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WaterVerge

Water quality report · updated Jul 2026

Is Linwood, MI 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 ↓

0 contaminants over a legal limit
5.0 ppb lead, 90th percentile · low
2 unresolved violations
909 people served by 1 water system

PWSID MI0003910 · moderate data confidence · local government utility

Reviewed by WaterVerge Editorial Team · Last updated July 2026
A 90.2 / 100

#111 of 513Michigan cities
How we grade →

01The verdict: is Linwood water safe?

Linwood's tap water meets most EPA standards but has areas that warrant attention. With a grade of A (90.2/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 909 residents using surface water (rivers, lakes, or reservoirs).

The concern

2 unresolved violations on record

EPA records show open compliance items for this system. Most are administrative, but unresolved items are worth watching.

See what was cited ↓
The good news

Lead is well under the limit

90th-percentile lead is 5.0 ppb — beneath the 15 ppb federal action level and under the 5 ppb watch threshold.

See the trend ↓
Keep watching

A flood-prone service area

5 federal disaster declarations on record. After severe weather, watch for boil-water advisories.

See the risk factors ↓

Linwood's drinking water received a grade of A (90.2 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 909 residents using purchased surface water.

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 12 violations on record, including 9 health-based violations. 2 remain unresolved.

Linwood ranks #111 out of 513 cities in Michigan for water quality, placing it above average in the state. The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection. As a small community water system, Linwood may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

How the 90.2/100 breaks down Methodology →
ViolationsHistorical violation record including health-based and monitoring violations.
43.2 / 45A
Lead & CopperLead at 5.0 ppb (90th percentile).
18 / 20A
ContaminantsPFAS + legacy contaminant analysis.
17 / 20B
ComplianceMonitoring and reporting compliance with EPA regulations.
8 / 10B
Source RiskWater source: Purchased surface water.
4 / 5B

02What's in Linwood's water

Every contaminant flagged in Linwood, on one shared scale: distance to its own legal limit. The red line is the limit — anything past it is out of compliance, and the closer a bar gets, the less headroom the system has.

1 detection · sorted by % of legal limit
Over the limit Elevated — watch Within limits
0 50% LEGAL LIMIT 150%
1 contaminant tested under EPA SDWIS, LCR and UCMR programs · 1 detected · not yet tested for PFAS under UCMR 5

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.

03Linwood's ten-year track record

Each box is one year. A green check means no EPA violations; a numbered badge counts that year's violations — red if any were health-based, amber if they were monitoring or paperwork issues. The system has 12 violations on record, including 9 health-based violations. 2 remain unresolved.

All ten of the last ten years were clean — no EPA violations recorded for Linwood.

UpdateWater quality data updatedLatest EPA compliance and testing data incorporated into Linwood's water quality assessment. Grade: A (90.2/100).
Violation1 drinking water violation recordedContaminants: Lead and Copper Rule.Open
DisasterHURRICANE KATRINA EVACUATIONFederal disaster declaration (FEMA DR-3225). Hurricane event — may have impacted local water infrastructure.
Violation1 drinking water violation recordedContaminants: TTHM.Resolved
Violation1 drinking water violation recorded1 health-based. Contaminants: Surface Water Treatment Rule.Resolved
DisasterSEVERE STORMS & FLOODINGFederal disaster declaration (FEMA DR-774). Flood event — may have impacted local water infrastructure.
Lead, 90th percentileppb · lower is better
05101520EPA action level · 15 ppb2017 — 13 ppb2020 — 3 ppb2023 — 5 ppb135201720202023

Down 8 ppb since 2017. Latest reading: 5 ppb (2023) — 33% of the action level. Sampled at higher-risk homes (90th percentile).

04Where Linwood's water comes from

Linwood's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.

Source

Purchased Surface Water

Rivers, lakes, or reservoirs — more exposed to runoff, agriculture, and seasonal swings than groundwater.

Treatment

Wholesale supplier

Multi-barrier treatment: coagulation, sedimentation, filtration, and disinfection to meet EPA standards.

