← Back to search

City Of Coleman

Coleman, TX · serves 4,709 · Surface waterTX0420001
Worth watching
Lead service line status not yet inventoried. Utilities are required to publish inventories under the federal Lead and Copper Rule by their state's deadline. If you live in a pre-1986 building, testing your tap water is the most direct answer.
See filter recommendations →
Not your system? Search your address:
Measured in your 2025 water report
From your utility's Consumer Confidence Report · 11 contaminants tested
Above limit
Approaching limit
Within limits
Regulated contaminants — legally enforceable limits
Barium▸
0.0866 mg/L
MCLlegally enforceable
What is it?
A naturally occurring metal found in mineral deposits. Enters water through erosion of natural deposits or discharge from drilling and metal refining operations.
Why it matters
At high levels, barium can cause increased blood pressure. Levels well below the MCL of 2 mg/L are not a health concern.
What to do
No action needed at typical detection levels. Barium is rarely found near its MCL in treated drinking water.
Cyanide▸
0.09 mg/L
MCLlegally enforceable
What is it?
Enters water from discharge from steel/metal factories and plastic and fertilizer factories.
Why it matters
Exposure above the MCL of 0.2 mg/L can cause nerve damage and thyroid problems.
What to do
Cyanide is rarely detected in drinking water. If found near the MCL, contact your utility.
Fluoride▸
0.17 mg/L
MCLlegally enforceable
What is it?
Naturally occurring mineral, also added to many water systems to prevent tooth decay. The MCL (4 mg/L) is much higher than the typical added amount (0.7 mg/L).
Why it matters
At levels near the MCL, long-term exposure can cause skeletal fluorosis (bone pain and tenderness). The secondary standard of 2 mg/L triggers a required public notice about dental fluorosis risk in children.
What to do
Levels below 2 mg/L are within the range considered safe. If above 2 mg/L, children under 9 may be at risk for dental fluorosis — talk to your pediatric dentist.
What the research says
Multiple peer-reviewed studies have found lower IQ in children and potential thyroid disruption at concentrations as low as 1.5 mg/L — 3x below the US federal limit.
Nitrate (as N)▸
0.32 mg/L
MCLlegally enforceable
What is it?
Comes from fertilizer runoff, septic systems, and erosion of natural deposits. One of the most common groundwater contaminants in agricultural areas.
Why it matters
Nitrate above 10 mg/L can cause "blue baby syndrome" (methemoglobinemia) in infants under 6 months — it interferes with blood's ability to carry oxygen. Adults can tolerate higher levels.
What to do
If you have an infant on formula and your water is above 5 mg/L, consider using bottled water for formula preparation. Boiling water does NOT remove nitrate — it concentrates it.
What the research says
Multiple peer-reviewed studies have found neural tube defects, preterm birth, and low birth weight at concentrations as low as 5 mg/L — 2x below the US federal limit.
Lead & copper — tested at your tap
Copper▸
0.128 mg/L
Action levellegally enforceable
What is it?
Leaches from copper household plumbing and pipes. Some copper is a normal part of drinking water infrastructure.
Why it matters
Short-term exposure above the action level of 1.3 mg/L can cause gastrointestinal distress. Long-term exposure can cause liver and kidney damage. At typical detected levels (well below the AL), copper is not a health concern.
What to do
If above the action level, run your tap for 30 seconds before drinking. Copper levels decrease as water flows through the pipes.
Disinfection byproducts
HAA5▸
26 µg/L
MCLlegally enforceable
What is it?
Another group of disinfection byproducts formed when chlorine reacts with natural organic matter. HAA5 measures the five most common species.
Why it matters
Long-term exposure above the MCL of 60 µg/L (0.060 mg/L) is associated with increased cancer risk. Like THMs, the MCL is based on a running annual average.
What to do
Activated carbon filters can reduce HAA5. If your system consistently approaches the limit, a reverse osmosis filter provides more complete removal.
DBCM▸
43.5 µg/L
MCLGhealth goal, unenforced
What is it?
A brominated trihalomethane formed when chlorine reacts with bromide-containing organic matter. More common in source waters with higher bromide levels — often coastal or groundwater systems.
Why it matters
EPA sets the MCLG at 0.06 mg/L based on liver and kidney effects. Some evidence suggests DBCM may be carcinogenic, though the data is less clear than for BDCM and bromoform. Regulated together with the other three trihalomethanes under TTHM.
What to do
Like other THMs, DBCM forms in the distribution system as chlorine reacts over time. A point-of-use carbon-block filter (NSF/ANSI 53) reduces it along with related compounds.
TTHM▸
65 µg/L
MCLlegally enforceable
What is it?
Formed when chlorine used to disinfect water reacts with natural organic matter. Includes chloroform, bromoform, and related compounds. The trade-off: disinfection prevents waterborne disease, but creates these byproducts.
Why it matters
Long-term exposure above the MCL of 80 µg/L (0.080 mg/L) is associated with increased cancer risk and possible reproductive effects. The MCL is based on a running annual average, not a single sample.
What to do
If your system is near or above the limit, an activated carbon filter (including pitcher filters like Brita) can reduce THMs. Running water for a minute before drinking also helps, as THMs are volatile and dissipate.
WHO recommendation
Nickel▸
0.0015 mg/L
WHO guidelineinternational, unenforced
What is it?
A metal that enters water from natural deposits and industrial discharge. The federal MCL was remanded (withdrawn) in 1995 but monitoring continues.
Why it matters
No current federal MCL. At typical detection levels, nickel in drinking water is not considered a health concern for most people. People with nickel allergies may be more sensitive.
What to do
No action needed at typical detection levels.
% of limit

CCR data in early access — values are extracted from utility PDFs and may contain errors. Verify with your utility's 2025 CCR report.

Source: CITY OF COLEMAN Consumer Confidence Report 2025 · Extracted by WaterScore
Measured data
Private Well Risk

Do you have or use a private well? Measured concentrations from nearby private wells sampled within 5 miles.

Details ↓
Surface water
Water Sources

Coleman draws from surface water — Intake 1 - Lake Coleman, Intake 2 - Hords Creek Lake, and Intake 3 - Lk Scarbarough. Drought directly affects reservoir levels and river flow.

Details ↓
Spatial context
Your area on the map
Open full map →