HERITAGE RANCH COMMUNITY SERVICES DISTRICT

CONSUMER CONFIDENCE REPORT FOR WATER

Heritage Ranch Community Services District is responsible for the safe supply of water to the community of Heritage Ranch.  We test your drinking water for many constituents as required by State & Federal Regulations. This report shows the results of our monitoring for the 2006 calendar year.

Este informe contiene información muy importante sobre su agua potable.
Tradúzcalo ó hable con alguien que lo entienda bien.

Report summary:  There were no contaminants exceeding state imposed primary drinking water limits nor any violations of any treatment or monitoring and reporting requirements.

Dear Customer,

The water source for Heritage Ranch is surface water from the Nacimiento River, approximately 3,000 feet downstream from Lake Nacimiento.  Well Number 1, located in the Nacimiento River, delivers water to our water treatment plant to remove any contaminants and adds chlorine as a disinfectant to protect you against microbial contaminants.  The Jim McWilliams Water Treatment Plant is a state of the art facility operated by our own State Certified Treatment Operators who are dedicated to provide you with a safe and clean supply of drinking water.  We conduct hundreds of tests every year for over 80 possible contaminants in your drinking water.  The District performed a sanitary survey and source water assessment update in December 2005.  This brochure is intended to provide you information because informed customers are our best allies.  The Heritage Ranch Community Services District Board of Directors meet on the third Thursday of every month at 4:00 pm. at the District Office located at 4870 Heritage Road.  For more information about your drinking water, call John D’Ornellas, Manager, at the District office at 227-6230, email contact.us@heritageranchcsd.com.

 

TERMS USED IN THIS REPORT:

Maximum Contaminant Level (MCL): The highest level of a contaminant that is allowed in drinking water.  Primary MCLs are set as close to the PHGs (or MCLGs) as is economically and technologically feasible.  Secondary MCLs are set to protect the odor, taste, and appearance of drinking water.

Primary Drinking Water Standards (PDWS): MCLs for contaminants that affect health along with their monitoring and reporting requirements, and water treatment requirements.

Secondary Drinking Water Standards (SDWS):  MCLs for contaminants that affect taste, odor, or appearance of the drinking water.  Contaminants with SDWSs do not affect the health at the MCL levels.

ND: not detectable at testing limit 

ppm: parts per million or milligrams per liter (mg/L)

ppb: parts per billion or micrograms per liter (ug/L)

ppt: parts per trillion or nanograms per liter (ng/L)

pCi/L: picocuries per liter (a measure of radiation)

Public Health Goal (PHG): The level of a contaminant in drinking water below which there is no known or expected risk to health.  PHGs are set by the California Environmental Protection Agency.

 

Maximum Contaminant Level Goal (MCLG): The level of a contaminant in drinking water below which there is no known or expected risk to health.  MCLGs are set by the U.S. Environmental Protection Agency (USEPA).

Maximum Residual Disinfectant Level (MRDL):  The level of a disinfectant added for water treatment that may not be exceeded at the consumer’s tap.

Maximum Residual Disinfectant Level Goal (MRDLG): The level of a disinfectant added for water treatment below which there is no known or expected risk to health.  MRDLGs are set by the U.S. Environmental Protection Agency.

Treatment Technique (TT):  A required process intended to reduce the level of a contaminant in drinking water.

Regulatory Action Level (AL): The concentration of a contaminant which, if exceeded, triggers treatment or other requirements which a water system must follow.

Variances and Exemptions:  Department permission to exceed an MCL or not comply with a treatment technique under certain conditions.

General Information about Drinking Water

The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells.  As water travels over the surface of the land or through the ground, it dissolves naturally-occurring minerals and, in some cases, radioactive material, and can pick up substances resulting from the presence of animals or from human activity.

All drinking water, including bottled water, may reasonably be expected to contain at least small amounts of some contaminants.  The presence of contaminants does not necessarily indicate that the water poses a health risk.  More information about contaminants and potential health effects can be obtained by calling the United States Environmental Protection Agency’s (USEPA) Safe Drinking Water Hotline (1-800-426-4791).

Contaminants that may be present in source water include:

·         Microbial contaminants, such as viruses and bacteria, that may come from sewage treatment plants, septic systems, agricultural livestock operations, and wildlife. 

·         Inorganic contaminants, such as salts and metals, that can be naturally-occurring or result from urban stormwater runoff, industrial or domestic wastewater discharges, oil and gas production, mining, or farming.

·         Pesticides and herbicides, which may come from a variety of sources such as agriculture, urban stormwater runoff, and residential uses.

