ZIP 77065 Tap Water Quality Report
What the State of Texas found in the water utilities serving 77065 in Houston, TX, and how to treat it.
10contaminants found above EPA health goals in at least one utility
3.7–12.6grains 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 77065.
Lead (home tap samples)Found in 12 of 12 utilitiesHealth goal: zeroHighest utility average: 19.1 ppbRemoved by: PureGuard RO & PureGuard ULTRA
Dichloroacetic acidFound in 10 of 12 utilitiesHealth goal: zeroHighest utility average: 17.1 ppbRemoved by: AquaCarb PRO & AquaCarb ELITE, PureGuard RO & PureGuard ULTRA
BromodichloromethaneFound in 10 of 12 utilitiesHealth goal: zeroHighest utility average: 8.2 ppbRemoved by: AquaCarb PRO & AquaCarb ELITE, PureGuard RO & PureGuard ULTRA
BromoformFound in 8 of 12 utilitiesHealth goal: zeroHighest utility average: 4.5 ppbRemoved by: AquaCarb PRO & AquaCarb ELITE, PureGuard RO & PureGuard ULTRA
ArsenicFound in 7 of 12 utilitiesHealth goal: zero · Legal limit: 10 ppbHighest utility average: 5.6 ppbRemoved by: PureGuard RO & PureGuard ULTRA
Gross beta radioactivityFound in 5 of 12 utilitiesHealth goal: zeroHighest utility average: 8.6 pCi/LRemoved by: PureGuard RO & PureGuard ULTRA
UraniumFound in 3 of 12 utilitiesHealth goal: zero · Legal limit: 30 ppbHighest utility average: 17.8 ppbRemoved by: PureGuard RO & PureGuard ULTRA
Radium (combined 226 + 228)Found in 3 of 12 utilitiesHealth goal: zero · Legal limit: 5 pCi/LHighest utility average: 2.5 pCi/LRemoved by: Water softener, PureGuard RO & PureGuard ULTRA
Gross alpha radioactivityFound in 2 of 12 utilitiesHealth goal: zero · Legal limit: 15 pCi/LHighest utility average: 5 pCi/LRemoved by: PureGuard RO & PureGuard ULTRA
SeleniumFound in 1 of 12 utilitiesHealth goal: 50 ppb · Legal limit: 50 ppbHighest utility average: 57 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.
Harris County FWSD 61 serves about 15,400 people · hardness 3.8 gpg (moderately 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. | 5.3 ppb | 10.2 ppb | 10 ppb | Zero | PureGuard RO & PureGuard ULTRA |
| Bromodichloromethane Above health goal A trihalomethane disinfection byproduct. | 2.7 ppb | 6.2 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Bromoform Above health goal A trihalomethane disinfection byproduct. | 1.8 ppb | 9.1 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dichloroacetic acid Above health goal A haloacetic acid disinfection byproduct. | 7.9 ppb | 10.2 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 pCi/L | 4 pCi/L | 15 pCi/L | Zero | PureGuard RO & PureGuard ULTRA |
| Gross beta radioactivity Above health goal Radioactivity from natural and man-made sources. | 4.1 pCi/L | 4.1 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. | 3.9 ppb | 24 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Uranium Above health goal A naturally radioactive metal in Texas groundwater. | 2.3 ppb | 2.3 ppb | 30 ppb | Zero | PureGuard RO & PureGuard ULTRA |
| Atrazine A weed killer that runs off farm fields. | 0.55 ppb | 0.65 ppb | 3 ppb | 3 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.24 ppm | 0.34 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Bromochloroacetic acid A haloacetic acid disinfection byproduct. | 2.3 ppb | 2.8 ppb | None | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 34.6 ppm | 62 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Chloroform A trihalomethane disinfection byproduct. | 6.1 ppb | 11.3 ppb | part of TTHMs | 70 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.073 ppm | 1.1 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Cyanide From industrial discharge and some natural sources. | 70 ppb | 70 ppb | 200 ppb | 200 ppb | PureGuard RO & PureGuard ULTRA |
| Dibromoacetic acid A haloacetic acid disinfection byproduct. | 1.4 ppb | 1.6 ppb | part of HAA5 | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dibromochloromethane A trihalomethane disinfection byproduct. | 2 ppb | 12 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. | 0.82 ppm | 0.82 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. | 10.3 ppb | 18.6 ppb | 60 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.16 ppm | 1.2 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.013 ppm | 0.044 ppm | 0.05 taste/stain guideline (ppm) | None set | Water softener |
| Monochloroacetic acid A haloacetic acid disinfection byproduct. | 5.3 ppb | 7.3 ppb | part of HAA5 | 70 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Nickel A natural metal. No federal limit. | 1.6 ppb | 1.6 ppb | None | None set | Water softener PureGuard RO & PureGuard ULTRA |
