Details for Dunkerton, City of - Legals - Ad from 2020-03-25

2019 WATER QUALITY REPORT
FOR
DUNKERTON MUNI WATER SUPPLY
This report contains important information regarding the water quality in our water system. The source of our water is groundwater.
Our water quality testing shows the following results:
CONTAMINANT

Total Haloacetic
Acids (ppb)
[HAA5]
Copper (ppm)

Lead (ppb)

MCL-(MCLG)

Compliance

Date

Violation

Source

Type

Value & (Range)

Yes/No

60 (N/A)

LRAA

6.00 (6-6)

09/30/2019

No

By-products of drinking water
disinfection

AL=1.3 (1.3)

90th

0.85 (0.0763-2.680)
1 sample(s)
exceeded AL

2018

No

Corrosion of household plumbing
systems; Erosion of natural
deposits; Leaching from wood
preservatives

AL=15 (0)

90th

2.60 (ND-318)
1 sample(s)
exceeded AL

2018

No

Corrosion of household plumbing
systems; erosion of natural deposits

RAA

2.6 (1.86-3.48)

09/30/2019

No

Water additive used to control microbes

950- DISTRIBUTION SYSTEM
Chlorine (ppm)

MRDL=4.0
(MRDLG=4.0)

02- FINISHED WATER SAMPLE TAP, #2
Sodium (ppm)

N/A (N/A)

SGL

52.1

06/11/2019

No

Erosion of natural deposits; Added to
water during treatment process

Nitrate [as N]
(ppm)

10 (10)

SGL

1.500

2019

No

Runoff from fertilizer use; Leaching from
septic tanks, sewage; Erosion of natural
deposits

03- FINISHED WATER SAMPLE TAP, #3
Barium (ppm)

2 (2)

SGL

0.244

06/27/2018

No

Discharge of drilling wastes; Discharge
from metal refineries; Erosion of natural
deposits

Arsenic (ppb)

10 (0)

SGL

2.10

06/27/2018

No

Erosion of natural deposits; Runoff
from orchards; Runoff from glass and
electronic production wastes

Selenium (ppb)

50 (50)

SGL

2.10

06/27/2018

No

Discharge from petroleum and metal
refineries; Erosion of natural deposits;
Discharge from mines

Fluoride (ppm)

4 (4)

SGL

0.5

06/27/2018

No

Water additive which promotes strong
teeth; Erosion of natural deposits;
Discharge from fertilizer and aluminum
factories

Sodium (ppm)

N/A (N/A)

SGL

27

06/11/2019

No

Erosion of natural deposits; Added to
water during treatment process

Note: Contaminants with dates indicate results from the most recent testing done in accordance with regulations.
DEFINITIONS
• Maximum Contaminant Level (MCL)-The
• Maximum Contaminant Level Goal (MCLG)
• ppb -- parts per billion.
highest level of a contaminant that is allowed
-- The level of a contaminant in drinking
• ppm -- parts per million.
in drinking water. MCLs are set as close
water below which there is no known or
• pCi/L - picocuries per liter
to the MCLGs as feasible using the best
expected risk to health. MCLGs allow for a
• N/ A - Not applicable
available treatment technology.
margin of safety.

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