WaterVerge

Is Collinwood, TN 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 ↓

3K residents served 1 water system PWSID: TN0000127
Overall Score
79.8 / 100
Violations
7 active
Last Updated
May 2026
Source
Ground water under influence
#222 of 299 in Tennessee Top 52% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
BGRADE
Water Quality Grade
79.8/100
waterverge.com
B 79.8/100

Collinwood, TN — Water Quality Report

Collinwood's drinking water received a grade of B (79.8 out of 100), indicating good water quality. The city's 1 water system serves approximately 3,076 residents using ground water under influence.

Lead levels were measured at 0.2 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 78 violations on record, including 54 health-based violations. 7 remain unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Collinwood's water

Collinwood ranks #222 out of 299 cities in Tennessee for water quality, placing it below average in the state.

Collinwood 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, Collinwood may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

Quality Breakdown

Water quality score

See methodology →
79.8 out of 100 Grade B
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
31.3/45
C
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.2 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
3.5/5
C
Water source: Ground water under influence.
Water Safety

Is Collinwood, TN water safe to drink?

Concerns Identified

Collinwood's drinking water has significant quality concerns based on EPA testing data. With a grade of B (79.8/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 3,076 residents using groundwater (wells).

7
Active Violations
0.2 ppb
Lead (90th %ile)
5 events
Disaster History

Recent water quality updates for Collinwood

A timeline of significant water quality events, violations, and data updates.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Collinwood's water quality assessment. Grade: B (79.8/100).

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

Disaster
SEVERE STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES

Federal disaster declaration (FEMA DR-4427). Flood event — may have impacted local water infrastructure.

Disaster
HURRICANE KATRINA EVACUATION

Federal disaster declaration (FEMA DR-3217). Hurricane event — may have impacted local water infrastructure.

Key contaminant findings

Based on the most recent EPA sampling data for Collinwood's water supply.

Lead Within Limits
Detected: 0.2 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Collinwood's water system has 78 total violations on record, including 54 health-based violations. 7 remain unresolved. 3 violations were issued in the last 5 years.

OtherMRTT
Most recent violations:
Jul 2024 Consumer Confidence Rule Open
Jul 2023 Consumer Confidence Rule Open
Jan 2022 Lead and Copper Rule Open
Oct 2018 TTHM Resolved
Oct 2018 Total Haloacetic Acids (HAA5) Resolved

Flood & environmental risk

Wayne County has experienced 5 federally declared disasters since 1973. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies.

SEVERE STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA DR-4427
HURRICANE KATRINA EVACUATION
Hurricane FEMA DR-3217
SEVERE STORMS & FLOODING
Flood FEMA DR-910

Where does Collinwood's water come from?

Collinwood's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 3,076 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Collinwood residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Collinwood's water.

Request your utility's CCR

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.

Monitor alerts during storms

Collinwood'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.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
0.2 ppb
EPA Action Level: 15 ppb · 1% of limit
Safe Level
Compliance Record

Violation summary

78
Total violations
54
Health-based
7
Active / unresolved
Jul 2024
Most recent violation
Compliance Record

Violations & advisories

78 Total
7 Active
54 Health-based
71 Resolved
Violations by category
Surface Water Treatment Rule
55
Total Coliform Rule
7
Synthetic Organic Chemicals
5
Consumer Confidence Rule
2
Stage 2 Disinfectants and Disinfection Byproducts Rule
2
Jul 2024 Active
Consumer Confidence Rule
Other Violation 0
Jul 2023 Active
Consumer Confidence Rule
Other Violation 0
Jan 2022 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2018 Active
Public Notice
Other Violation 0
Jul 2017 Active
Long Term 2 Enhanced Surface Water Treatment Rule
Monitoring & Reporting
Monitoring & Reporting 0
May 2007 Active
Interim Enhanced Surface Water Treatment Rule
Other Violation 0
Active
Compliance Violation
Monitoring 0
Oct 2018 Resolved
TTHM
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2018
Oct 2018 Resolved
Total Haloacetic Acids (HAA5)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2018
Jan 2014 Resolved
Simazine
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2016
Jan 2014 Resolved
Picloram
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2016
Jan 2014 Resolved
Atrazine
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2016
Jan 2014 Resolved
2,4-D
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2016
Jan 2013 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jan 2013
Dec 2012 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2012
Jul 2000 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jul 2000
Jun 2000 Resolved
Surface Water Treatment Rule
Treatment Technique
Health-Based Health Resolved Jun 2000
Jun 2000 Resolved
Surface Water Treatment Rule
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 2000
May 2000 Resolved
Surface Water Treatment Rule
Treatment Technique
Health-Based Health Resolved May 2000
Apr 2000 Resolved
Surface Water Treatment Rule
Treatment Technique
Health-Based Health Resolved Apr 2000
Showing 20 of 78 violations
Site context