| Nitrate From fertilizer, septic systems and natural deposits. High levels are dangerous for infants. | 0.28 ppm | 0.71 ppm | 10 ppm | 10 ppm | PureGuard RO & PureGuard ULTRA |
| Nitrate + nitrite From fertilizer, septic systems and natural deposits. High levels are dangerous for infants. | 0.14 ppm | 0.18 ppm | 10 ppm | 10 ppm | PureGuard RO & PureGuard ULTRA |
| Selenium A natural mineral that is harmful at high levels. | 5 ppb | 5 ppb | 50 ppb | 50 ppb | PureGuard RO & PureGuard ULTRA |
| Simazine A weed killer that runs off fields and roadsides. | 0.07 ppb | 0.07 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. | 44.7 ppm | 155 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 11.1 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. | 138 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. | 5.3 ppb | 17 ppb | 80 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Trichloroacetic acid A haloacetic acid disinfection byproduct. | 1.1 ppb | 1.1 ppb | part of HAA5 | 20 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Zinc Can give water a metallic taste. | 0.0077 ppm | 0.01 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 TX1010237. 208 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 TX1010237.
Harris County MUD 168 serves about 13,029 people · hardness 4.3 gpg (moderately 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. | 3.2 ppb | 3.2 ppb | 10 ppb | Zero | PureGuard RO & PureGuard ULTRA |
| Bromodichloromethane Above health goal A trihalomethane disinfection byproduct. | 2.7 ppb | 6.6 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Bromoform Above health goal A trihalomethane disinfection byproduct. | 2.8 ppb | 7.6 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dichloroacetic acid Above health goal A haloacetic acid disinfection byproduct. | 5.2 ppb | 8.2 ppb | part of HAA5 | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Gross beta radioactivity Above health goal Radioactivity from natural and man-made sources. | 4.2 pCi/L | 4.2 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. | 2.8 ppb | 36.2 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Atrazine A weed killer that runs off farm fields. | 0.13 ppb | 0.13 ppb | 3 ppb | 3 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.23 ppm | 0.32 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Bromochloroacetic acid A haloacetic acid disinfection byproduct. | 1.8 ppb | 3.5 ppb | None | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 51.4 ppm | 68 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Chloroform A trihalomethane disinfection byproduct. | 2.5 ppb | 8.7 ppb | part of TTHMs | 70 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.12 ppm | 0.93 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Cyanide From industrial discharge and some natural sources. | 60 ppb | 60 ppb | 200 ppb | 200 ppb | PureGuard RO & PureGuard ULTRA |
| Dibromoacetic acid A haloacetic acid disinfection byproduct. | 1.5 ppb | 4 ppb | part of HAA5 | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dibromochloromethane A trihalomethane disinfection byproduct. | 3.5 ppb | 10.4 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. | 0.54 ppm | 0.57 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. | 3.9 ppb | 9.2 ppb | 60 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.11 ppm | 0.4 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.016 ppm | 0.049 ppm | 0.05 taste/stain guideline (ppm) | None set | Water softener |
| Nickel A natural metal. No federal limit. | 1.4 ppb | 1.4 ppb | None | None set | Water softener PureGuard RO & PureGuard ULTRA |
| Nitrate From fertilizer, septic systems and natural deposits. High levels are dangerous for infants. | 1 ppm | 1.1 ppm | 10 ppm | 10 ppm | PureGuard RO & PureGuard ULTRA |
| Simazine A weed killer that runs off fields and roadsides. | 0.075 ppb | 0.08 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. | 60.5 ppm | 141 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 21.2 ppm | 28.5 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 232 ppm | 445 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. | 10.5 ppb | 26.3 ppb | 80 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Trichloroacetic acid A haloacetic acid disinfection byproduct. | 1.3 ppb | 1.6 ppb | part of HAA5 | 20 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
Source: TCEQ Drinking Water Viewer, public water system ID TX1011783. 287 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 TX1011783.
