Sandy City    Government    Public Utilities    Water Quality Report    Consumer Confidence Report

2008

Contaminant

Range

MCL

MCLG

Most Likely Source

PRIMARY INORGANIC CONTAMINANTS

 

 

 

 

Antimony (mg/L)

 0.001-0.003

  0.006

 0.006

Erosion of naturally occurring deposits

Arsenic (mg/L)

 0.0007-0.00172

   0.01

  0.01

Erosion of natural deposits; runoff from orchards; runoff from glass and electronics production wastes

Barium (mg/L)

   0.0 -  0.122

     2

    2

Erosion of naturally occurring deposits

Chromium (mg/L)

   0.0 -

0.0048

    0.1

  0.1

Erosion of naturally occurring deposits

Cyanide (mg/L)

 <0.01

    0.2

  0.2

Erosion of naturally occurring deposits

Fluoride(mg/L)

0.2-1.2

     4

    4

Erosion of naturally occurring deposits

Mercury (mg/L)

  0.0-0.0022

  0.002

 0.002

Erosion of naturally occurring deposits

Thallium (mg/L)

0.0005 -  0.001

  0.002

0.0005

Leaching from ore processing sites and discharges from electronics, glass and drug factories

Nitrate (mg/L)

  0.08 -

  4.2

    10

  10

Runoff from fertilizer, leaching from spetic tanks, sewage and naturally 
eroding deposits

Nitrite (mg/L)

 <0.03

     1

   1

Runoff from fertilizer, leaching from
spetic tanks, sewage and naturally
eroding deposits

Total Nitrate & Nitrite (mg/L)

  0.08 -0.44

10

10

Runoff from fertilizer, leaching from
spetic tanks, sewage and naturally
eroding deposits

Selenium (mg/L)

 0.0 -0.0070

    0.05

  0.05

Erosion of naturally occurring deposits

Sodium (mg/L)

   0.0 -

  47.1

     NE

   NE

Erosion of naturally occurring deposits
road de-icing

Sulfate (mg/L)

5.7 - 66

  1000

   NE

Erosion of naturally occurring deposits

Total Dissolved Solids (mg/L)

  162 -  436

  2000

   NE

Soil runoff

Turbidity (NTU)

  0.019-  0.52

  0.3-5.0

   TT

Soil runoff, MCL if 0.5 for surface water and 5.0 for groundwater

LEAD & COPPER (Tested at customer tap)

 

 

 

 

Copper (mg/L)

 0.001  -  0.58

AL=1.3

1.3

Corrosion of household plumbing system

Lead (mg/L)

   ND - 0.027

AL=0.015

    0

Corrosion of household plumbing system

SECONDARY INORGANIC CONTAMINANTS

 

 

 

 

Aluminum (mg/L)

ND-0.11

 0.05-0.2

   NE

Erosion of naturally occurring deposits

Color (CU)

    0-5

    15

   NE

Decaying naturally occurring organic material

Chloride (mg/L)

  14.0 -  73.0

   250

   NE

Erosion of naturally occurring deposits, road de-icing

Iron (mg/L)

  0.02-  0.30

   0.3

   NE

Erosion of naturally occurring deposits

Manganese (mg/L)

  ND -  0.02

   0.05

   NE

Erosion of naturally occurring deposits

Odor (TON)

    0-1

    3

   NE

Various sources

pH (units)

 6.6-8.3

 6.5-8.5

   NE

Naturally occurring

Zinc (mg/L)

  ND -  0.01

    5

   NE

Erosion of naturally occurring deposits

NONREGULATED CONTAMINANTS

 

 

 

 

Bicarbonate (mg/L)

  112 -  320

   UR

   NE

Naturally occurring

Boron (mg/L)

  0.05 -0.12

   UR

   NE

Erosion of naturally occurring deposits

Calcium (mg/L)

 15-253

   UR

   NE

Erosion of naturally occurring deposits

Carbon Dioxide (mg/L)

  100 -  150

   UR

   NE

Naturally occurring

Total Hardness (mg/L) as CaCo3

 21-236

   UR

   NE

Erosion of naturally occurring deposits

Calcium Hardness (mg/L)

138-169

   UR

   NE

Erosion of naturally occurring deposits

Orthophosphates (mg/L)

0.0-0.05

   UR

   NE

Erosion of naturally occurring deposits

Phosphates (mg/L)

  <0.05

   UR

   NE

Erosion of naturally occurring deposits

Potassium (mg/l)

2.0 - 3.2

   UR

   NE

Erosion of naturally occurring deposits, treatment

Strontium (mg/L)

   0.26 -    0.40

   UR

   NE

Erosion of naturally occurring deposits

Alkalinity (mg/L)

15 - 166

   UR

   NE

Erosion of naturally occurring deposits

Magnesium (mg/L)

   8.9 -  12.7

   UR

   NE

Erosion of naturally occurring deposits

Metheyene Blue Active (mg/L)

  0.01 -  0.16

   UR

   NE

Naturally occurring

Silica (mg/L)

  8.1 - 16.0

   UR

   NE

Erosion of naturally occurring deposits

TSS (mg/L)

5.0-8.0

   UR

   NE

Suspended material from soil runoff

MICROBIOLOGICAL

 

 

 

 

Total Coliform, colonies/100mL

110 monthly

  >5%

    0

MCL for monthly compliance. All repeated samples were negative; no violations were issued. Human and animal fecal waste, naturally occurring in environment.

