WaterVerge

Is Merriam Woods, MO Tap Water Safe to Drink?

Graded B+, with 6 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

2K residents served 1 water system PWSID: MO5036152
Overall Score
81.7 / 100
Violations
6 active
Last Updated
May 2026
Source
Groundwater
#301 of 509 in Missouri Top 47% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
B+GRADE
Water Quality Grade
81.7/100
waterverge.com
B+ 81.7/100

Merriam Woods, MO — Water Quality Report

Merriam Woods's drinking water received a grade of B+ (81.7 out of 100), indicating good water quality. The city's 1 water system serves approximately 1,839 residents using groundwater.

Lead levels were measured at 5.0 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 47 violations on record, including 0 health-based violations. 6 remain unresolved.

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

What to know about Merriam Woods's water

Merriam Woods ranks #301 out of 509 cities in Missouri for water quality, placing it below average in the state.

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

Quality Breakdown

Water quality score

See methodology →
81.7 out of 100 Grade B+
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
33.7/45
B
Historical violation record including health-based and monitoring violations.
Lead & Copper
18/20
A
Lead at 5.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Merriam Woods, MO water safe to drink?

Concerns Identified

Merriam Woods's drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (81.7/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,839 residents using groundwater (wells).

6
Active Violations
5.0 ppb
Lead (90th %ile)
5 events
Disaster History

Recent water quality updates for Merriam Woods

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Merriam Woods's water quality assessment. Grade: B+ (81.7/100).

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: Consumer Confidence Rule.

Disaster
SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS AND FLOODING

Federal disaster declaration (FEMA DR-4317). Flood event — may have impacted local water infrastructure.

Disaster
SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING

Federal disaster declaration (FEMA DR-4250). Flood event — may have impacted local water infrastructure.

Key contaminant findings

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

Lead Within Limits
Detected: 5.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Merriam Woods's water system has 47 total violations on record, including 0 health-based violations. 6 remain unresolved. 3 violations were issued in the last 5 years.

OtherMR
Most recent violations:
Jul 2025 Consumer Confidence Rule Open
Jul 2023 Consumer Confidence Rule Open
Jul 2022 Consumer Confidence Rule Open
Jul 2019 Consumer Confidence Rule Open
Jan 2019 TTHM Resolved

Flood & environmental risk

Taney County has experienced 5 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 White River Bl Table Rock Dam Near Branson, Lake Taneycomo At School Of The Ozarks, Turkey Creek Near Hollister, Bull Creek Near Walnut Shade, Lake Taneycomo At Ozark Beach Dam.

SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS AND FLOODING
Flood FEMA DR-4317
SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING
Flood FEMA DR-4250
SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING
Flood FEMA DR-3374

Where does Merriam Woods's water come from?

Merriam Woods's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,839 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include White River Bl Table Rock Dam Near Branson (river), Lake Taneycomo At School Of The Ozarks (lake), Turkey Creek Near Hollister (river), Bull Creek Near Walnut Shade (river), Lake Taneycomo At Ozark Beach Dam (lake).

What Merriam Woods residents can do

Install a water filter

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

Flush your taps

Run cold water for 30 seconds before drinking, especially in the morning. Lead and copper leach from household plumbing when water sits in pipes.

Monitor alerts during storms

Merriam Woods'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
5.0 ppb
EPA Action Level: 15 ppb · 33% of limit
Safe Level
Compliance Record

