Public water system record
Delta Water Association
Serves an area of Whatcom County, WA · 450 people served
Federal records show 18 health-based violations and no monitoring/reporting issues for Delta Water Association in the last ten years. The most serious issue in this window was a resolved Nitrate violation.
System profile
Source water
Groundwater
ZIP
98264
EPA system ID
WA5318750
- Health-based violations, last 10 years
- 18
- Resolved
- 18
- Unresolved
- 0
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 0
Key facts
- Delta Water Association draws water from 3 wells.
- Highest measured level in the last 10 years: Nitrate, 21.1 mg/L, federal limit 10 mg/L (2.1 times the limit), 2017.
- Most recent formal enforcement: compliance order (no penalty) by Washington, September 2023.
- Record on file since 1979, with 56 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 181 unknown out of 181 service lines.
Check whether Delta Water Association 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.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Nitrate
Contaminant limit exceeded
Measured 11.1 mg/L, federal limit 10 mg/L (1.1 times the limit)
|
330 | Jan 1, 2024 | Resolved | Yes |
|
Nitrate
Contaminant limit exceeded
Measured 11.4 mg/L, federal limit 10 mg/L (1.1 times the limit)
|
330 | Apr 1, 2023 | Resolved | Yes |
|
Nitrate
Contaminant limit exceeded
Measured 11.4 mg/L, federal limit 10 mg/L (1.1 times the limit)
|
330 | Jan 1, 2023 | Resolved | Yes |
|
Nitrate
Contaminant limit exceeded
Measured 10.8 mg/L, federal limit 10 mg/L (1.1 times the limit)
|
330 | Jan 1, 2023 | Resolved | Yes |
|
Nitrate
Contaminant limit exceeded
Measured 11 mg/L, federal limit 10 mg/L (1.1 times the limit)
|
330 | Jan 1, 2023 | Resolved | Yes |
|
Nitrate
Contaminant limit exceeded
Measured 11.8 mg/L, federal limit 10 mg/L (1.2 times the limit)
|
330 | Jan 1, 2023 | Resolved | Yes |
|
Nitrate
Contaminant limit exceeded
Measured 10.4 mg/L, federal limit 10 mg/L (at or just above the limit)
|
330 | Jan 1, 2023 | Resolved | Yes |
|
Nitrate
Contaminant limit exceeded
Measured 11.6 mg/L, federal limit 10 mg/L (1.2 times the limit)
|
330 | Apr 1, 2022 | Resolved | Yes |
|
Nitrate
Contaminant limit exceeded
Measured 13.7 mg/L, federal limit 10 mg/L (1.4 times the limit)
|
330 | Apr 1, 2022 | Resolved | Yes |
|
Nitrate
Contaminant limit exceeded
Measured 14.3 mg/L, federal limit 10 mg/L (1.4 times the limit)
|
330 | Jan 1, 2019 | Resolved | Yes |
|
Nitrate
Contaminant limit exceeded
Measured 14.3 mg/L, federal limit 10 mg/L (1.4 times the limit)
|
330 | Jan 1, 2019 | Resolved | Yes |
|
Nitrate
Contaminant limit exceeded
Measured 21.1 mg/L, federal limit 10 mg/L (2.1 times the limit)
|
330 | Apr 1, 2017 | Resolved | Yes |
|
Nitrate
Contaminant limit exceeded
Measured 16.3 mg/L, federal limit 10 mg/L (1.6 times the limit)
|
330 | Apr 1, 2017 | Resolved | Yes |
|
Nitrate
Contaminant limit exceeded
Measured 17.4 mg/L, federal limit 10 mg/L (1.7 times the limit)
|
330 | Jan 1, 2017 | Resolved | Yes |
|
Nitrate
Contaminant limit exceeded
Measured 14.1 mg/L, federal limit 10 mg/L (1.4 times the limit)
|
330 | Jan 1, 2017 | Resolved | Yes |
|
Nitrate
Contaminant limit exceeded
Measured 14.6 mg/L, federal limit 10 mg/L (1.5 times the limit)
|
330 | Jan 1, 2017 | Resolved | Yes |
|
Nitrate
Contaminant limit exceeded
Measured 14.9 mg/L, federal limit 10 mg/L (1.5 times the limit)
|
330 | Jan 1, 2017 | Resolved | Yes |
|
Nitrate
Contaminant limit exceeded
Measured 16.1 mg/L, federal limit 10 mg/L (1.6 times the limit)
|
330 | Jan 1, 2017 | Resolved | Yes |
Full record since 1979
EPA's records for Delta Water Association go back to 1979. Before October 19, 2016 they list 56 health-based violations (50 resolved, 6 archived by EPA without a recorded fix) and 103 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 1 |
| 1990s | 4 | 9 |
| 2000s | 18 | 93 |
| 2010 to October 18, 2016 | 34 | 0 |
| October 19, 2016 to 2019 | 9 | 0 |
| 2020s | 9 | 0 |
Most recent health-based violation before October 19, 2016: Nitrate (acute), began April 2016, Resolved.