RADIOLOGICAL

 

 

 

 

Alpha Emitters (pCi/L)

   0.0 -  14.7

    15

   pCi/L

  15 pCi/L

Erosion of naturally occurring deposits

Beta/Photon Emitters (pCi/L)

   0.0 -

   6.7

    50

   NE

Erosion of naturally occurring deposits

Note: The MCL for beta particles is 4 mrem (millirems) per year.  EPA considers 50 pCi/L to be the level of concern for beta particles 

Radium 228 (pCi/L)

Combined Radium 226 & 228

0.0 - 4.7

0.0 - 2.0

     5

     5

   NE

   NE

Erosion of naturaly occurring deposits

Erosion of naturally occurring deposits

Radon (pCi/L)

   ND - 1749.5

    NE

   NE

Naturally occurring in soil

Strontium mg/L

  0.26 -0.40

    UR

   NE

Erosion of naturally occurring deposits

Strontium 90 (pCi/L)

  4.7 - 9

    NA

   NE

Decay of natural and man-made deposits 

Tritium (pCi/L)

  180 -

  342

    NA

   NE

Decay of natural and man-made deposits 

PESTICIDE/PBB/SOC CONTAMINANTS

 

 

 

 

Di(2-Ethylhexyl) Adipate (ug/L)

 ND-1

   400 

  400 

 

VOLATILE ORGANIC CONTAMINANTS

 

 

 

 

Tetrachloroethylene (mg/L)

 0.0008 

  0.005 

    0 

Improper disposal of dry cleaning and other solvents 

REGULATED ORGANICS

 

 

 

 

Bromodichloromethane (ppb)

0.0025

    NE

    NE

By-product of drinking water chlorination 

Chlorodibromomethane (ppb)

 0.0009

    NE

    NE

By-product of drinking water chlorination 

Chloroform (ppb)

 0.0049

    NE

    NE

By-product of drinking water chlorination 

DISINFECTION-BY-PRODUCTS

 

 

 

 

Tthm's [total Trihalomethanes] (ug/L)

   0.0 -  76.4

    80

    NE

By-product of drinking water chlorination

Chlorate (ug/L)

43-115

    NE

    NE

Treatment disinfection

Chlorite (ug/L)

39-283

    NE

    NE

Treatment disinfection

Total Haloacetic Acids (HAA5) (ug/L)

   0.0 -  58.5

    NE

    NE

Treatment disinfection

Total Haloacetic Acids (HAA6) (ug/L)

0.0001 - 0.0329

    NE

    NE

Treatment disinfection

ORGANIC MATERIAL

 

 

 

 

TOC (mg/L)

0.6 - 3.6

    UR

    NE

Naturally occurring

UV-254 (1/cm)

 0.011 - 0.048

    UR

    NE

Naturally occurring

 


DEFINITIONS FOR TABLE OF CONTAMINANTS:


ND
– Non-detects – Laboratory analysis indicates that the constituent is not present.
PPM – Parts per million or milligrams per liter (mg/l) – one part per million corresponds to one minute in two years or a single penny in $10,000.
PPB – Parts per billion or Micrograms per liter – one part per billion corresponds to one minute in 2,000 years, or a single penny in $10,000,000.
PPT – Parts per trillion or nanograms per liter (nanograms/l) – one part per trillion corresponds to one minute in 2,000,000 years, or a single penny in $10,000,000,000.
PCi/L – picocuries per liter – picocuries per liter is a measure of the radioactivity in water.
NTU – Nephelometric Turbidity Unit – Nephelometric Turbidity Unite is a measure of the clarity of water. Turbidity in excess of 5 NTU is just noticeable to the average person.
AL – Action Level – The concentration of a contaminant which, if exceeded, triggers treatment or other requirements which a water system must follow.
TT – Treatment Technique – A treatment technique is a required process intended to reduce the level of a contaminant in drinking water.
MCL – Maximum Contaminant Level – The highest level of a contaminant that is allowed in drinking water. MCL’s are set as close to the MCLG’s as feasible using the best available treatment technology.
MCLG – Maximum Contaminant Level Goal – The level of a contaminant in drinking water below which there is not known or expected risk to health. MCLG’s allow for a margin of safety.
NE – Not established.
UR – Unregulated.
Range – Range of measurements based on testing of Sandy City sources.
(a) The MCL for beta particles is 4 mrem (millirems) per year.  EPA considers 50 pCi/L to be the level of concern for beta particles.

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