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Castle Pines Tap Water Quality Report
Castle Pines's water has 3 contaminants above EPA MCLGs. Consider using a certified water filter for additional protection.
Other systems listed for Castle Pines with results above guidelines: BUFFALO RIDGE ESTATES (2 above guidelines)
People Served
5,074
Health-based violations since 2020
0
CASTLE PINES VILLAGE MD. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Jun 2025 ยท CASTLE PINES VILLAGE MD
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Castle Pines Tap Water Safe to Drink?
We recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems. Castle Pines's water has 3 contaminants above EPA health-based guidelines (MCLGs), while it meets federal legal limits.
CASTLE PINES VILLAGE MD, Castle Pines's water system, serves 5,074 people. 1 other system is listed for Castle Pines. Each system's results are listed under its own name, never added to CASTLE PINES VILLAGE MD's. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for CASTLE PINES VILLAGE MD is from Jun 2025.
In EPA's 2023โ2026 UCMR 5 testing, CASTLE PINES VILLAGE MD measured lithium at up to 30.9 ยตg/L, which EPA counts as above its health reference level of 10 ยตg/L. That level is a screening value EPA uses to decide what to study further, not a legal limit, and this result does not change this page's water-quality summary.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Colorado
Castle Pines Water Service Areas

What these numbers actually mean for Castle Pines, CO
We read Castle Pines, COโs published record and send you a short report โ which findings warrant a decision, which to ignore, and what to do about it. Including when the answer is nothing.
- 3 contaminants above EPA MCLGs and 5 contaminants with an EPA health goal detected in some samples (no level on file)
- 139 results on file
- 23 PFAS compounds on record
Buying a home here? Property Water Report โ $49 Emailed within one business day.
Fluoride in Castle Pines's water
CASTLE PINES VILLAGE MD
PWSID CO0118005
CASTLE PINES VILLAGE MD reported 0.75 mg/L, at or above the 0.7 mg/L U.S. Public Health Service recommendation and below the 1.5 mg/L WHO guideline value and NTP neurodevelopment review level.
BUFFALO RIDGE ESTATES
PWSID CO0162159
BUFFALO RIDGE ESTATES reported 2.17 mg/L, at or above the 2.0 mg/L EPA secondary standard and below the 4.0 mg/L EPA maximum contaminant level.
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Recommended Water Filters for Castle Pines
Based on Castle Pines's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA MCLGs.

Solventum Purification Inc.
3MRO401
NSF Certified:
Daily Production
11.48 gpd
Highlights:
- NSF-58 certified reverse osmosis system
- 11.48 GPD production capacity
- Reduces total dissolved solids (TDS) for purer water
Removes 15 contaminants:
+10 more
Copper, Cryptosporidium, Fluoride, Lead, Radium 226, Radium 228, Radium, combined (-226 & -228), Selenium, Total Dissolved Solids, Turbidity

Solventum Purification Inc.
3MRO301
NSF Certified:
Daily Production
11.48 gpd
Highlights:
- NSF-58 certified reverse osmosis system
- 11.48 GPD production capacity
- Reduces total dissolved solids (TDS) for purer water
Removes 15 contaminants:
+10 more
Copper, Cryptosporidium, Fluoride, Lead, Radium 226, Radium 228, Radium, combined (-226 & -228), Selenium, Total Dissolved Solids, Turbidity

Culligan
ZeroWater
NSF Certified:
Flow Rate
1.9 gpm
Daily Production
1 gpd
Highlights:
- Compact design
- Easy to set up
- Affordable
- NSF-42, NSF-53, NSF-401 certified
Removes 19 contaminants:
+14 more
Strontium, Molybdenum, Fluoride, Uranium, Lead, Total PFAS, Chlorine, 25, Phosphorus, Bicarbonate, Calcium, Carbonate, Magnesium, Sodium

Santevia
Bath Filter
NSF Certified:
Flow Rate
0.36 gpm
Highlights:
- Organic cotton design reduces plastic used in construction
- Affordable upfront & ongoing cost
- The only bath filter that removed 100% chlorine with โnormalโ faster faucet flow
Removes 1 contaminants:
Verify Your Water Quality with Independent Testing
With 3 contaminants above EPA MCLGs and 5 contaminants with an EPA health goal detected in some samples (no level on file), independent laboratory testing provides a second opinion and can track changes over time.

SimpleLab
Advanced Home Water Test
$269
Comprehensive water analysis testing over 200 contaminants including bacteria, heavy metals, and chemical compounds.

Tap Score
Advanced Microplastics Test
$829
Cutting-edge testing for microplastics particles in drinking water using advanced laboratory techniques.

Tap Score
Haloacetic Acids (HAA9) Test
$275
Tests for disinfection byproducts formed when chlorine reacts with organic matter in water treatment.
With 3 contaminants above health guidelines, you may want to explore water purification options. Learn how to make distilled water at home for applications like humidifiers, CPAP machines, and baby formula.
On a private well near Castle Pines? Public-water results do not apply to private wells. See Douglas County well water testing and USGS risk data โ modeled arsenic, nitrate, and the tests to run.
Frequently Asked Questions About Castle Pines Tap Water
Castle Pines's water has 3 contaminants above EPA MCLGs. While the water meets federal legal limits, we recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach CASTLE PINES VILLAGE MD. For a problem with your water now (discolored water, no water, low pressure, a leak), contact CASTLE PINES VILLAGE MD directly.
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