WATER FROM UPPER TRINITY REGIONAL WATER DISTRICT

CONSTITUENTS DETECTED FOR 2009

Printer Friendly Version

Date

Substance

 Maximum Amount in UTRWD Water Range in UTRWD Water Maximum Contaminant Level Maximum Contaminant Level Goal Possible Source

Regulated at the Treatment Plant
06/09/2009 Fluoride (ppm) 0.29 N/A 4 4 Water additive, natural geology
06/09/2009 Nitrate (ppm) 0.50 N/A 10 10 Fertilizer runoff, septic tanks, wastewater plant effluent, animal waste runoff

10/09/2009

 Turbidity (ntu) 0.19 0.05 - 0.19

0.3*

 N/A Soil runoff
*Treatment Technique: MCL is achieved through coagulation, flocculation and filtration.

Regulated in the Distribution System

06/09/2009

 Total THM's (ppb)

31.7

N/A

80

0

 Disinfection by-product

06/09/2009

 Total HAA's (ppb) 11.50 N/A 60 0 Disinfection by-product

Unregulated Contaminants

04/29/2008

 N-nitrosodimethylamine (ppb) 0.0028 0.0025 - 0.0028 N/A N/A Nitrosamines are chemical by-products from the manufacture of numerous products including rubber, leather, and plastics. Foods such as bacon and malt beverages may also contain nitrosamines.

Radioactive Contaminants

06/09/2009

 Beta Emitters pCi/L 2.3 N/A 50 0 Decay of natural and man-made deposits
06/09/2009 Alpha Emitters pCi/L 0.6 N/A 15 0 Decay of natural and man-made deposits
06/09/2009 Radium 228 pCi/L 0.76 N/A 5 0 Decay of natural and man-made deposits

Synthetic Organic Chemicals Including Pesticides and Herbicides

6/9/2009

 Atrazine (ppb)

0.19

N/A/

3

3

 Herbicide runoff.

The charts above list contaminants detected in Upper Trinity Regional Water District's water.  In each case, the water provided by the Upper Trinity Regional Water District meets a higher standard than the Safe Drinking Water Standards established by law.  Numerous other tests for other contaminants were conducted, with none detected.  If you would like a complete list of undetected contaminants, please call us at (972) 219-1228.

Definitions:

 
Maximum Contaminant Level:  The highest level of a contaminant that is allowed in drinking water.
 
Maximum Contaminant Level Goal: The level of a contaminant in drinking water below which there is no known or expected risk to health. 
 
NTU: Nephelometric turbidity units. The unit used to measure  the turbidity of water.
 
Treatment Technique: A required process intended to reduce the level of a contaminant in drinking water.
 
Turbidity: A measure of water's clarity. How clear the water is can indicate how many particles are in it. The goal is to produce water with turbidity levels as low as possible. Turbidity has no health effect. However, turbidity can interfere with disinfection and provide a medium for   microbial growth. Excessive turbidity could allow the presence of disease-causing organisms. Such organisms can cause symptoms such as nausea, cramps, diarrhea, and associated headaches.

                                        

 
pCi/L:  Picocuries per liter. A measure of radioactivity in water equal to 10-12 curies. Quantity of radioactive material producing 2.22 nuclear transformations per minute.
 
ppm: Parts per million. One part per million equals one packet of artificial sweetener sprinkled into 250 gallons of iced tea.
 
ppb: Parts per billion. One part per billion is roughly equal to  one packet of artificial sweetener sprinkled into an Olympic-size swimming pool.
 
 

DATA FOR THIS REPORT IS THE MOST RECENTLY AVAILABLE IN ACCORDANCE WITH REGULATIONS.