Harris County Municipal Utility District 188 serves about 9,279 people · hardness 5.3 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. | 7.4 ppb | 9.7 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Bromoform Above health goal A trihalomethane disinfection byproduct. | 1 ppb | 1 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dichloroacetic acid Above health goal A haloacetic acid disinfection byproduct. | 17.1 ppb | 29.7 ppb | part of HAA5 | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Gross beta radioactivity Above health goal Radioactivity from natural and man-made sources. | 5.3 pCi/L | 5.3 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. | 2.1 ppb | 4.2 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 |
| 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 | 0.12 ppb | 3 ppb | 3 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.051 ppm | 0.051 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Bromochloroacetic acid A haloacetic acid disinfection byproduct. | 5.4 ppb | 9 ppb | None | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 45 ppm | 45 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Chloroform A trihalomethane disinfection byproduct. | 13 ppb | 24.1 ppb | part of TTHMs | 70 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.079 ppm | 0.58 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Cyanide From industrial discharge and some natural sources. | 148 ppb | 240 ppb | 200 ppb | 200 ppb | PureGuard RO & PureGuard ULTRA |
| Dibromoacetic acid A haloacetic acid disinfection byproduct. | 1.6 ppb | 2.4 ppb | part of HAA5 | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dibromochloromethane A trihalomethane disinfection byproduct. | 2.5 ppb | 3.3 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. | 23.4 ppb | 39.3 ppb | 60 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Manganese Causes black staining and a bitter taste. | 0.0042 ppm | 0.0042 ppm | 0.05 taste/stain guideline (ppm) | None set | Water softener |
| Nickel A natural metal. No federal limit. | 1.8 ppb | 1.8 ppb | None | None set | Water softener PureGuard RO & PureGuard ULTRA |
| Nitrate From fertilizer, septic systems and natural deposits. High levels are dangerous for infants. | 0.67 ppm | 0.82 ppm | 10 ppm | 10 ppm | PureGuard RO & PureGuard ULTRA |
| Simazine A weed killer that runs off fields and roadsides. | 0.1 ppb | 0.11 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. | 28.8 ppm | 28.8 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 31 ppm | 31 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 231 ppm | 231 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. | 23.4 ppb | 35.8 ppb | 80 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Trichloroacetic acid A haloacetic acid disinfection byproduct. | 4.9 ppb | 8.7 ppb | part of HAA5 | 20 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
Source: TCEQ Drinking Water Viewer, public water system ID TX1011982. 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 TX1011982.
City of Jersey Village serves about 7,792 people · hardness 6.3 gpg (moderately 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. | 5.6 ppb | 7.4 ppb | 10 ppb | Zero | PureGuard RO & PureGuard ULTRA |
| Bromodichloromethane Above health goal A trihalomethane disinfection byproduct. | 7.9 ppb | 11 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Bromoform Above health goal A trihalomethane disinfection byproduct. | 4.5 ppb | 7.2 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dichloroacetic acid Above health goal A haloacetic acid disinfection byproduct. | 15.6 ppb | 27.1 ppb | part of HAA5 | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Gross beta radioactivity Above health goal Radioactivity from natural and man-made sources. | 5.1 pCi/L | 5.1 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. | 2.7 ppb | 7.7 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Selenium Above health goal A natural mineral that is harmful at high levels. | 57 ppb | 101 ppb | 50 ppb | 50 ppb | PureGuard RO & PureGuard ULTRA |
| Uranium Above health goal A naturally radioactive metal in Texas groundwater. | 8 ppb | 8 ppb | 30 ppb | Zero | PureGuard RO & PureGuard ULTRA |
