WaterVerge

Is Mountain View, MO Tap Water Safe to Drink?

Graded A-, with 5 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: MO4010551
Overall Score
87.1 / 100
Violations
5 active
Last Updated
May 2026
Source
Groundwater
#174 of 509 in Missouri Top 27% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
A-GRADE
Water Quality Grade
87.1/100
waterverge.com
A- 87.1/100

Mountain View, MO — Water Quality Report

Mountain View's drinking water received a grade of A- (87.1 out of 100), indicating good water quality. The city's 1 water system serves approximately 2,791 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 16 violations on record, including 11 health-based violations. 5 remain unresolved.

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

What to know about Mountain View's water

Mountain View ranks #174 out of 509 cities in Missouri for water quality, placing it mid-range in the state.

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

Quality Breakdown

Water quality score

See methodology →
87.1 out of 100 Grade A-
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
40.1/45
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 Mountain View, MO water safe to drink?

Concerns Identified

Mountain View's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (87.1/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 2,791 residents using groundwater (wells).

5
Active Violations
0.0 ppb
Lead (90th %ile)

Recent water quality updates for Mountain View

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Mountain View's water quality assessment. Grade: A- (87.1/100).

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Key contaminant findings

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

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

Well within EPA limits.

Violation history

Mountain View's water system has 16 total violations on record, including 11 health-based violations. 5 remain unresolved. 2 violations were issued in the last 5 years.

OtherMRMCL
Most recent violations:
Jul 2024 Consumer Confidence Rule Open
Dec 2023 Lead and Copper Rule Open
Jul 2013 Consumer Confidence Rule Open
Apr 2008 Stage 2 Disinfectants and Disinfection Byproducts Rule Open
Dec 1997 Coliform (TCR) Resolved

Where does Mountain View's water come from?

Mountain View's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 2,791 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Mountain View residents can do

Install a water filter

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

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

16
Total violations
11
Health-based
5
Active / unresolved
Jul 2024
Most recent violation
Compliance Record

Violations & advisories

16 Total
5 Active
11 Health-based
11 Resolved
Violations by category
Total Coliform Rule
11
Consumer Confidence Rule
2
Lead and Copper Rule
1
Stage 2 Disinfectants and Disinfection Byproducts Rule
1
Jul 2024 Active
Consumer Confidence Rule
Other Violation 0
Dec 2023 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2013 Active
Consumer Confidence Rule
Other Violation 0
Apr 2008 Active
Stage 2 Disinfectants and Disinfection Byproducts Rule
Monitoring & Reporting
Monitoring & Reporting 0
Active
Compliance Violation
Monitoring 0
Dec 1997 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Dec 1997
Jul 1997 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jul 1997
Sep 1996 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Sep 1996
Jun 1995 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jun 1995
Jul 1994 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jul 1994
Jul 1994 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jul 1994
May 1994 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved May 1994
May 1994 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved May 1994
Sep 1992 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Oct 1992
Jul 1991 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jul 1991
May 1991 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jun 1991
Industrial pollution

Top industrial polluters within 10 miles of Mountain View

Industrial polluters nearby

Reported releases to surface water by facilities near Mountain View, ranked by pounds discharged annually.

FacilityTop chemicalTo surface water (lbs/yr)Distance
ROYAL OAK ENTERPRISES-MTVIEW
Chemicals · ROYAL OAK ENTERPRISES LLC
MOUNTAIN VIEW, MO65548
4.1 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Environmental Risk

Drought conditions

D3 — extreme drought

Howell 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.

14
Weeks at D2+ (current streak)
11.3%
Months in D2+ (last 30y)
14
Weeks at D2+ (last 5y)

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

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 2023 (0.0 ppb).
Contaminant Rankings

See how Mountain View compares by contaminant

Explore where Mountain View ranks among all Missouri cities for specific contaminants.

Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
2,791
Water Systems
1
Water Source

Where Mountain View's water comes from

Groundwater

Mountain View'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 2,791 people through 1 water system.

Infrastructure

Water systems serving Mountain View

System Name PWSID Population Source
MOUNTAIN VIEW PWS MO4010551 2,791 GW
Regional Comparison

How Mountain View compares

Full Missouri rankings →

Mountain View's score of 87.1/100 is above the average of 62/100 among major Missouri cities. It outscores 9 of 10 nearby cities.

Mountain View (this city)
87.1
St. Louis
40.9
Columbia
61.4
Missouri avg
62
City Profile

About Mountain View, MO

Economic Profile
$43,611
Median Income
$108,089
Median Home Value
$389/mo
Median Rent
2.6%
Unemployment
Community
43.9
Median Age
263
People / sq mi
10.2%
College Educated
60.9%
Homeownership
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Frequently asked questions

Is Mountain View, MO tap water safe to drink?

Mountain View's water quality earned a grade of A- (87.1/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #174 out of 509 cities tested in Missouri.

What contaminants are in Mountain View's water?

Lead was measured at 0.0 ppb (90th percentile). 16 violations are on record.

How is Mountain View'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 Mountain View?

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

Where does Mountain View's water come from?

Mountain View's water is sourced from Groundwater. The city has 1 water system serving approximately 2,791 residents.

What health violations has Mountain View's water system had?

Mountain View has 11 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. 5 violations remain unresolved.

Is Mountain View's groundwater at risk of contamination?

Mountain View 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 16 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 Mountain View's water compare to other cities?

Mountain View ranks #174 out of 509 cities in Missouri (better than 66% of state cities) and #4247 out of 15744 cities nationally (73th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Mountain View's small water system affect quality?

Mountain View's system serves approximately 2,791 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 16 violations on record.