Superfund sites within 10 miles of Collinwood

Superfund sites nearby

Federally tracked hazardous-waste sites on the EPA National Priorities List. Proximity does not necessarily indicate tap-water contamination — the connection depends on hydrology and treatment.

Source: EPA Superfund National Priorities List

Environmental Risk

Drought conditions

D3 — extreme drought

Wayne County is currently in D3 (extreme drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.

7
Weeks at D2+ (current streak)
8.3%
Months in D2+ (last 30y)
7
Weeks at D2+ (last 5y)

Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.

Environmental Risk

Flood & disaster history

5
Declared disasters
Apr 2019
Most recent
Flood
Most common type

Wayne County has experienced 5 federally declared disasters since 1973. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Apr 2019
SEVERE STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA #4427
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3217
Jun 1991
SEVERE STORMS & FLOODING
Flood FEMA #910
Mar 1975
SEVERE STORMS & FLOODING
Flood FEMA #459
Mar 1973
HEAVY RAINS & FLOODING
Flood FEMA #366

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.2 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 2.8 ppb from 1993 (3.0 ppb) to 2025 (0.2 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Ground Water Under Influence
Operator
Local Government
Population Served
3,076
Water Systems
1
Water Source

Where Collinwood's water comes from

Ground Water Under Influence

Collinwood'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 3,076 people through 1 water system.

Infrastructure

Water systems serving Collinwood

System Name PWSID Population Source
COLLINWOOD WATER DEPT TN0000127 3,076 GU
Regional Comparison

How Collinwood compares

Full Tennessee rankings →

Collinwood's score of 79.8/100 is on par with the average of 75/100 among major Tennessee cities. It outscores 6 of 10 nearby cities.

Collinwood (this city)
79.8
Memphis
66.2
Tennessee avg
75
City Profile

About Collinwood, TN

Economic Profile
$51,190
Median Income
$95,603
Median Home Value
$521/mo
Median Rent
5.6%
Unemployment
Community
35.4
Median Age
170
People / sq mi
9.7%
College Educated
74.2%
Homeownership
Share this reportHelp others learn about their water quality
WhatsAppXFacebookLinkedInEmail

Frequently asked questions

Is Collinwood, TN tap water safe to drink?

Collinwood's water quality earned a grade of B (79.8/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #222 out of 299 cities tested in Tennessee.

What contaminants are in Collinwood's water?

Lead was measured at 0.2 ppb (90th percentile). 78 violations are on record.

How is Collinwood'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 Collinwood?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Collinwood's water come from?

Collinwood's water is sourced from Ground water under influence. The city has 1 water system serving approximately 3,076 residents.

What health violations has Collinwood's water system had?

Collinwood has 54 health-based violations on record. The most recent violation was recorded in July 2024. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 7 violations remain unresolved.

Is Collinwood's groundwater at risk of contamination?

Collinwood 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 78 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 Collinwood's water compare to other cities?

Collinwood ranks #222 out of 299 cities in Tennessee (better than 26% of state cities) and #8128 out of 15744 cities nationally (48th percentile). The grade of B reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Collinwood's small water system affect quality?

Collinwood's system serves approximately 3,076 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 78 violations on record.