| Atrazine A weed killer that runs off farm fields. | 0.14 ppb | 0.15 ppb | 3 ppb | 3 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.21 ppm | 0.23 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Bromochloroacetic acid A haloacetic acid disinfection byproduct. | 5.3 ppb | 7.4 ppb | None | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 56 ppm | 63 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Chloroform A trihalomethane disinfection byproduct. | 15.3 ppb | 30.2 ppb | part of TTHMs | 70 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.063 ppm | 0.26 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Dibromoacetic acid A haloacetic acid disinfection byproduct. | 1.9 ppb | 4 ppb | part of HAA5 | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dibromochloromethane A trihalomethane disinfection byproduct. | 3.5 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. | 0.66 ppm | 0.66 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. | 22.4 ppb | 36.9 ppb | 60 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.086 ppm | 0.15 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 |
| Nickel A natural metal. No federal limit. | 1.3 ppb | 1.3 ppb | None | None set | Water softener PureGuard RO & PureGuard ULTRA |
| Nitrate From fertilizer, septic systems and natural deposits. High levels are dangerous for infants. | 0.53 ppm | 1.1 ppm | 10 ppm | 10 ppm | PureGuard RO & PureGuard ULTRA |
| Nitrate + nitrite From fertilizer, septic systems and natural deposits. High levels are dangerous for infants. | 0.4 ppm | 0.55 ppm | 10 ppm | 10 ppm | PureGuard RO & PureGuard ULTRA |
| Simazine A weed killer that runs off fields and roadsides. | 0.093 ppb | 0.12 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. | 93.3 ppm | 154 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 12 ppm | 15 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 360 ppm | 433 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. | 28.7 ppb | 43.5 ppb | 80 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Trichloroacetic acid A haloacetic acid disinfection byproduct. | 5 ppb | 8.6 ppb | part of HAA5 | 20 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Zinc Can give water a metallic taste. | 0.0082 ppm | 0.0082 ppm | 5 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
Also detected (no federal limit or health goal): Gross Alpha, Incl. Radon & U, Hexadecanoic Acid.
Source: TCEQ Drinking Water Viewer, public water system ID TX1010016. 78 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 TX1010016.
Harris County Municipal Utility District 222 serves about 6,129 people · hardness 5.3 gpg (moderately 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. | 2.6 ppb | 2.6 ppb | 10 ppb | Zero | PureGuard RO & PureGuard ULTRA |
| Bromodichloromethane Above health goal A trihalomethane disinfection byproduct. | 2.3 ppb | 3 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dichloroacetic acid Above health goal A haloacetic acid disinfection byproduct. | 10.7 ppb | 10.7 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. | 1.9 ppb | 3.4 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. | 0.23 ppm | 0.23 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Bromochloroacetic acid A haloacetic acid disinfection byproduct. | 2.3 ppb | 2.3 ppb | None | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 32.3 ppm | 39.7 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Chloroform A trihalomethane disinfection byproduct. | 6.4 ppb | 6.6 ppb | part of TTHMs | 70 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.24 ppm | 0.66 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Cyanide From industrial discharge and some natural sources. | 160 ppb | 160 ppb | 200 ppb | 200 ppb | PureGuard RO & PureGuard ULTRA |
| Dibromochloromethane A trihalomethane disinfection byproduct. | 1.5 ppb | 1.7 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. | 10.7 ppb | 10.7 ppb | 60 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.024 ppm | 0.024 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Nitrate From fertilizer, septic systems and natural deposits. High levels are dangerous for infants. | 0.4 ppm | 0.61 ppm | 10 ppm | 10 ppm | PureGuard RO & PureGuard ULTRA |
| Selenium A natural mineral that is harmful at high levels. | 3.8 ppb | 3.8 ppb | 50 ppb | 50 ppb | PureGuard RO & PureGuard ULTRA |
| Sodium No federal limit. EPA advises 20 ppm or less for people on low-sodium diets. | 38.4 ppm | 40.7 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 14.8 ppm | 15.6 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 198 ppm | 260 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. | 6.9 ppb | 11.3 ppb | 80 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Zinc Can give water a metallic taste. | 0.0061 ppm | 0.0061 ppm | 5 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
Source: TCEQ Drinking Water Viewer, public water system ID TX1013054. 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 TX1013054.