Show all 56 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Nitrate (acute)
Contaminant limit exceeded
Measured 12.7 mg/L, federal limit 10 mg/L (1.3 times the limit)
|
Apr 1, 2016 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 14.9 mg/L, federal limit 10 mg/L (1.5 times the limit)
|
Apr 1, 2016 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 11.4 mg/L, federal limit 10 mg/L (1.1 times the limit)
|
Jan 1, 2016 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 12.2 mg/L, federal limit 10 mg/L (1.2 times the limit)
|
Jan 1, 2016 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 14.3 mg/L, federal limit 10 mg/L (1.4 times the limit)
|
Apr 1, 2015 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 13.7 mg/L, federal limit 10 mg/L (1.4 times the limit)
|
Apr 1, 2015 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 11.9 mg/L, federal limit 10 mg/L (1.2 times the limit)
|
Jan 1, 2015 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 11.7 mg/L, federal limit 10 mg/L (1.2 times the limit)
|
Jan 1, 2015 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 12.1 mg/L, federal limit 10 mg/L (1.2 times the limit)
|
Jan 1, 2015 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 11.8 mg/L, federal limit 10 mg/L (1.2 times the limit)
|
Jan 1, 2015 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 13.1 mg/L, federal limit 10 mg/L (1.3 times the limit)
|
Jan 1, 2015 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 13.6 mg/L, federal limit 10 mg/L (1.4 times the limit)
|
Jan 1, 2015 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 11.4 mg/L, federal limit 10 mg/L (1.1 times the limit)
|
Apr 1, 2014 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 14.8 mg/L, federal limit 10 mg/L (1.5 times the limit)
|
Apr 1, 2014 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 11.5 mg/L, federal limit 10 mg/L (1.2 times the limit)
|
Jan 1, 2014 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 13.4 mg/L, federal limit 10 mg/L (1.3 times the limit)
|
Jan 1, 2014 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 13 mg/L, federal limit 10 mg/L (1.3 times the limit)
|
Jan 1, 2014 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 12.8 mg/L, federal limit 10 mg/L (1.3 times the limit)
|
Jan 1, 2014 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 14.5 mg/L, federal limit 10 mg/L (1.5 times the limit)
|
Jan 1, 2014 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 12.7 mg/L, federal limit 10 mg/L (1.3 times the limit)
|
Jan 1, 2014 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 11.6 mg/L, federal limit 10 mg/L (1.2 times the limit)
|
Oct 1, 2013 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 12.8 mg/L, federal limit 10 mg/L (1.3 times the limit)
|
Oct 1, 2013 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 14.6 mg/L, federal limit 10 mg/L (1.5 times the limit)
|
Apr 1, 2013 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 13.1 mg/L, federal limit 10 mg/L (1.3 times the limit)
|
Jan 1, 2013 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 14.7 mg/L, federal limit 10 mg/L (1.5 times the limit)
|
Jan 1, 2013 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 13 mg/L, federal limit 10 mg/L (1.3 times the limit)
|
Jan 1, 2012 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 14.2 mg/L, federal limit 10 mg/L (1.4 times the limit)
|
Jan 1, 2012 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 14 mg/L, federal limit 10 mg/L (1.4 times the limit)
|
Jan 1, 2012 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 15 mg/L, federal limit 10 mg/L (1.5 times the limit)
|
Jan 1, 2012 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 15 mg/L, federal limit 10 mg/L (1.5 times the limit)
|