Violation summary

47
Total violations
0
Health-based
6
Active / unresolved
Jul 2025
Most recent violation
Compliance Record

Violations & advisories

47 Total
6 Active
0 Health-based
41 Resolved
6 SNC
Violations by category
Volatile Organic Chemicals
21
Inorganic Chemicals
9
Stage 2 Disinfectants and Disinfection Byproducts Rule
6
Consumer Confidence Rule
4
Nitrate Rule
3
Jul 2025 Active
Consumer Confidence Rule
Other Violation 0
Jul 2023 Active
Consumer Confidence Rule
Other Violation 0
Jul 2022 Active
Consumer Confidence Rule
Other Violation 0
Jul 2019 Active
Consumer Confidence Rule
Other Violation 0
Oct 2015 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Active
Compliance Violation
Monitoring 0
Jan 2019 Resolved
TTHM
Monitoring & Reporting
SNC Monitoring & Reporting Resolved Dec 2019
Jan 2019 Resolved
Nitrate-Nitrite
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2019
Jan 2019 Resolved
Total Haloacetic Acids (HAA5)
Monitoring & Reporting
SNC Monitoring & Reporting Resolved Dec 2019
Jan 2017 Resolved
Nitrate-Nitrite
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2017
Jan 2017 Resolved
TTHM
Monitoring & Reporting
SNC Monitoring & Reporting Resolved Dec 2017
Jan 2017 Resolved
Ethylbenzene
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2019
Jan 2017 Resolved
Styrene
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2019
Jan 2017 Resolved
Arsenic
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2019
Jan 2017 Resolved
Cadmium
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2019
Jan 2017 Resolved
Fluoride
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2019
Jan 2017 Resolved
Mercury
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2019
Jan 2017 Resolved
Antimony, Total
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2019
Jan 2017 Resolved
Beryllium, Total
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2019
Jan 2017 Resolved
Thallium, Total
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2019
Showing 20 of 47 violations
Industrial pollution

Top industrial polluters within 10 miles of Merriam Woods

Industrial polluters nearby

Reported releases to surface water by facilities near Merriam Woods, ranked by pounds discharged annually.

FacilityTop chemicalTo surface water (lbs/yr)Distance
CONCRETE CO OF THE OZARKS- BRANSON EAST
Nonmetallic Mineral Product · CRH AMERICAS INC
HOLLISTER, MO65672
8.9 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Environmental Risk

Drought conditions

D1 — moderate drought

Taney County is currently in D1 (moderate 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.

13.1%
Months in D2+ (last 30y)
8
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
Jun 2017
Most recent
Flood
Most common type

Taney County has experienced 5 federally declared disasters since 1993. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Jun 2017
SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS AND FLOODING
Flood FEMA #4317
Jan 2016
SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING
Flood FEMA #4250
Jan 2016
SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING
Flood FEMA #3374
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) 5.0 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 increased by 5.0 ppb from 1993 (0.0 ppb) to 2024 (5.0 ppb).
Contaminant Rankings

See how Merriam Woods compares by contaminant

Explore where Merriam Woods ranks among all Missouri cities for specific contaminants.

Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
1,839
Water Systems
1
Water Source

Where Merriam Woods's water comes from

Groundwater

Merriam Woods'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 1,839 people through 1 water system.

Local Hydrology

Water bodies near Merriam Woods

Merriam Woods is located near 5 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.

White River Bl Table Rock Dam Near Branson
river
Lake Taneycomo At School Of The Ozarks
lake
Turkey Creek Near Hollister
river
Bull Creek Near Walnut Shade
river
Lake Taneycomo At Ozark Beach Dam
lake
Infrastructure

Water systems serving Merriam Woods

System Name PWSID Population Source
MERRIAM WOODS PWS MO5036152 1,839 GW
Regional Comparison

How Merriam Woods compares

Full Missouri rankings →

Merriam Woods's score of 81.7/100 is above the average of 62/100 among major Missouri cities. It outscores 8 of 10 nearby cities.

Merriam Woods (this city)
81.7
St. Louis
40.9
Columbia
61.4
Missouri avg
62
City Profile

About Merriam Woods, MO

Wikipedia →

Merriam Woods is a city in Taney County, Missouri, United States. The population was 2,006 at the 2020 census. It is part of the Branson, Missouri Micropolitan Statistical Area.

Economic Profile
$48,750
Median Income
$93,530
Median Home Value
$1,131/mo
Median Rent
12.5%
Unemployment
Community
35.3
Median Age
549
People / sq mi
10.3%
College Educated
77.3%
Homeownership
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Frequently asked questions

Is Merriam Woods, MO tap water safe to drink?

Merriam Woods's water quality earned a grade of B+ (81.7/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #301 out of 509 cities tested in Missouri.

What contaminants are in Merriam Woods's water?

Lead was measured at 5.0 ppb (90th percentile). 47 violations are on record.

How is Merriam Woods'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 Merriam Woods?

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

Where does Merriam Woods's water come from?

Merriam Woods's water is sourced from Groundwater. The city has 1 water system serving approximately 1,839 residents.

Is Merriam Woods's groundwater at risk of contamination?

Merriam Woods 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 47 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 Merriam Woods's water compare to other cities?

Merriam Woods ranks #301 out of 509 cities in Missouri (better than 41% of state cities) and #7356 out of 15744 cities nationally (53th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Merriam Woods's small water system affect quality?

Merriam Woods's system serves approximately 1,839 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 47 violations on record.