West Harris County Municipal Utility District 9 serves about 5,961 people · hardness 10.1 gpg (hard) · 9 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. | 1.1 ppb | 1.2 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. | 5 pCi/L | 5 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. | 19.1 ppb | 47.1 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. | 2.5 pCi/L | 2.5 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. | 2.5 pCi/L | 2.5 pCi/L | 5 combined (pCi/L) | Zero | Water softener PureGuard RO & PureGuard ULTRA |
| Uranium Above health goal A naturally radioactive metal in Texas groundwater. | 17.8 ppb | 17.8 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. | 51 ppm | 51 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.068 ppm | 0.21 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 |
| 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 |
| Nickel A natural metal. No federal limit. | 1.3 ppb | 1.3 ppb | None | None set | Water softener PureGuard RO & PureGuard ULTRA |
| Nitrate From fertilizer, septic systems and natural deposits. High levels are dangerous for infants. | 0.18 ppm | 0.18 ppm | 10 ppm | 10 ppm | PureGuard RO & PureGuard ULTRA |
| Selenium A natural mineral that is harmful at high levels. | 6.2 ppb | 6.2 ppb | 50 ppb | 50 ppb | PureGuard RO & PureGuard ULTRA |
| Sodium No federal limit. EPA advises 20 ppm or less for people on low-sodium diets. | 33.7 ppm | 33.7 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 288 ppm | 288 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. | 2.2 ppb | 2.4 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 TX1011798. 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 TX1011798.
Harris County Municipal Utility District 130 serves about 4,572 people · hardness 8.3 gpg (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. | 8.2 ppb | 11.3 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Bromoform Above health goal A trihalomethane disinfection byproduct. | 1.6 ppb | 3 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dichloroacetic acid Above health goal A haloacetic acid disinfection byproduct. | 14.8 ppb | 30.3 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. | 0.94 ppb | 1.1 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Aluminum Can discolor water. | 0.032 ppm | 0.032 ppm | 0.2 guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Atrazine A weed killer that runs off farm fields. | 0.13 ppb | 0.14 ppb | 3 ppb | 3 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.12 ppm | 0.12 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Bromochloroacetic acid A haloacetic acid disinfection byproduct. | 5.5 ppb | 8.5 ppb | None | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 47 ppm | 47 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Chloroform A trihalomethane disinfection byproduct. | 15 ppb | 28.9 ppb | part of TTHMs | 70 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.19 ppm | 0.59 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Cyanide From industrial discharge and some natural sources. | 85 ppb | 110 ppb | 200 ppb | 200 ppb | PureGuard RO & PureGuard ULTRA |
| Dibromoacetic acid A haloacetic acid disinfection byproduct. | 1.7 ppb | 2.2 ppb | part of HAA5 | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dibromochloromethane A trihalomethane disinfection byproduct. | 3.1 ppb | 5.1 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. | 0.26 ppm | 0.26 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. | 21 ppb | 41.8 ppb | 60 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.018 ppm | 0.018 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.0038 ppm | 0.0038 ppm | 0.05 taste/stain guideline (ppm) | None set | Water softener |
| Monochloroacetic acid A haloacetic acid disinfection byproduct. | 2.4 ppb | 2.4 ppb | part of HAA5 | 70 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Nickel A natural metal. No federal limit. | 1.5 ppb | 1.5 ppb | None | None set | Water softener PureGuard RO & PureGuard ULTRA |
| Nitrate From fertilizer, septic systems and natural deposits. High levels are dangerous for infants. | 0.59 ppm | 1 ppm | 10 ppm | 10 ppm | PureGuard RO & PureGuard ULTRA |
| Simazine A weed killer that runs off fields and roadsides. | 0.087 ppb | 0.11 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. | 38.1 ppm | 38.1 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 37 ppm | 37 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 298 ppm | 298 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. | 27.3 ppb | 42.4 ppb | 80 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Trichloroacetic acid A haloacetic acid disinfection byproduct. | 4.8 ppb | 10.9 ppb | part of HAA5 | 20 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
Also detected (no federal limit or health goal): Hexadecanoic Acid, Octadecanoic Acid.
Source: TCEQ Drinking Water Viewer, public water system ID TX1012097. 66 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 TX1012097.
