Public Water System: Mililani

MyTapWater.org's tap water quality report is the compilation of data collected from federal, state, and local government agencies, most prominently the EPA. We strive to populate the report with the latest data concerning water contaminants, lead and copper levels, and water quality violations. We only collect drinking water data from public water systems.

PWS Service Information
PWS ID: HI0000367
Type: Community water system
EPA Region: 09
Primary Service Area: Residential Area
Primary Source: Ground water
Population Served: 50,420
Contact Information
KAWATA, ERWIN
KAWATA, ERWIN
Honolulu Board of Water Supply
630 S. Beretania St., Rm. 308
HONOLULU, HI 96843

This public water system services 2 zip codes in 1 municipality in 1 county.

Summary Results


A summary view of the the times a water contaminant was tested and found to exceed the level set by the EPA (the MCL).

Maximum Contaminant Levels Exceeded (by year):

2013   (1) 2014   (2) 2015   (0)
vanadium 1,2,3-trichloropropane
vanadium

Contaminant Detailed Results


This a view of violations of maximum contaminant levels. In the expanded view you can see each know test date for a given contaminant, the result of the test, the minimum level that can be recognized in a test (MRL), and upper limit that is considered healthy (HRL).

vanadium
Is this in your home's pipes?

Year Test Date MRL HRL Test Result
2014 2014-06-16 0.2 21 16
2014 2014-06-16 0.2 21 42
2014 2014-06-04 0.2 21 1.3
2014 2014-06-04 0.2 21 43
2013 2013-12-11 0.2 21 14
2013 2013-12-09 0.2 21 46
2013 2013-12-09 0.2 21 37
2013 2013-12-09 0.2 21 38

1,2,3-trichloropropane
Is this in your home's pipes?

Year Test Date MRL HRL Test Result
2014 2014-06-16 0.03 0.0004 < 0.03
2014 2014-06-16 0.03 0.0004 < 0.03
2014 2014-06-04 0.03 0.0004 0.057
2013 2013-12-11 0.03 0.0004 < 0.03
2013 2013-12-09 0.03 0.0004 < 0.03
2013 2013-12-09 0.03 0.0004 < 0.03

Other Water Contaminants Tested


The following contaminants were tested and within national EPA guidelines.

The last mile of pipe makes a big difference, learn more about testing your water.

