ZIP 77441 Tap Water Quality Report
What the State of Texas found in the water utilities serving 77441 in Fulshear, TX, and how to treat it.
8contaminants found above EPA health goals in at least one utility
3.4–8.9grains per gallon hardness (range across utilities in this ZIP): slightly hard to hard
9water 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 77441.
Lead (home tap samples)Found in 8 of 9 utilitiesHealth goal: zeroHighest utility average: 2.3 ppbRemoved by: PureGuard RO & PureGuard ULTRA
BromodichloromethaneFound in 7 of 9 utilitiesHealth goal: zeroHighest utility average: 9.8 ppbRemoved by: AquaCarb PRO & AquaCarb ELITE, PureGuard RO & PureGuard ULTRA
Dichloroacetic acidFound in 5 of 9 utilitiesHealth goal: zeroHighest utility average: 30.1 ppbRemoved by: AquaCarb PRO & AquaCarb ELITE, PureGuard RO & PureGuard ULTRA
ArsenicFound in 4 of 9 utilitiesHealth goal: zero · Legal limit: 10 ppbHighest utility average: 3.1 ppbRemoved by: PureGuard RO & PureGuard ULTRA
BromoformFound in 4 of 9 utilitiesHealth goal: zeroHighest utility average: 2.3 ppbRemoved by: AquaCarb PRO & AquaCarb ELITE, PureGuard RO & PureGuard ULTRA
Gross alpha radioactivityFound in 2 of 9 utilitiesHealth goal: zero · Legal limit: 15 pCi/LHighest utility average: 6.2 pCi/LRemoved by: PureGuard RO & PureGuard ULTRA
Radium (combined 226 + 228)Found in 2 of 9 utilitiesHealth goal: zero · Legal limit: 5 pCi/LHighest utility average: 1.5 pCi/LRemoved by: Water softener, PureGuard RO & PureGuard ULTRA
UraniumFound in 1 of 9 utilitiesHealth goal: zero · Legal limit: 30 ppbHighest utility average: 1.8 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 Fulshear serves about 21,315 people · hardness 7.4 gpg (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. | 2.2 ppb | 2.2 ppb | 10 ppb | Zero | PureGuard RO & PureGuard ULTRA |
| Bromodichloromethane Above health goal A trihalomethane disinfection byproduct. | 2 ppb | 5.7 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Bromoform Above health goal A trihalomethane disinfection byproduct. | 2.3 ppb | 8.1 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dichloroacetic acid Above health goal A haloacetic acid disinfection byproduct. | 1.6 ppb | 2.1 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. | 6.2 pCi/L | 6.5 pCi/L | 15 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. | 2.3 ppb | 7.9 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.25 ppm | 0.43 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Bromochloroacetic acid A haloacetic acid disinfection byproduct. | 1.3 ppb | 1.4 ppb | None | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 51.5 ppm | 148 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Chloroform A trihalomethane disinfection byproduct. | 1.8 ppb | 3.9 ppb | part of TTHMs | 70 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.037 ppm | 0.83 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Dibromoacetic acid A haloacetic acid disinfection byproduct. | 1.3 ppb | 1.5 ppb | part of HAA5 | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dibromochloromethane A trihalomethane disinfection byproduct. | 2.5 ppb | 7.6 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. | 0.32 ppm | 0.53 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. | 3.3 ppb | 9.1 ppb | 60 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.082 ppm | 0.27 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.013 ppm | 0.026 ppm | 0.05 taste/stain guideline (ppm) | None set | Water softener |
| Monochloroacetic acid A haloacetic acid disinfection byproduct. | 9.1 ppb | 9.1 ppb | part of HAA5 | 70 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Nickel A natural metal. No federal limit. | 1 ppb | 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. | 0.1 ppm | 0.11 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. | 77.7 ppm | 144 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 13.6 ppm | 23.5 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 305 ppm | 434 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. | 6.5 ppb | 20.4 ppb | 80 ppb | None set | AquaCarb PRO & AquaCarb ELITE 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 TX0790133. 632 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 TX0790133.
