metal. No federal limit. | 1.1 ppb | 1.1 ppb | None | None set | Water softener PureGuard RO & PureGuard ULTRA |
| Sodium No federal limit. EPA advises 20 ppm or less for people on low-sodium diets. | 56 ppm | 56 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 11 ppm | 11 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 316 ppm | 316 ppm | 500 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total trihalomethanes (TTHMs) Disinfection byproducts that form when chlorine reacts with organic matter. Long-term exposure is linked to cancer. | 1.1 ppb | 1.2 ppb | 80 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Zinc Can give water a metallic taste. | 0.015 ppm | 0.015 ppm | 5 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
Source: TCEQ Drinking Water Viewer, public water system ID TX1700207. 26 samples tested October 2023 through October 2026. To see the state records yourself, open the TCEQ Drinking Water Viewer ↗, choose Water Systems and search for TX1700207.
Timber Line Estates serves about 579 people · hardness 14.7 gpg (very hard) · 4 above health goals
| Contaminant | Average found | Highest found | Legal limit | EPA health goal | Removed by |
|---|---|---|---|---|---|
| Arsenic Above health goal Occurs naturally in Texas groundwater. Long-term exposure is linked to cancer and to skin and circulatory problems. | 3.9 ppb | 3.9 ppb | 10 ppb | Zero | PureGuard RO & PureGuard ULTRA |
| Gross beta radioactivity Above health goal Radioactivity from natural and man-made sources. | 11 pCi/L | 11 pCi/L | 50 screening level (pCi/L) | Zero | PureGuard RO & PureGuard ULTRA |
| Lead (home tap samples) Above health goal No safe level for children. Lead usually comes from household plumbing and fixtures, not the utility. | 2.8 ppb | 9.6 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Radium (combined 226 + 228) Above health goal Naturally radioactive. Long-term exposure is linked to cancer. | 1.5 pCi/L | 1.5 pCi/L | 5 pCi/L | Zero | Water softener PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.24 ppm | 0.24 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 43 ppm | 43 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.098 ppm | 0.73 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.26 ppm | 0.26 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.025 ppm | 0.025 ppm | 0.05 taste/stain guideline (ppm) | None set | Water softener |
| Nickel A natural metal. No federal limit. | 2.6 ppb | 2.6 ppb | None | None set | Water softener PureGuard RO & PureGuard ULTRA |
| Sodium No federal limit. EPA advises 20 ppm or less for people on low-sodium diets. | 39.3 ppm | 39.3 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 12 ppm | 12 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 373 ppm | 373 ppm | 500 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Zinc Can give water a metallic taste. | 0.048 ppm | 0.048 ppm | 5 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
Also detected (no federal limit or health goal): Carbon Disulfide.
Source: TCEQ Drinking Water Viewer, public water system ID TX1700728. 26 samples tested October 2023 through October 2026. To see the state records yourself, open the TCEQ Drinking Water Viewer ↗, choose Water Systems and search for TX1700728.