Distribution

1 system

1 water system, operated under local government ownership.

Delivery

909 people

Residents served across Linwood's service area.

Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards. These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge. The system is operated by local government ownership and serves approximately 909 people through 1 water system.

System namePWSIDPopulationSource
LINWOOD METROPOLITAN DISTRICT MI0003910 909 Purchased Surface Water

Water bodies near Linwood

Kawkawlin River · river Saginaw River · river

As a surface-water system, these water bodies may directly influence Linwood's drinking water supply.

05Pressure on Linwood's watershed

Outside forces that shape what reaches the treatment plant. None of these is a verdict on the tap by itself — but each adds pressure worth knowing about.

Flood & storm history

Recurring — declared disasters

5 federal disaster declarations on record for Bay County. Flooding and severe storms can overwhelm treatment plants, cause sewage overflows, and push runoff into supplies.

HURRICANE KATRINA EVACUATION Sep 2005 · DR-3225
SEVERE STORMS & FLOODING Sep 1986 · DR-774
SEVERE STORMS AND FLOODING Sep 1985 · DR-744

06How Linwood compares

Scores for nearby Michigan cities on one line, with the average marked.

Linwood (this city)
90.2 · A
Detroit
84.1 · B+
Grand Rapids
70.2 · B-
Lansing
57.3 · C-
Ann Arbor
51.5 · D+
Kalamazoo
35 · F

dashed line = Michigan average (70/100)

Linwood scores 90.2/100above the Michigan average of 70/100. It outscores 8 of 10 nearby cities. Full Michigan rankings →

Bay water quality rankings
Compare all cities in the county — grades, violations, and contaminant data side by side.

07What to do at home

Steps matched to what testing actually found in Linwood's water — not generic advice.

Extra protection

A basic carbon filter still helps

Linwood's water meets federal standards, but a simple carbon filter improves taste and adds a margin of safety against short-term issues.

Compare tested filters →
Because lead was detected

Flush taps & check your service line

Lead leaches from pipes as water sits. Run cold water 30 seconds before drinking (especially mornings), and ask the utility whether your address still has a lead service line.

Lead risks explained →
Stay informed

Watch for Linwood alerts

This area has a history of flood declarations — after severe weather, watch for boil-water advisories from the utility, and check the live alerts on this page.

All water alerts →

Frequently asked questions

Is Linwood, MI tap water safe to drink?

Linwood's water quality earned a grade of A (90.2/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #111 out of 513 cities tested in Michigan.

What contaminants are in Linwood's water?

Lead was measured at 5.0 ppb (90th percentile). 12 violations are on record.

How is Linwood'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 Linwood?

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

Where does Linwood's water come from?

Linwood's water is sourced from Purchased surface water. The city has 1 water system serving approximately 909 residents.

What health violations has Linwood's water system had?

Linwood has 9 health-based violations on record. The most recent violation was recorded in October 2011. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 2 violations remain unresolved.

How does Linwood's water compare to other cities?

Linwood ranks #111 out of 513 cities in Michigan (better than 78% of state cities) and #2366 out of 15382 cities nationally (85th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Linwood's small water system affect quality?

Linwood's system serves approximately 909 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 12 violations on record.

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About Linwood, MI: Linwood is a small unincorporated community in the northern portion of Bay County in the U.S. state of Michigan. The community is on the boundary between Fraser Township on the north and Kawkawlin Township on the south. It is situated with M-13 to the west and the Saginaw Bay of Lake Huron on the east, between Kaiser Tower Road and Elevator Road where Linwood Road becomes Center Street. Bay City is about 12 miles to the south and Linwood is included in the Bay City Metropolitan Statistical Area. Wikipedia → Service area: 1 ZIP code across Bay.
Show ZIP codes 48634
Sources: EPA SDWIS & ECHO · UCMR 3–5 · Lead & Copper Rule samples · EPA TRI · U.S. Drought Monitor · FEMA declarations. Data last updated Jul 2026. Analysis by the WaterVerge Editorial Team · methodology.