Jan 1, 2011 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 16 mg/L, federal limit 10 mg/L (1.6 times the limit)
|
Jan 1, 2010 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 18 mg/L, federal limit 10 mg/L (1.8 times the limit)
|
Jan 1, 2010 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 15.5 mg/L, federal limit 10 mg/L (1.6 times the limit)
|
Jan 1, 2010 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 19.2 mg/L, federal limit 10 mg/L (1.9 times the limit)
|
Jan 1, 2010 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 16 mg/L, federal limit 10 mg/L (1.6 times the limit)
|
Oct 1, 2009 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 14 mg/L, federal limit 10 mg/L (1.4 times the limit)
|
Jul 1, 2009 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 14 mg/L, federal limit 10 mg/L (1.4 times the limit)
|
Jul 1, 2009 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 20 mg/L, federal limit 10 mg/L (2 times the limit)
|
Apr 1, 2009 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 21 mg/L, federal limit 10 mg/L (2.1 times the limit)
|
Jan 1, 2009 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 16 mg/L, federal limit 10 mg/L (1.6 times the limit)
|
Jan 1, 2009 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 17 mg/L, federal limit 10 mg/L (1.7 times the limit)
|
Oct 1, 2008 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 16 mg/L, federal limit 10 mg/L (1.6 times the limit)
|
Jul 1, 2008 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 17 mg/L, federal limit 10 mg/L (1.7 times the limit)
|
Apr 1, 2008 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 15 mg/L, federal limit 10 mg/L (1.5 times the limit)
|
Jan 1, 2008 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 16.8 mg/L, federal limit 10 mg/L (1.7 times the limit)
|
Apr 1, 2007 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 15.1 mg/L, federal limit 10 mg/L (1.5 times the limit)
|
Jan 1, 2007 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 13 mg/L, federal limit 10 mg/L (1.3 times the limit)
|
Oct 1, 2006 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 13.2 mg/L, federal limit 10 mg/L (1.3 times the limit)
|
Oct 1, 2006 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 14.9 mg/L, federal limit 10 mg/L (1.5 times the limit)
|
Oct 1, 2006 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 15 mg/L, federal limit 10 mg/L (1.5 times the limit)
|
Jul 1, 2003 | Archived |
6 older violations are not listed here. EPA ECHO has the complete list.
Enforcement actions
Washington regulators took 3 formal enforcement actions against Delta Water Association between 2003 and 2023. The most recent was a compliance order (no penalty) in September 2023.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Sep 25, 2023 | Washington | Compliance order (no penalty) | 11 violations (11 health-based): Nitrate |
| Aug 29, 2011 | Washington | Compliance order (no penalty) | 58 violations (58 health-based): Nitrate |
| Jun 4, 2003 | Washington | Signed compliance agreement | 3 violations (3 health-based): Nitrate |
What the violations mean
Nitrate
18 incidentsNitrate exceeded the federal limit
High nitrate is especially dangerous for infants under 6 months and can cause blue baby syndrome
Where the water comes from
Delta Water Association draws water from 3 wells. It also has an emergency connection to Valley View Water Assoc.
Emergency or part-time connections to
- Valley View Water Assoc Lynden, WA
Annual water quality report
Delta Water Association 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 Delta Water Association 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 Washington.
Certified drinking water labs by state EPA guidance for private wells