CHERRY CREEK VALLEY WSDlikely match
City water report · 2026

Is Four Square Mile Tap Water Safe? 2026 Water Quality Report

Short answer: No measured result is above a legal limit. Cherry Creek Valley WSD serves 22,000 residents.

Likely match, check your bill

CHERRY CREEK VALLEY WSD serves Four Square Mile

Your water bill or annual water quality report names your actual supplier.

Source
Surface water
Every detected result

One detected result

CHERRY CREEK VALLEY WSD (EPA PWSID CO0116175) delivers surface water to 22,000 residents. This report reflects 0 individual PFAS result(s) from the source UCMR5 observations and the latest Lead & Copper Rule 90th-percentile result. Water hardness and disinfectant type are pending the utility's own annual report.

  • Lead (90th percentile)EPA SDWIS (Lead & Copper Rule) · 2002
    15 µg/L federal action level
    9µg/L
    Within reference

Coverage by group

1 result on record
  • PFAS (forever chemicals)Not monitored
  • Metals & lead1 detected
  • Disinfection by-productsNot monitored
  • OtherNot monitored
Track record

0health-based violations in the last 10 years

From EPA SDWIS. A clean violation history means no enforcement action was recorded; it does not cover contaminants without a limit.

Not in this recordPFAS (forever chemicals), Disinfection by-products and other substances weren't monitored in this dataset

No result is not a pass. Your utility's annual water quality report may list them, and a certified lab test covers your own tap.

Test your own tap

Screening tells you if something is worth a closer look; a lab result is the number you can act on.

As an Amazon Associate, PurityMap earns from qualifying purchases. Affiliate disclosure.

  • Screening: quick check, not lab-grade

    Safe Home DIY Lead in Drinking Water Combo Test Kit

    Safe Home (EnviroTestKits)

    Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb

    • Turnaround: 5 minutes

    What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.

  • Lab-certified results

    ETR Labs Basic Water Quality Test Kit

    ETR Laboratories

    50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria

    What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.

When your results arrive, read them here →

Commercial

Certified for a concern found here

Each card names which Four Square Mile findings its current certification covers, and which it doesn't.

As an Amazon Associate, PurityMap earns from qualifying purchases. A product appears here only when a current certification record covers at least one identified concern; every concern stays listed. The retail offer is looked up afterwards and never changes which products appear or their order. Affiliate disclosure.

Water Pitcher

Brita Elite Water Filter Pitcher

  • Lead: eligible, evidence match
Not suitable for (3)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
Water Pitcher

Culligan ZeroWater 10-Cup Pitcher (ZEROP10)

  • Lead: eligible, evidence match
Not suitable for (3)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
See all 13 products certified for a Four Square Mile concern →
Faucet Attachment

PUR Plus Faucet Filter (FM2500V)

  • Lead: eligible, evidence match
Not suitable for (3)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
Under-Sink Filter

Aquasana Claryum 2-Stage Under-Sink Filter (AQ-5200)

  • Lead: eligible, evidence match
Not suitable for (5)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
  • Anyone who can't plumb, drill or hire an installer
  • Renters who can't modify plumbing
Under-Sink Filter

Aquasana Claryum 3-Stage Max Flow Under-Sink Filter (AQ-6300M)

  • Lead: eligible, evidence match
Not suitable for (5)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
  • Anyone who can't plumb, drill or hire an installer
  • Renters who can't modify plumbing
Countertop System

Aquasana Clean Water Machine Countertop Filter (AQ-CWM2)

  • Lead: eligible, evidence match
Not suitable for (3)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
Under-Sink Filter

Frizzlife SP99 Under-Sink Filter

  • Lead: eligible, evidence match
Not suitable for (4)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
  • Anyone who can't plumb, drill or hire an installer
Countertop System

Patriot Pure Ultimate Water Filtration System

  • Lead: eligible, evidence match
Not suitable for (3)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
Countertop System

AquaTru Carafe Countertop Reverse-Osmosis Purifier (AT100)

  • Lead: eligible, evidence match
Not suitable for (3)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
Countertop System

AquaTru Classic Countertop Reverse-Osmosis Purifier (AT2000)

  • Lead: eligible, evidence match
Not suitable for (3)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
Under-Sink Filter

Waterdrop G3P600 Tankless Reverse-Osmosis System

  • Lead: eligible, evidence match
Not suitable for (5)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
  • Anyone who can't plumb, drill or hire an installer
  • Renters who can't modify plumbing
Under-Sink Filter

Waterdrop G3P800 Tankless Reverse-Osmosis System

  • Lead: eligible, evidence match
Not suitable for (5)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
  • Anyone who can't plumb, drill or hire an installer
  • Renters who can't modify plumbing
Refrigerator Filter

Whirlpool Filter 3 Refrigerator Water Filter (WHR3RXD1)

  • Lead: eligible, evidence match
Not suitable for (3)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
Questions

Frequently asked questions

Is Four Square Mile tap water safe to drink?

PurityMap does not give a safe/unsafe verdict; it shows what the public records measured. For Four Square Mile, the lead 90th-percentile result was 9 µg/L against the 15 µg/L action level. CHERRY CREEK VALLEY WSD (PWSID CO0116175) has a Purity Score of 82/100 (confidence: low), assessed at the water-system level and computed only from contaminants that were measured. Water can change in your own pipes, so a certified test is the only way to know what comes out of your tap.

Who provides tap water in Four Square Mile?

CHERRY CREEK VALLEY WSD (PWS ID CO0116175) is the public water system on record for Four Square Mile, Colorado, serving about 22,000 people. Confirm the utility on your water bill before acting on a specific finding.

Where does Four Square Mile get its drinking water?

Surface water (primary source of record in EPA SDWIS).

Is there lead in Four Square Mile's tap water?

CHERRY CREEK VALLEY WSD's most recent lead 90th-percentile result (2002) was 9 µg/L, below the 15 µg/L action level. That figure comes from sampled homes; lead usually enters from a building's own pipes and fixtures, so only a test at your tap tells you what you drink.

What does the latest Four Square Mile water report show?

PurityMap's current record for Four Square Mile holds 1 finding: 1 detected within the reference. Each finding links to its dated public record; a parameter that was never monitored is shown as pending, not as a pass.

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Sources and dataAll 1 record and their sourcesEPA SDWIS (Lead & Copper Rule)
ContaminantResultBenchmarkStatusSampledSource
Lead (90th percentile)9 µg/L15 µg/L federal action levelBelow the listed reference2002–2002 monitoring periodLead & Copper Rule 90th-percentile: CHERRY CREEK VALLEY WSD (CO0116175)

Lead (90th percentile)

Result
9 µg/L
Benchmark
15 µg/L federal action level
Status
Below the listed reference
Sampled
2002–2002 monitoring period

Every value is the published result from the cited public record. A reporting limit is the lowest level the method could reliably quantify; a non-detect is not a guarantee of zero.

  • State SDWIS Compliance Record

    Lead & Copper Rule 90th-percentile: CHERRY CREEK VALLEY WSD (CO0116175)

    US EPA SDWIS

    Published
    2026-07-09
    Newest sample
    2002
    Findings here
    1

Methodology: how we analyze water. Prepared with AI assistance and reviewed by the PurityMap Editorial Team before publication.