Harris County Municipal Utility District 69 serves about 4,458 people · hardness 4.3 gpg (moderately 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. | 2.3 ppb | 2.3 ppb | 10 ppb | Zero | PureGuard RO & PureGuard ULTRA |
| Bromodichloromethane Above health goal A trihalomethane disinfection byproduct. | 2.2 ppb | 2.5 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Bromoform Above health goal A trihalomethane disinfection byproduct. | 1.3 ppb | 1.5 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dichloroacetic acid Above health goal A haloacetic acid disinfection byproduct. | 1.1 ppb | 1.1 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. | 2.1 ppb | 6.5 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.23 ppm | 0.23 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 30.6 ppm | 31.1 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Chloroform A trihalomethane disinfection byproduct. | 3.2 ppb | 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. | 0.029 ppm | 0.16 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Dibromochloromethane A trihalomethane disinfection byproduct. | 2.1 ppb | 2.6 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. | 1.1 ppb | 1.1 ppb | 60 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.023 ppm | 0.024 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.012 ppm | 0.013 ppm | 0.05 taste/stain guideline (ppm) | None set | Water softener |
| Nickel A natural metal. No federal limit. | 1.5 ppb | 1.5 ppb | None | None set | Water softener PureGuard RO & PureGuard ULTRA |
| Nitrate From fertilizer, septic systems and natural deposits. High levels are dangerous for infants. | 0.17 ppm | 0.18 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. | 27.8 ppm | 28.4 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 9.6 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. | 174 ppm | 200 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 | 7.3 ppb | 80 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Zinc Can give water a metallic taste. | 0.0075 ppm | 0.0075 ppm | 5 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
Source: TCEQ Drinking Water Viewer, public water system ID TX1010600. 37 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 TX1010600.
Northwest Harris County Municipal Utility District 29 serves about 3,000 people · hardness 3.7 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. | 2.4 ppb | 3.7 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Bromoform Above health goal A trihalomethane disinfection byproduct. | 1.2 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. | 11.3 ppb | 11.3 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. | 0.93 ppb | 1.4 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Atrazine A weed killer that runs off farm fields. | 0.17 ppb | 0.17 ppb | 3 ppb | 3 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.051 ppm | 0.051 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Bromochloroacetic acid A haloacetic acid disinfection byproduct. | 2.8 ppb | 2.8 ppb | None | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 44.8 ppm | 49.5 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Chloroform A trihalomethane disinfection byproduct. | 5.4 ppb | 7.7 ppb | part of TTHMs | 70 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.093 ppm | 0.31 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Cyanide From industrial discharge and some natural sources. | 120 ppb | 120 ppb | 200 ppb | 200 ppb | PureGuard RO & PureGuard ULTRA |
| Dibromochloromethane A trihalomethane disinfection byproduct. | 1.6 ppb | 1.8 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. | 11.3 ppb | 11.3 ppb | 60 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.13 ppm | 0.19 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.015 ppm | 0.022 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 |
| Nitrate From fertilizer, septic systems and natural deposits. High levels are dangerous for infants. | 0.69 ppm | 0.69 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. | 45.1 ppm | 53.5 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 15.9 ppm | 22.2 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 188 ppm | 214 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 | 12.9 ppb | 80 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
Source: TCEQ Drinking Water Viewer, public water system ID TX1012293. 71 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 TX1012293.
Timberlake Improvement District serves about 2,688 people · hardness 3.8 gpg (moderately 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. | 2.2 ppb | 2.2 ppb | 10 ppb | Zero | PureGuard RO & PureGuard ULTRA |
| Bromodichloromethane Above health goal A trihalomethane disinfection byproduct. | 2.1 ppb | 2.9 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Bromoform Above health goal A trihalomethane disinfection byproduct. | 2.5 ppb | 2.6 ppb | part of TTHMs | Zero | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dichloroacetic acid Above health goal A haloacetic acid disinfection byproduct. | 5.6 ppb | 5.6 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. | 3.2 ppb | 14.1 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.22 ppm | 0.22 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Bromochloroacetic acid A haloacetic acid disinfection byproduct. | 1.9 ppb | 1.9 ppb | None | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 55.2 ppm | 168 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Chloroform A trihalomethane disinfection byproduct. | 4.9 ppb | 4.9 ppb | part of TTHMs | 70 ppb | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.03 ppm | 0.17 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Dibromoacetic acid A haloacetic acid disinfection byproduct. | 1 ppb | 1 ppb | part of HAA5 | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Dibromochloromethane A trihalomethane disinfection byproduct. | 2.7 ppb | 3.6 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. | 3.3 ppb | 5.6 ppb | 60 ppb | None set | AquaCarb PRO & AquaCarb ELITE PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.052 ppm | 0.052 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.011 ppm | 0.011 ppm | 0.05 taste/stain guideline (ppm) | None set | Water softener |
| Nickel A natural metal. No federal limit. | 1.6 ppb | 1.6 ppb | None | None set | Water softener PureGuard RO & PureGuard ULTRA |
| Nitrate From fertilizer, septic systems and natural deposits. High levels are dangerous for infants. | 0.15 ppm | 0.16 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. | 50.5 ppm | 87.8 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 16.8 ppm | 22 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 219 ppm | 330 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. | 8.1 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 TX1010447. 65 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 TX1010447.