·         Organic chemical contaminants, including synthetic and volatile organic chemicals, that are byproducts of industrial processes and petroleum production, and can also come from gas stations, urban stormwater runoff, and septic systems.

·         Radioactive contaminants, which can be naturally-occurring or be the result of oil and gas production and mining activities.

 

In order to ensure that tap water is safe to drink, USEPA and the state Department of Health Services (Department) prescribe regulations that limit the amount of certain contaminants in water provided by public water systems.  Department regulations also establish limits for contaminants in bottled water that must provide the same protection for public health.  We treat our water according to Department regulations.  The purpose of this report is to let you know of any detected chemicals or other constituents.  As the report summarized below, there were no violations of Primary Drinking Water standards in 2006.

Tables 1, 2, 3, 4, and 5 list all of the drinking water contaminants that were detected during the most recent sampling for the constituent.  The presence of these contaminants in the water does not necessarily indicate that the water poses a health risk.  The Department requires us to monitor for certain contaminants less than once per year because the concentrations of these contaminants are not expected to vary significantly from year to year.  Some of the data, though representative of the water quality, are more than one year old.

 

Table 1 - sampling results showing the detection of coliform bacteria

Microbiological Contaminants

Highest No. of detections

No. of months in violation

MCL

MCLG

Typical Source of Bacteria

Total Coliform Bacteria

None

None

More than 1 sample in a month with a detection.

0

Naturally present in the environment.

Fecal Coliform or
E. coli

None

None

A routine sample and a repeat sample detect total coliform and either sample also detects fecal coliform or E. coli.

0

Human and animal fecal waste.

 

 

Table 2 - sampling results showing the detection of Lead and copper

Lead and Copper

Sample Date

No of Sample collected

90th percentile level detected

No. Sites exceeding AL

AL

PHG

Typical Source of Contaminant

Lead (ppb)

2004

10

9.7

None

15

2

Internal corrosion of household water plumbing systems; discharges from industrial manufacturers; erosion of natural deposits.

Copper (ppm)

2004

10

.720

None

1.3

0.17

Internal corrosion of household water plumbing systems; erosion of natural deposits; leaching from wood preservatives.

 

TAble 3 - sampling results for sodium and hardness

Chemical or Constituent
(and reporting units)

Sample Date

Level Detected

Range of Detections

MCL

PHG

(MCLG)

Typical Source of Contaminant

Sodium (ppm)

2006

7.9

n/a

None

none

Generally found in ground and surface water.

Hardness (ppm)

2006

130

n/a

None

none

Generally found in ground and surface water.

 

TAble 4 - detection of contaminants with a Primary Drinking Water Standard

Chemical or Constituent
(and reporting units)

Sample Date

Level Detected

Range of Detections

MCL

(MRDL)

PHG

(MCLG)

(MRDLG)

Typical Source of Contaminant

Aluminum (ppm)

2006

.076

n/a

1

.6

Erosion of natural deposits; residue from some surface water treatment processes

Fluoride (ppm)

2006

.10

n/a

2

1

Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and aluminum factories.

**TTHMs [Total trihalomethanes] (ppb)

2006

67.5

56.33 – 67.5

80

n/a

By-product of drinking water chlorination.

**Halocetic Acids (ppb)

2006

55.45

46.6 – 55.45

60

n/a

By-product of drinking water disinfection.

**Chlorine (ppm)

2006

.87

.44 – 1.47

4 as Cl2

n/a

Drinking water disinfection added to treatment.

**Distribution system sampling results.

TAble 5 - detection of contaminants with a Secondary Drinking Water Standard

Chemical or Constituent
(and reporting units)

Sample Date

Level Detected

Range of Detections

MCL

PHG

(MCLG)

Typical Source of Contaminant

Sulfate (ppm)

2006

29

n/a

500

n/a

Runoff/leaching from natural deposits’ industrial wastes.

Total Dissolved Solids [TDS] (ppm)

2006

160

n/a

1000

n/a

Runoff/leaching from natural deposits.

Specific Conductance (micromhos)

2006

260

n/a

1600

n/a

Substances that form ions when in water; seawater influence.

Turbidity (units)

2006

.70

n/a

5

n/a

Soil runoff.

 

TAble 5 - detection of contaminants with a Secondary Drinking Water Standard

Chemical or Constituent
(and reporting units)

Sample Date

Level Detected

Range of Detections

MCL

PHG

(MCLG)

Typical Source of Contaminant

Chloride (ppm)

2006