WaterVerge

Is Purdin, MO Tap Water Safe to Drink?

Graded A-, with 2 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

1K residents served 1 water system PWSID: MO2024346
Overall Score
85.3 / 100
Violations
2 active
Last Updated
May 2026
Source
Groundwater
#220 of 509 in Missouri Top 34% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
A-GRADE
Water Quality Grade
85.3/100
waterverge.com
A- 85.3/100

Purdin, MO — Water Quality Report

Purdin's drinking water received a grade of A- (85.3 out of 100), indicating good water quality. The city's 1 water system serves approximately 1,420 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 6 violations on record, including 2 health-based violations. 2 remain unresolved.

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

What to know about Purdin's water

Purdin ranks #220 out of 509 cities in Missouri for water quality, placing it mid-range in the state.

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

Quality Breakdown

Water quality score

See methodology →
85.3 out of 100 Grade A-
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
38.3/45
B
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
5/10
D
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Purdin, MO water safe to drink?

Use Caution

Purdin's tap water meets most EPA standards but has areas that warrant attention. With a grade of A- (85.3/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 1,420 residents using groundwater (wells).

2
Active Violations
0.0 ppb
Lead (90th %ile)
2 events
Disaster History

Recent water quality updates for Purdin

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Purdin's water quality assessment. Grade: A- (85.3/100).

Violation
1 drinking water violation recorded

1 health-based. Contaminants: TTHM.

Violation
1 drinking water violation recorded

Contaminants: Groundwater Rule.

Violation
2 drinking water violations recorded

Contaminants: LEAD AND COPPER RULE REVISIONS, Lead and Copper Rule.

Disaster
HURRICANE KATRINA EVACUATION

Federal disaster declaration (FEMA DR-3232). Hurricane event — may have impacted local water infrastructure.

Disaster
SEVERE STORMS & FLOODING

Federal disaster declaration (FEMA DR-995). Flood event — may have impacted local water infrastructure.

Key contaminant findings

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

Lead Within Limits
Detected: 0.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Purdin's water system has 6 total violations on record, including 2 health-based violations. 2 remain unresolved. 4 violations were issued in the last 5 years.

MCLMRRPT
Most recent violations:
Oct 2025 TTHM Resolved
Nov 2024 Groundwater Rule Resolved
Oct 2024 LEAD AND COPPER RULE REVISIONS Open
Oct 2024 Lead and Copper Rule Open
Jul 2015 Coliform (TCR) Resolved

Flood & environmental risk

Linn County has experienced 2 federally declared disasters since 1993. 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 Locust Creek Near Linneus.

HURRICANE KATRINA EVACUATION
Hurricane FEMA DR-3232
SEVERE STORMS & FLOODING
Flood FEMA DR-995

Where does Purdin's water come from?

Purdin's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,420 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Locust Creek Near Linneus (river).

What Purdin residents can do

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.

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
0.0 ppb
EPA Action Level: 15 ppb · 0% of limit
Safe Level
Compliance Record

Violation summary

6
Total violations
2
Health-based
2
Active / unresolved
Oct 2025
Most recent violation
Compliance Record

Violations & advisories

6 Total
2 Active
2 Health-based
4 Resolved
Violations by category
Total Coliform Rule
2
Stage 2 Disinfectants and Disinfection Byproducts Rule
1
Ground Water Rule
1
Lead and Copper Rule Revisions
1
Lead and Copper Rule
1
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Oct 2024 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Oct 2025 Resolved
TTHM
Max Contaminant Level
Health-Based Health Resolved Dec 2025
Nov 2024 Resolved
Groundwater Rule
Monitoring & Reporting
Monitoring & Reporting Resolved Nov 2024
Jul 2015 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jul 2015
Sep 1997 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Sep 1997
Environmental Risk

Flood & disaster history

2
Declared disasters
Sep 2005
Most recent
Hurricane
Most common type

Linn County has experienced 2 federally declared disasters since 1993. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3232
Jul 1993
SEVERE STORMS & FLOODING
Flood FEMA #995

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.0 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 0.0 ppb from 1993 (0.0 ppb) to 2024 (0.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
1,420
Water Systems
1
Water Source

Where Purdin's water comes from

Groundwater

Purdin'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 1,420 people through 1 water system.

Local Hydrology

Water bodies near Purdin

Purdin is located near 1 notable water body. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.

Locust Creek Near Linneus
river
Infrastructure

Water systems serving Purdin

System Name PWSID Population Source
LINN COUNTY CONS PWSD 1 MO2024346 1,420 GW
Regional Comparison

How Purdin compares

Full Missouri rankings →

Purdin's score of 85.3/100 is above the average of 62/100 among major Missouri cities. It outscores 9 of 10 nearby cities.

Purdin (this city)
85.3
St. Louis
40.9
Columbia
61.4
Missouri avg
62
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Frequently asked questions

Is Purdin, MO tap water safe to drink?

Purdin's water quality earned a grade of A- (85.3/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #220 out of 509 cities tested in Missouri.

What contaminants are in Purdin's water?

Lead was measured at 0.0 ppb (90th percentile). 6 violations are on record.

How is Purdin'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 Purdin?

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

Where does Purdin's water come from?

Purdin's water is sourced from Groundwater. The city has 1 water system serving approximately 1,420 residents.

What health violations has Purdin's water system had?

Purdin has 2 health-based violations on record. The most recent violation was recorded in October 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 2 violations remain unresolved.

Is Purdin's groundwater at risk of contamination?

Purdin 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 6 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 Purdin's water compare to other cities?

Purdin ranks #220 out of 509 cities in Missouri (better than 57% of state cities) and #5400 out of 15744 cities nationally (66th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Purdin's small water system affect quality?

Purdin's system serves approximately 1,420 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 6 violations on record.