Contaminant MRL HRL Avg Result
PFHpA 0.01 0 < 0.01 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-16 0.01 0 < 0.01
2014 2014-06-16 0.01 0 < 0.01
2014 2014-06-04 0.01 0 < 0.01
2013 2013-12-11 0.01 0 < 0.01
2013 2013-12-09 0.01 0 < 0.01
2013 2013-12-09 0.01 0 < 0.01
PFOS 0.04 0.07 < 0.04 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-16 0.04 0.07 < 0.04
2014 2014-06-16 0.04 0.07 < 0.04
2014 2014-06-04 0.04 0.07 < 0.04
2013 2013-12-11 0.04 0.07 < 0.04
2013 2013-12-09 0.04 0.07 < 0.04
2013 2013-12-09 0.04 0.07 < 0.04
PFHxS 0.03 0 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-16 0.03 0 < 0.03
2014 2014-06-16 0.03 0 < 0.03
2014 2014-06-04 0.03 0 < 0.03
2013 2013-12-11 0.03 0 < 0.03
2013 2013-12-09 0.03 0 < 0.03
2013 2013-12-09 0.03 0 < 0.03
PFNA 0.02 0 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-16 0.02 0 < 0.02
2014 2014-06-16 0.02 0 < 0.02
2014 2014-06-04 0.02 0 < 0.02
2013 2013-12-11 0.02 0 < 0.02
2013 2013-12-09 0.02 0 < 0.02
2013 2013-12-09 0.02 0 < 0.02
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-16 0.09 0 < 0.09
2014 2014-06-16 0.09 0 < 0.09
2014 2014-06-04 0.09 0 < 0.09
2013 2013-12-11 0.09 0 < 0.09
2013 2013-12-09 0.09 0 < 0.09
2013 2013-12-09 0.09 0 < 0.09
PFOA 0.02 0.07 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-16 0.02 0.07 < 0.02
2014 2014-06-16 0.02 0.07 < 0.02
2014 2014-06-04 0.02 0.07 < 0.02
2013 2013-12-11 0.02 0.07 < 0.02
2013 2013-12-09 0.02 0.07 < 0.02
2013 2013-12-09 0.02 0.07 < 0.02
Halon 1011 0.06 90 < 0.06 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-16 0.06 90 < 0.06
2014 2014-06-16 0.06 90 < 0.06
2014 2014-06-04 0.06 90 < 0.06
2013 2013-12-11 0.06 90 < 0.06
2013 2013-12-09 0.06 90 < 0.06
2013 2013-12-09 0.06 90 < 0.06
HCFC-22 0.08 0 < 0.08 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-16 0.08 0 < 0.08
2014 2014-06-16 0.08 0 < 0.08
2014 2014-06-04 0.08 0 < 0.08
2013 2013-12-11 0.08 0 < 0.08
2013 2013-12-09 0.08 0 < 0.08
2013 2013-12-09 0.08 0 < 0.08
1,3-butadiene 0.1 0.0103 < 0.1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-16 0.1 0.0103 < 0.1
2014 2014-06-16 0.1 0.0103 < 0.1
2014 2014-06-04 0.1 0.0103 < 0.1
2013 2013-12-11 0.1 0.0103 < 0.1
2013 2013-12-09 0.1 0.0103 < 0.1
2013 2013-12-09 0.1 0.0103 < 0.1
bromomethane 0.2 140 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-16 0.2 140 < 0.2
2014 2014-06-16 0.2 140 < 0.2
2014 2014-06-04 0.2 140 < 0.2
2013 2013-12-11 0.2 140 < 0.2
2013 2013-12-09 0.2 140 < 0.2
2013 2013-12-09 0.2 140 < 0.2
chloromethane 0.2 2.69 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-16 0.2 2.69 < 0.2
2014 2014-06-16 0.2 2.69 < 0.2
2014 2014-06-04 0.2 2.69 < 0.2
2013 2013-12-11 0.2 2.69 < 0.2
2013 2013-12-09 0.2 2.69 < 0.2
2013 2013-12-09 0.2 2.69 < 0.2
1,4-dioxane 0.07 0.35 < 0.07 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-16 0.07 0.35 < 0.07
2014 2014-06-16 0.07 0.35 < 0.07
2014 2014-06-04 0.07 0.35 < 0.07
2013 2013-12-11 0.07 0.35 < 0.07
2013 2013-12-09 0.07 0.35 < 0.07
2013 2013-12-09 0.07 0.35 < 0.07
molybdenum 1 40 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-16 1 40 < 1
2014 2014-06-16 1 40 < 1
2014 2014-06-04 1 40 < 1
2014 2014-06-04 1 40 < 1
2013 2013-12-11 1 40 < 1
2013 2013-12-09 1 40 < 1
2013 2013-12-09 1 40 < 1
2013 2013-12-09 1 40 < 1
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-16 1 70 < 1
2014 2014-06-16 1 70 < 1
2014 2014-06-04 1 70 < 1
2014 2014-06-04 1 70 < 1
2013 2013-12-11 1 70 < 1
2013 2013-12-09 1 70 < 1
2013 2013-12-09 1 70 < 1
2013 2013-12-09 1 70 < 1
chromium-6 0.03 0 1.2453 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-16 0.03 0 1.5
2014 2014-06-16 0.03 0 1.9
2014 2014-06-04 0.03 0 0.032
2014 2014-06-04 0.03 0 1.8
2013 2013-12-11 0.03 0 1.5
2013 2013-12-09 0.03 0 0.98
2013 2013-12-09 0.03 0 1.3
2013 2013-12-09 0.03 0 0.95
chromium 0.2 100 1.0525 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-16 0.2 100 1.4
2014 2014-06-16 0.2 100 1.5
2014 2014-06-04 0.2 100 < 0.2
2014 2014-06-04 0.2 100 1.5
2013 2013-12-11 0.2 100 1.3
2013 2013-12-09 0.2 100 0.8
2013 2013-12-09 0.2 100 1.1
2013 2013-12-09 0.2 100 0.82
strontium 0.3 1500 43.375 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-16 0.3 1500 61
2014 2014-06-16 0.3 1500 42
2014 2014-06-04 0.3 1500 40
2014 2014-06-04 0.3 1500 42
2013 2013-12-11 0.3 1500 55
2013 2013-12-09 0.3 1500 36
2013 2013-12-09 0.3 1500 35
2013 2013-12-09 0.3 1500 36
chlorate 20 210 11.375 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-16 20 210 < 20
2014 2014-06-16 20 210 < 20
2014 2014-06-04 20 210 46
2014 2014-06-04 20 210 < 20
2013 2013-12-11 20 210 < 20
2013 2013-12-09 20 210 < 20
2013 2013-12-09 20 210 45
2013 2013-12-09 20 210 < 20
1,1-dichloroethane 0.03 6.14 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-16 0.03 6.14 < 0.03
2014 2014-06-16 0.03 6.14 < 0.03
2014 2014-06-04 0.03 6.14 < 0.03
2013 2013-12-11 0.03 6.14 < 0.03
2013 2013-12-09 0.03 6.14 < 0.03
2013 2013-12-09 0.03 6.14 < 0.03

Lead and Copper Data


Lead and copper are recorded separately from other contaminants because of the Lead and Copper Rule. As with all other results, these are the findings at the water supply. Lead and copper can be — and often are — added to drinking water in between the water facility and a tap.

Sample ID Contaminant Sampling Start Date Sampling End Date Result
HI8015 lead 2013-01-01 2015-12-31 0.001mg/L
HI5409 lead 2010-01-01 2012-12-31 0.00063mg/L
HI1538 lead 2007-01-01 2009-12-31 0.0019mg/L

Violations


Known violations of the Safe Drinking Water Act as recorded by the EPA.

Compliance Dates Rule Violation Type Contaminant Name Status
2000-04-01 - 2000-04-30 Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Known
2000-01-01 - 2000-03-31 Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Known
1999-10-01 - 1999-12-31 Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Known
1999-07-01 - 1999-09-30 Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Known
1999-04-01 - 1999-06-30 Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Known
1999-01-01 - 1999-03-31 Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Known
1998-10-01 - 1998-12-31 Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Known
1998-07-01 - 1998-09-30 Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Known
1998-04-01 - 1998-06-30 Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Known
1998-01-01 - 1998-03-31 Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Known
1997-10-01 - 1997-12-31 Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Known
1997-07-01 - 1997-09-30 Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Known
1997-04-01 - 1997-06-30 Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Known
1997-03-01 - 1997-03-31 Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Known

What My Water Data Means


Water data isn't always easy to interpret, but by following the links on this page you should be able to have most of your questions answered. By clicking the name of a water contaminant or secondary substance you can learn about that specific substance. Ultimately this page should give you some insight towards learning if your water is safe, what water filter you should buy (if any), and how well your local water compares against other sources.

Sources


The origin of MyTapWater.org's water data is explained on our Data Sources page.

Why Is My Water Data Not More Recent?


The recency of the data for your ZIP code depends on the last your water source was tested, by a federal, state, or local agency. More information about the timing can be determined by learning about the dataset in question and seeing how often the EPA (other another governing body) mandated testing.