Page 24 - Salem Magazine Spring 2011
P. 24

utility. If you want to learn more, please attend any of the regularly scheduled City Council meetings. They are held on the second and fourth Monday of each month in council chambers.
The City of Salem Water Department routinely monitors for constituents in your drinking water mandated by Federal and State laws. The following table shows the results of our monitoring for the period
of January 1st to December 31st, 2010. All drinking water, including bottled drinking water, may be reasonably expected to contain at least small amounts of some constituents. It’s important to remember that the presence of these constituents does not necessarily pose a health risk.
In the following table you will find many terms and abbreviations you might not
be familiar with. To help you better understand these terms we’ve provided the
following definitions:
Non-Detects (ND) - laboratory analysis indicates that the constituent is not present.
Parts per million (ppm) or Milligrams per liter (mg/l) - one part per million corresponds to one minute in two years or
a single penny in $10,000.
Parts per billion (ppb) or Micrograms per liter - one part per billion corresponds to one minute in 2,000 years, or a single penny in $10,000,000.
Parts per trillion (ppt) 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.
Parts per quadrillion (ppq) or Picograms per liter (picograms/l) - one part per quadrillion corresponds to one minute
in 2,000,000,000 years or one penny in $10,000,000,000,000.
Picocuries per liter (pCi/L) - picocuries per liter is a measure of the radioactivity in water.
Millirems per year (mrem/yr) - measure of radiation absorbed by the body.
Million Fibers per Liter (MFL) - million fibers per liter is a measure of the presence of asbestos fibers that are longer than 10 micrometers.
Nephelometric Turbidity Unit (NTU) - nephelometric turbidity unit is a measure of the clarity of water. Turbidity in excess of 5 NTU is just noticeable to the average person.
Action Level - The concentration of a contaminant which, if exceeded, triggers treatment or other requirements which a water system must follow.
Treatment Technique (TT) - A treatment technique is a required process intended to reduce the level of a contaminant in drinking water.
Maximum Contaminant Level - The “Maximum Allowed” (MCL) is the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.
Maximum Contaminant Level Goal - The “Goal”(MCLG) is the level of a contaminant in drinking water below which there is no known or expected risk to health. MCLGs allow for a margin of safety.
    TEST RESULTS
  Contaminant
    Violation Y/N
   Level Detected
  Unit Measurement
    MCLG
   MCL
   Likely Source of Contamination
   Microbiological Contaminants
  1. Total Coliform Bacteria
    N
   3 samples
  P/A
    0
 presence
of coliform bacteria > 5% of monthly samples
     Naturally present in the environment
  2. Fecal coliform and
E.coli
  N
 0
P/A
  0
a routine sample and repeat sample are total coliform positive, and one is also fecal coliform or E. coli positive
  Human and animal fecal waste
  3. Turbidity
    N
 0.014- 0.083
    NTU
    n/a
   0.3
   Soil runoff
  4. Cryptosporidium
  N
 1-2
Oocysts per 10 liters
  0
99% removal by filtration plus addition as required under the LT2ESWTR
  Human and animal fecal waste THIS IS UNTREATED WATER!!
  5. Giardia lamblia
    N
   2-7
 Cysts per 10 liters
     0
   99.9% removal or inactivation
 Human and animal fecal waste THIS IS UNTREATED WATER!!!
     Radioactive Contaminants (Most Recent Monitoring Period 2008)
  6. Beta/photon emitters
    N
   2.2
  mrem/yr
    0
   4
   Decay of natural and man-made deposits
 























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