Fort Bend County Municipal Utility District 58 serves about 10,533 people · hardness 6.4 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. | 9.8 ppb | 16.4 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Bromoform Above health goal A trihalomethane disinfection byproduct. | 1.3 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. | 30.1 ppb | 46.7 ppb | part of HAA5 | Zero | AquaCarb PRO & AquaCarb ELITE 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. | 1.5 ppb | 3.3 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Aluminum Can discolor water. | 0.022 ppm | 0.022 ppm | 0.2 guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Atrazine A weed killer that runs off farm fields. | 0.11 ppb | 0.11 ppb | 3 ppb | 3 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.092 ppm | 0.19 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Bromochloroacetic acid A haloacetic acid disinfection byproduct. | 7.8 ppb | 9.4 ppb | None | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 43.3 ppm | 58 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Chloroform A trihalomethane disinfection byproduct. | 23.1 ppb | 32.7 ppb | part of TTHMs | 70 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.021 ppm | 0.1 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Cyanide From industrial discharge and some natural sources. | 170 ppb | 230 ppb | 200 ppb | 200 ppb | PureGuard RO & PureGuard ULTRA |
| Cyanide (free) From industrial discharge and some natural sources. | 120 ppb | 200 ppb | 200 ppb | 200 ppb | PureGuard RO & PureGuard ULTRA |
| Dibromoacetic acid A haloacetic acid disinfection byproduct. | 2.5 ppb | 3 ppb | part of HAA5 | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dibromochloromethane A trihalomethane disinfection byproduct. | 3.6 ppb | 5.2 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. | 0.29 ppm | 0.46 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. | 40.5 ppb | 58.3 ppb | 60 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.087 ppm | 0.22 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.0062 ppm | 0.0082 ppm | 0.05 taste/stain guideline (ppm) | None set | Water softener |
| Nickel A natural metal. No federal limit. | 2.3 ppb | 3.5 ppb | None | None set | Water softener PureGuard RO & PureGuard ULTRA |
| Nitrate From fertilizer, septic systems and natural deposits. High levels are dangerous for infants. | 0.45 ppm | 0.78 ppm | 10 ppm | 10 ppm | PureGuard RO & PureGuard ULTRA |
| Simazine A weed killer that runs off fields and roadsides. | 0.1 ppb | 0.1 ppb | 4 ppb | 4 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Sodium No federal limit. EPA advises 20 ppm or less for people on low-sodium diets. | 48.5 ppm | 102 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 32.8 ppm | 46 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 264 ppm | 349 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. | 40 ppb | 53.8 ppb | 80 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Trichloroacetic acid A haloacetic acid disinfection byproduct. | 8.7 ppb | 13 ppb | part of HAA5 | 20 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
Source: TCEQ Drinking Water Viewer, public water system ID TX0790458. 95 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 TX0790458.
Fort Bend County Municipal Utility District 57 serves about 5,335 people · hardness 3.4 gpg (slightly 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. | 3.1 ppb | 3.1 ppb | 10 ppb | Zero | PureGuard RO & PureGuard ULTRA |
| Bromodichloromethane Above health goal A trihalomethane disinfection byproduct. | 3.7 ppb | 5.4 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dichloroacetic acid Above health goal A haloacetic acid disinfection byproduct. | 10.9 ppb | 20.2 ppb | part of HAA5 | Zero | AquaCarb PRO & AquaCarb ELITE 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. | 0.97 ppb | 1.5 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.16 ppm | 0.16 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Bromochloroacetic acid A haloacetic acid disinfection byproduct. | 2.9 ppb | 4.6 ppb | None | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 87 ppm | 90 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Chloroform A trihalomethane disinfection byproduct. | 8.3 ppb | 16.5 ppb | part of TTHMs | 70 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.011 ppm | 0.04 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Cyanide From industrial discharge and some natural sources. | 110 ppb | 110 ppb | 200 ppb | 200 ppb | PureGuard RO & PureGuard ULTRA |
| Dibromoacetic acid A haloacetic acid disinfection byproduct. | 1.4 ppb | 1.8 ppb | part of HAA5 | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dibromochloromethane A trihalomethane disinfection byproduct. | 1.3 ppb | 1.5 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. | 0.74 ppm | 0.8 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. | 14.8 ppb | 27.4 ppb | 60 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.11 ppm | 0.11 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.008 ppm | 0.008 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. | 0.23 ppm | 0.4 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. | 128 ppm | 128 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 12.5 ppm | 13 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 431 ppm | 441 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. | 13.6 ppb | 23.1 ppb | 80 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Trichloroacetic acid A haloacetic acid disinfection byproduct. | 3 ppb | 5.9 ppb | part of HAA5 | 20 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
Source: TCEQ Drinking Water Viewer, public water system ID TX0790455. 46 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 TX0790455.
