Is Brook, IN Tap Water Safe to Drink?
Graded B+, with 7 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
84.2/100
waterverge.com Brook, IN — Water Quality Report
Brook's drinking water received a grade of B+ (84.2 out of 100), indicating good water quality. The city's 2 water systems serve approximately 1,126 residents using groundwater.
Lead levels were measured at 0.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 59 violations on record, including 2 health-based violations. 7 remain unresolved.
What to know about Brook's water
Brook ranks #175 out of 414 cities in Indiana for water quality, placing it mid-range in the state.
Brook relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.
As a small community water system, Brook may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Brook, IN water safe to drink?
Brook's drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (84.2/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 1,126 residents using groundwater (wells).
Recent water quality updates for Brook
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Brook's water quality assessment. Grade: B+ (84.2/100).
Contaminants: Consumer Confidence Rule.
Contaminants: Consumer Confidence Rule.
Contaminants: Xylenes, Total, o-Dichlorobenzene, p-Dichlorobenzene.
Federal disaster declaration (FEMA DR-4363). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-3238). Hurricane event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Brook's water supply.
Well within EPA limits.
Violation history
Brook's water system has 59 total violations on record, including 2 health-based violations. 7 remain unresolved. 1 violation was issued in the last 5 years.
Flood & environmental risk
Newton County has experienced 3 federally declared disasters since 1991. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Iroquois River.
Where does Brook's water come from?
Brook's drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 1,126 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Iroquois River (river).
What Brook residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Brook's water.
Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.
Brook's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Flood & disaster history
Newton County has experienced 3 federally declared disasters since 1991. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 0.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Brook compares by contaminant
Explore where Brook ranks among all Indiana cities for specific contaminants.
Water source & infrastructure
Where Brook's water comes from
Brook's drinking water is drawn from underground aquifers through wells.
Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.
Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.
The system is operated by local government ownership and serves approximately 1,126 people through 2 water systems.
Water bodies near Brook
Brook is located near 1 notable water body. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Brook
| System Name | PWSID | Population | Source |
|---|---|---|---|
| BROOK WATER UTILITY | IN5256002 | 986 | GW |
| GEORGE ADE MEMORIAL HEALTH CARE CENTER | IN5256014 | 140 | GW |
How Brook compares
Full Indiana rankings →Brook's score of 84.2/100 is above the average of 70/100 among major Indiana cities. It outscores 7 of 10 nearby cities.
Nearby cities
View Indiana rankings →About Brook, IN
Wikipedia →Brook is a town in Iroquois Township, Newton County, in the U.S. state of Indiana. As of the 2020 census, Brook had a population of 939.
Learn more about your water
Guides and resources related to Brook's water quality findings.
Explore water quality across Newton
Frequently asked questions
Is Brook, IN tap water safe to drink?
Brook's water quality earned a grade of B+ (84.2/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #175 out of 414 cities tested in Indiana.
What contaminants are in Brook's water?
Lead was measured at 0.0 ppb (90th percentile). 59 violations are on record.
How is Brook's water quality grade calculated?
The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.
Do I need a water filter in Brook?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Brook's water come from?
Brook's water is sourced from Groundwater. The city has 2 water systems serving approximately 1,126 residents.
What health violations has Brook's water system had?
Brook has 2 health-based violations on record. The most recent violation was recorded in July 2022. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 7 violations remain unresolved.
Is Brook's groundwater at risk of contamination?
Brook uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 59 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does Brook's water compare to other cities?
Brook ranks #175 out of 414 cities in Indiana (better than 58% of state cities) and #6059 out of 15744 cities nationally (62th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.