Westgate Subdivision serves about 153 people · hardness 12.6 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. | 2 ppb | 5.9 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Barium A natural metal. High levels can raise blood pressure. | 0.3 ppm | 0.3 ppm | 2 ppm | 2 ppm | Water softener PureGuard RO & PureGuard ULTRA |
| Chloride Gives water a salty taste. | 70 ppm | 70 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.025 ppm | 0.056 ppm | 1.3 action level (ppm) | 1.3 ppm | PureGuard RO & PureGuard ULTRA |
| Iron Causes rust stains and a metallic taste. | 0.017 ppm | 0.017 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Nickel A natural metal. No federal limit. | 1.7 ppb | 1.7 ppb | None | None set | Water softener PureGuard RO & PureGuard ULTRA |
| Nitrate From fertilizer, septic systems and natural deposits. High levels are dangerous for infants. | 0.17 ppm | 0.17 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. | 40.6 ppm | 40.6 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Total dissolved solids (TDS) Everything dissolved in the water. High TDS affects taste. | 366 ppm | 366 ppm | 500 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Zinc Can give water a metallic taste. | 0.088 ppm | 0.088 ppm | 5 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
Source: TCEQ Drinking Water Viewer, public water system ID TX1010622. 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 TX1010622.
Cypress Place serves about 147 people · hardness 10.1 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. | 0.62 ppb | 0.62 ppb | 15 action level (ppb) | Zero | PureGuard RO & PureGuard ULTRA |
| Aluminum Can discolor water. | 0.059 ppm | 0.059 ppm | 0.2 guideline (ppm) | None set | 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. | 45 ppm | 45 ppm | 250 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Copper (home tap samples) Usually comes from household copper plumbing. | 0.036 ppm | 0.12 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. | 0.12 ppm | 0.12 ppm | 0.3 taste/stain guideline (ppm) | None set | Water softener |
| Manganese Causes black staining and a bitter taste. | 0.0017 ppm | 0.0017 ppm | 0.05 taste/stain guideline (ppm) | None set | Water softener |
| Nickel A natural metal. No federal limit. | 2.5 ppb | 2.5 ppb | None | None set | Water softener PureGuard RO & PureGuard ULTRA |
| Nitrate From fertilizer, septic systems and natural deposits. High levels are dangerous for infants. | 0.17 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. | 27.1 ppm | 27.1 ppm | None | None set | PureGuard RO & PureGuard ULTRA |
| Sulfate Can give water a bitter taste. | 5 ppm | 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. | 289 ppm | 289 ppm | 500 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
| Zinc Can give water a metallic taste. | 0.033 ppm | 0.033 ppm | 5 taste guideline (ppm) | None set | PureGuard RO & PureGuard ULTRA |
Source: TCEQ Drinking Water Viewer, public water system ID TX1010254. 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 TX1010254.
How We Treat Houston Water
This is what each of our systems does about the contaminants found in 77065.
| Found in 77065 | Water softener | AquaCarb PRO / ELITE | PureGuard RO / PureGuard ULTRA |
|---|---|---|---|
| Hardness (3.7–12.6 grains per gallon) | ✓ | – | ✓ |
| Arsenic | – | – | ✓ |
| Bromodichloromethane | – | ✓ | ✓ |
| Bromoform | – | ✓ | ✓ |
| Dichloroacetic acid | – | ✓ | ✓ |
| Gross alpha radioactivity | – | – | ✓ |
| Gross beta radioactivity | – | – | ✓ |
| Lead (home tap samples) | – | – | ✓ |
| Radium (combined 226 + 228) | ✓ | – | ✓ |
| Selenium | – | – | ✓ |
| 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.