Cinco Southwest Municipal Utility District 3 Daycare serves about 5,187 people · 4 above health goals
| Contaminant | Average found | Highest found | Legal limit | EPA health goal | Removed by |
|---|---|---|---|---|---|
| Bromodichloromethane Above health goal A trihalomethane disinfection byproduct. | 7 ppb | 11.6 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Bromoform Above health goal A trihalomethane disinfection byproduct. | 1.4 ppb | 2.4 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dichloroacetic acid Above health goal A haloacetic acid disinfection byproduct. | 11.4 ppb | 23 ppb | part of HAA5 | Zero | AquaCarb PRO & AquaCarb ELITE 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 | 2.2 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Bromochloroacetic acid A haloacetic acid disinfection byproduct. | 3.9 ppb | 6.4 ppb | None | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Chloroform A trihalomethane disinfection byproduct. | 12.5 ppb | 23.3 ppb | part of TTHMs | 70 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.039 ppm | 0.13 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Dibromoacetic acid A haloacetic acid disinfection byproduct. | 1.6 ppb | 2.5 ppb | part of HAA5 | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dibromochloromethane A trihalomethane disinfection byproduct. | 2.7 ppb | 5.5 ppb | part of TTHMs | 60 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Haloacetic acids (HAA5) Disinfection byproducts that form when chlorine reacts with organic matter. Long-term exposure is linked to cancer. | 15.9 ppb | 31.2 ppb | 60 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Nitrate From fertilizer, septic systems and natural deposits. High levels are dangerous for infants. | 0.55 ppm | 0.73 ppm | 10 ppm | 10 ppm | PureGuard RO & PureGuard ULTRA |
| Total trihalomethanes (TTHMs) Disinfection byproducts that form when chlorine reacts with organic matter. Long-term exposure is linked to cancer. | 22.7 ppb | 33.3 ppb | 80 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Trichloroacetic acid A haloacetic acid disinfection byproduct. | 3.5 ppb | 6.6 ppb | part of HAA5 | 20 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
Source: TCEQ Drinking Water Viewer, public water system ID TX0790521. 46 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 TX0790521.
Fort Bend County Municipal Utility District 81 Weston Lakes serves about 3,855 people · hardness 8.9 gpg (hard) · 5 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. | 2.5 ppb | 2.5 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 pCi/L | 15 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. | 1.1 ppb | 2 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 |
| Uranium Above health goal A naturally radioactive metal in Texas groundwater. | 1.8 ppb | 2 ppb | 30 ppb | Zero | PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.27 ppm | 0.28 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 34.3 ppm | 37 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.2 ppm | 0.84 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Dibromochloromethane A trihalomethane disinfection byproduct. | 1 ppb | 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. | 0.17 ppm | 0.2 ppm | 4 ppm | 4 ppm | PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.044 ppm | 0.077 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.029 ppm | 0.029 ppm | 0.05 taste/stain guideline (ppm) | None set | Water softener |
| Nickel A natural metal. No federal limit. | 1.5 ppb | 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. | 0.14 ppm | 0.19 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. | 30.5 ppm | 32 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 13 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. | 262 ppm | 290 ppm | 500 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 TX0790268. 74 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 TX0790268.
