Public water system record
Maple Grove WD
Serves an area of Boulder County, CO · 35 people served
Federal records show no health-based violations and 11 monitoring/reporting issues for Maple Grove WD in the last ten years. At least one of these issues remains unresolved.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 11
Key facts
- Maple Grove WD draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).
- Most recent enforcement action: boil water order by Colorado, March 2021.
- Record on file since 1991, with 2 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 15 service lines.
Check whether Maple Grove WD serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
None since October 2016.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Public Notice
OTHER
|
Dec 31, 2025 | Active |
|
Public Notice
OTHER
|
Oct 1, 2025 | Active |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2025 | Active |
|
Public Notice
OTHER
|
Jul 1, 2025 | Active |
|
Public Notice
OTHER
|
Mar 31, 2025 | Active |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Public Notice
OTHER
|
Dec 31, 2024 | Active |
|
Public Notice
OTHER
|
Oct 1, 2024 | Active |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Dec 9, 2020 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2018 | Resolved |
Full record since 1991
EPA's records for Maple Grove WD go back to 1991. Before October 19, 2016 they list 2 health-based violations (2 resolved) and 8 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 5 |
| 2000s | 1 | 1 |
| 2010 to October 18, 2016 | 1 | 2 |
| October 19, 2016 to 2019 | 0 | 1 |
| 2020s | 0 | 10 |
Most recent health-based violation before October 19, 2016: Total Coliform, began May 2014, Resolved.
Show all 2 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2014 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2008 | Resolved |
Enforcement actions
Colorado regulators issued 1 boil water order to Maple Grove WD in 2021. The most recent was a boil water order in March 2021.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Mar 26, 2021 | Colorado | Boil water order | 1 violation |
Where the water comes from
Maple Grove WD draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).
Annual water quality report
Maple Grove WD must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Maple Grove WD for a copy.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Colorado.
Certified drinking water labs by state EPA guidance for private wells