Public water system record
City of Lafayette
Serves Lafayette and Paragon Estates, Boulder County, CO · 28,700 people served
Federal records show no health-based violations and 24 monitoring/reporting issues for City of Lafayette in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 24
Key facts
- City of Lafayette draws water from 4 surface water intakes (1 of them for emergency, seasonal or other part-time use).
- Most recent enforcement action: boil water order by Colorado, October 2013.
- Record on file since 1995, with 5 health-based violations before October 19, 2016.
- Lead pipe inventory: 1 lead and 755 unknown out of 10,001 service lines.
Check whether City of Lafayette 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 |
|---|---|---|
|
Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2025 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2025 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Jul 1, 2025 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2021 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2020 | Resolved |
|
Revised Total Coliform Rule
OTHER
|
Nov 8, 2019 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
E. coli
Monitoring and reporting
|
Feb 1, 2017 | Resolved |
|
Selenium
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Thallium, Total
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Beryllium, Total
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Antimony, Total
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Nickel
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Mercury
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Chromium (total)
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Cadmium
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Barium
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
E. coli
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
E. coli
Monitoring and reporting
|
Dec 1, 2016 | Resolved |
|
E. coli
Monitoring and reporting
|
Nov 1, 2016 | Resolved |
|
E. coli
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
Full record since 1995
EPA's records for City of Lafayette go back to 1995. Before October 19, 2016 they list 5 health-based violations (5 resolved) and 41 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 3 | 1 |
| 2000s | 1 | 38 |
| 2010 to October 18, 2016 | 1 | 2 |
| October 19, 2016 to 2019 | 0 | 16 |
| 2020s | 0 | 7 |
Most recent health-based violation before October 19, 2016: Total Coliform (acute), began October 2013, Resolved.
Show all 5 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform (acute)
Contaminant limit exceeded
|
Oct 1, 2013 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Oct 1, 2003 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1997 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jul 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
May 1, 1995 | Resolved |
Enforcement actions
Colorado regulators issued 1 boil water order to City of Lafayette in 2013. The most recent was a boil water order in October 2013.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Oct 11, 2013 | Colorado | Boil water order | 1 violation (1 health-based): Total Coliform |
Where the water comes from
City of Lafayette draws water from 4 surface water intakes (1 of them for emergency, seasonal or other part-time use). 6 other community water systems buy water from City of Lafayette. 1 other public water system has an interim connection to City of Lafayette.
Community systems that buy water from it
- Arbordale Acres MHP Lafayette, CO
- Baseline WD Boulder, CO
- Boulder Ridge MHP Lafayette, CO
- East Boulder County WD Boulder, CO
- Lafayette Gardens Lakewood, CO
- Skylark Mobile Home Community Lafayette, CO
Annual water quality report
City of Lafayette 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 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
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