Fort Bend County Municipal Utility District 156 serves about 1,719 people · 3 above health goals
| Contaminant | Average found | Highest found | Legal limit | EPA health goal | Removed by |
|---|---|---|---|---|---|
| Bromodichloromethane Above health goal A trihalomethane disinfection byproduct. | 2.9 ppb | 4.1 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dichloroacetic acid Above health goal A haloacetic acid disinfection byproduct. | 5.5 ppb | 7.5 ppb | part of HAA5 | Zero | AquaCarb PRO & AquaCarb ELITE 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. | 0.56 ppb | 0.56 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Bromochloroacetic acid A haloacetic acid disinfection byproduct. | 1.7 ppb | 2.2 ppb | None | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Chloroform A trihalomethane disinfection byproduct. | 6.7 ppb | 8.8 ppb | part of TTHMs | 70 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.035 ppm | 0.058 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Dibromoacetic acid A haloacetic acid disinfection byproduct. | 1.1 ppb | 1.1 ppb | part of HAA5 | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dibromochloromethane A trihalomethane disinfection byproduct. | 1.3 ppb | 1.3 ppb | part of TTHMs | 60 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Haloacetic acids (HAA5) Disinfection byproducts that form when chlorine reacts with organic matter. Long-term exposure is linked to cancer. | 13.5 ppb | 25.5 ppb | 60 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Monochloroacetic acid A haloacetic acid disinfection byproduct. | 17.5 ppb | 20.1 ppb | part of HAA5 | 70 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Nitrate From fertilizer, septic systems and natural deposits. High levels are dangerous for infants. | 0.41 ppm | 0.48 ppm | 10 ppm | 10 ppm | PureGuard RO & PureGuard ULTRA |
| Total trihalomethanes (TTHMs) Disinfection byproducts that form when chlorine reacts with organic matter. Long-term exposure is linked to cancer. | 9.8 ppb | 12.1 ppb | 80 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Trichloroacetic acid A haloacetic acid disinfection byproduct. | 1.8 ppb | 2.3 ppb | part of HAA5 | 20 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
Source: TCEQ Drinking Water Viewer, public water system ID TX0790541. 18 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 TX0790541.
Fort Bend County MUD 222 serves about 1,197 people · hardness 6.9 gpg (moderately hard) · 3 above health goals
| Contaminant | Average found | Highest found | Legal limit | EPA health goal | Removed by |
|---|---|---|---|---|---|
| Bromodichloromethane Above health goal A trihalomethane disinfection byproduct. | 2.3 ppb | 2.3 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Bromoform Above health goal A trihalomethane disinfection byproduct. | 2 ppb | 2.7 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE 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 | 2.8 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 99.3 ppm | 106 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. | 0.039 ppm | 0.19 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Dibromochloromethane A trihalomethane disinfection byproduct. | 2.3 ppb | 3.5 ppb | part of TTHMs | 60 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.062 ppm | 0.07 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.0043 ppm | 0.0044 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. | 0.25 ppm | 0.25 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. | 92.1 ppm | 105 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 10.1 ppm | 10.5 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 399 ppm | 424 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. | 6 ppb | 9.5 ppb | 80 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
Source: TCEQ Drinking Water Viewer, public water system ID TX0790607. 76 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 TX0790607.
Fulbrook Subdivision Water Plant serves about 807 people · hardness 8.5 gpg (hard) · 1 above health goals
| Contaminant | Average found | Highest found | Legal limit | EPA health goal | Removed by |
|---|---|---|---|---|---|
| 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. | 0.49 ppm | 0.49 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 37 ppm | 37 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.067 ppm | 0.2 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.065 ppm | 0.065 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.044 ppm | 0.044 ppm | 0.05 taste/stain guideline (ppm) | None set | Water softener |
| Sodium No federal limit. EPA advises 20 ppm or less for people on low-sodium diets. | 32.3 ppm | 32.3 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 270 ppm | 270 ppm | 500 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
Source: TCEQ Drinking Water Viewer, public water system ID TX0790385. 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 TX0790385.
Riverwood Forest serves about 744 people · hardness 8.1 gpg (hard) · 3 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 | 3.1 ppb | 10 ppb | Zero | PureGuard RO & PureGuard ULTRA |
| Bromodichloromethane Above health goal A trihalomethane disinfection byproduct. | 1.6 ppb | 1.6 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE 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 ppb | 4.2 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.26 ppm | 0.26 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 28 ppm | 28 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Chloroform A trihalomethane disinfection byproduct. | 3.8 ppb | 3.8 ppb | part of TTHMs | 70 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.13 ppm | 0.2 ppm | 1.3 action level (ppm) | 1.3 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 |
| 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. | 0.34 ppm | 0.36 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. | 27.9 ppm | 27.9 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 247 ppm | 247 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. | 5.4 ppb | 5.4 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 TX0790405. 27 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 TX0790405.
How We Treat Fulshear Water
This is what each of our systems does about the contaminants found in 77441.
| Found in 77441 | Water softener | AquaCarb PRO / ELITE | PureGuard RO / PureGuard ULTRA |
|---|---|---|---|
| Hardness (3.4–8.9 grains per gallon) | ✓ | – | ✓ |
| Arsenic | – | – | ✓ |
| Bromodichloromethane | – | ✓ | ✓ |
| Bromoform | – | ✓ | ✓ |
| Dichloroacetic acid | – | ✓ | ✓ |
| Gross alpha 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.