Rogers Road Water System serves about 567 people · hardness 17.7 gpg (very hard) · 6 above health goals
| Contaminant | Average found | Highest found | Legal limit | EPA health goal | Removed by |
|---|---|---|---|---|---|
| Arsenic Above health goal Occurs naturally in Texas groundwater. Long-term exposure is linked to cancer and to skin and circulatory problems. | 3.7 ppb | 3.7 ppb | 10 ppb | Zero | PureGuard RO & PureGuard ULTRA |
| Bromoform Above health goal A trihalomethane disinfection byproduct. | 1.9 ppb | 1.9 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Gross alpha radioactivity Above health goal Natural radioactivity from uranium and radium in groundwater. | 3 pCi/L | 3 pCi/L | 15 pCi/L | Zero | PureGuard RO & PureGuard ULTRA |
| Gross beta radioactivity Above health goal Radioactivity from natural and man-made sources. | 7.3 pCi/L | 7.3 pCi/L | 50 screening level (pCi/L) | Zero | PureGuard RO & PureGuard ULTRA |
| Lead (home tap samples) Above health goal No safe level for children. Lead usually comes from household plumbing and fixtures, not the utility. | 0.54 ppb | 0.57 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Uranium Above health goal A naturally radioactive metal in Texas groundwater. | 6.3 ppb | 6.3 ppb | 30 ppb | Zero | PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.32 ppm | 0.32 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 69 ppm | 69 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.018 ppm | 0.044 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Dibromochloromethane A trihalomethane disinfection byproduct. | 1.8 ppb | 1.8 ppb | part of TTHMs | 60 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Fluoride Natural or added by the utility. Very high levels can affect teeth and bones. | 0.41 ppm | 0.41 ppm | 4 ppm | 4 ppm | PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.021 ppm | 0.021 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.0048 ppm | 0.0048 ppm | 0.05 taste/stain guideline (ppm) | None set | Water softener |
| Nickel A natural metal. No federal limit. | 2.7 ppb | 2.7 ppb | None | None set | Water softener PureGuard RO & PureGuard ULTRA |
| Sodium No federal limit. EPA advises 20 ppm or less for people on low-sodium diets. | 27.3 ppm | 27.3 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 10 ppm | 10 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 462 ppm | 462 ppm | 500 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Zinc Can give water a metallic taste. | 0.02 ppm | 0.02 ppm | 5 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
Also detected (no federal limit or health goal): Methyl Ethyl Ketone, 1,2,4-Trimethylbenzene, Xylenes, Total, Ethylbenzene, Gross Alpha, Incl. Radon & U.
Source: TCEQ Drinking Water Viewer, public water system ID TX1700590. 24 samples tested October 2023 through October 2026. To see the state records yourself, open the TCEQ Drinking Water Viewer ↗, choose Water Systems and search for TX1700590.
How We Treat Willis Water
This is what each of our systems does about the contaminants found in 77378.
| Found in 77378 | Water softener | AquaCarb PRO / ELITE | PureGuard RO / PureGuard ULTRA |
|---|---|---|---|
| Hardness (4.4–19.9 grains per gallon) | ✓ | – | ✓ |
| Arsenic | – | – | ✓ |
| Bromodichloromethane | – | ✓ | ✓ |
| Bromoform | – | ✓ | ✓ |
| Dichloroacetic acid | – | ✓ | ✓ |
| Gross alpha radioactivity | – | – | ✓ |
| Gross beta radioactivity | – | – | ✓ |
| Lead (home tap samples) | – | – | ✓ |
| Radium (combined 226 + 228) | ✓ | – | ✓ |
| Uranium | – | – | ✓ |
| Haloacetic acids (HAA5) | – | ✓ | ✓ |
| Iron | ✓ | – | – |
| Manganese | ✓ | – | – |
| Sodium | – | – | ✓ |
| Total dissolved solids (TDS) | – | – | ✓ |
| Total trihalomethanes (TTHMs) | – | ✓ | ✓ |
That is why our SENTINEL packages pair a whole-home system with a PureGuard RO & PureGuard ULTRA drinking water system. The softener and AquaCarb handle the water that goes on you. Reverse osmosis handles the water that goes in you. Salt delivery and filter changes are covered by the UnitedCare Membership.
About This Report
Test results come from the Texas Commission on Environmental Quality (TCEQ) Drinking Water Viewer, covering samples collected October 2023 through October 2026. Legal limits and health goals are from the U.S. Environmental Protection Agency's National Primary and Secondary Drinking Water Regulations. "Average found" is the average of samples where the contaminant was detected.
Utility reports show the water the utility delivers. What comes out of your tap also depends on your home's plumbing. Lead and copper results come from samples taken at customers' taps. The best way to know what is in your water is to test it at your sink. We do that for free.
Every utility listed here is required to meet federal standards, and finding a contaminant above a health goal does not mean a utility is out of compliance.