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City of Grant, Nebraska

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2017 Water Quality Report

 

City Of Grant

 

Annual Water Quality Report

For January 1 to December 31, 2017

 

This report is intended to provide you with important information about your drinking water and the efforts made by the City Of Grant water system to provide safe drinking water.

 

Para Clientes Que Hablan Español: Este informe contiene información muy importante sobre el agua que usted bebe.  Tradúzcalo ó hable con alguien que lo entienda bien.

 

For more information regarding this report, or to request a hard copy, contact:

 

GARY BECKLER

308-352-6101

 

If you would like to observe the decision-making processes that affect drinking water quality, please attend the regularly scheduled meeting of the Village Board/City Council.  If you would like to participate in the process, please contact the Village/City Clerk to arrange to be placed on the agenda of the meeting of the Village Board/City Council.

 

Drinking water, including bottled water, may reasonably be expected to contain at least small amounts of some conta- minants. The presence of contaminants does not necessarily indicate that water poses a health risk.  More information about contaminants and potential health effects can be obtained by calling the EPA's Safe Drinking Water Hotline (800-426-4791).

 

Source Water Assessment Availability:

The Nebraska Department of Environmental Quality (NDEQ) has completed the Source Water Assessment.  Included in the assessment are a Wellhead Protection Area map, potential contaminant source inventory, vulnerability rating, and source water protection information. To view the Source Water Assessment or for more information please contact the person named above on this report or the NDEQ at (402) 471-6988 or go to www.deq.state.ne.us .

 

In order to ensure that tap water is safe to drink, EPA prescribes regulations which limit the amount of certain contaminants in water provided by public water systems.  FDA regulations establish limits for contaminants in bottled water which must provide the same protection for public health.

 

Sources of Drinking Water:

The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs, and groundwater 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.

 

The source of water used by City Of Grant is ground water. 

 

Contaminants that may be present in source water include:

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

*  Inorganic contaminants, such as salts and metals, which can be naturally occurring or result from urban storm water 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 storm water runoff, and residential uses.

*  Organic chemical contaminants, including synthetic and volatile organic chemicals, which are by-products of industrial processes and petroleum production, and can also come from gas stations, urban storm water runoff, and septic systems.

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

 

Drinking Water Health Notes:

Some people may be more vulnerable to contaminants in drinking water than the general population. Immuno-compromised persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/AIDS or other immune system disorders, some elderly, and infants can be particularly at risk from infections. These people should seek advice about drinking water from their health care providers.  EPA/CDC guidelines on appropriate means to lessen the risk of infection by Cryptosporidium and other microbial contaminants are available from the Safe Drinking Water Hotline (800-426-4791) or the Department of Health and Human Services, Division of Public Health, Office of Drinking Water at 402-471-2541.

 

If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children.  Lead in drinking water is primarily from materials and components associated with service lines and home plumbing.  All Community water systems are responsible for providing high quality drinking water, but cannot control the variety of materials used in plumbing components.  When your water has been sitting for several hours, you can minimize the potential for lead exposure by flushing your tap for 30 seconds to 2 minutes before using water for drinking or cooking.  If you are concerned about lead in your water, you may wish to have you water tested.  Information on lead in drinking water, testing methods, and steps you can take to minimize exposure is available from the Safe Drinking Water Hotline (800-426-4791), at http://www.epa.gov/safewater/lead or at the DHHS/DPH/Office of Drinking Water (402-471-2541).

 

The City Of Grant is required to test for the following contaminants:  Coliform Bacteria, Antimony, Arsenic, Asbestos, Barium, Beryllium, Cadmium, Chromium, Copper, Cyanide, Fluoride, Lead, Mercury, Nickel, Nitrate, Nitrite, Selenium, Sodium, Thallium, Alachlor, Atrazine, Benzo(a)pyrene, Carbofuran, Chlordane, Dalapon, Di(2-ethylhexyl)adipate, Dibromochloropropane, Dinoseb, Di(2-ethylhexyl)- phthalate, Diquat, 2,4-D, Endothall, Endrin, Ethylene dibromide, Glyphosate, Heptachlor, Heptachlor epoxide, Hexachlorobenzene, Hexachlorocyclopentadiene, Lindane, Methoxychlor, Oxamyl (Vydate), Pentachlorophenol, Picloram, Polychlorinated biphenyls, Simazine, Toxaphene, Dioxin, Silvex, Benzene, Carbon Tetrachloride, o-Dichloro- benzene, Para-Dichlorobenzene, 1,2-Dichlorethane, 1,1-Dichloroethylene, Cis-1,2,-Dichloroethylene, Trans-1,2-Dichloroethylene, Dichloromethane, 1,2-Dichloropropane, Ethylbenzene, Monochlorobenzene, 1,2,4-Trichloro- benzene, 1,1,1-Trichloroethane, 1,1,2-Trichloroethane, Trichloroethylene, Vinyl Chloride, Styrene, Tetrachloroethylene, Toluene, Xylenes (total), Gross Alpha (minus Uranium & Radium 226), Radium 226 plus Radium 228, Sulfate, Chloroform, Bromodichloromethane, Chlorodibromomethane, Bromoform, Chlorobenzene, m-Dichlorobenzene, 1,1-Dichloropropene, 1,1-Dichloroethane, 1,1,2,2-Tetrachlorethane, 1,2-Dichloropropane, Chloromethane, Bromomethane, 1,2,3-Trichloropropane, 1,1,1,2-Tetra- chloroethane, Chloroethane, 2,2-Dichloropropane, o-Chlorotoluene, p-Chlorotoluene, Bromobenzene, 1,3-Dichloropropene, Aldrin, Butachlor, Carbaryl, Dicamba, Dieldrin, 3-Hydroxycarbofuran, Methomyl, Metolachlor, Metribuzin, Propachlor.

 

How to Read the Water Quality Data Table:

The EPA and State Drinking Water Program establish the safe drinking water regulations that limit the amount of contaminants allowed in drinking water. The table shows the concentrations of detected substances in comparison to the regulatory limits. Substances not detected are not included in the table. The state requires monitoring of certain contaminants less than once per year because the concentrations of these contaminants do not change frequently. Therefore, some of this data may be older than one year.

MCL (Maximum Contaminant Level) – The highest level of a conta- minant that is allowed in drinking water.  MCLs are set as close to the MCLGs 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 no known or expected risk to health.  MCLGs allow for a margin of safety. 

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

MRDL (Maximum Residual Disinfectant Level) – The highest level of a disinfectant allowed in drinking water.

N/A – Not applicable.

 

Units in the Table:

ND – Not detectable.

ppm (parts per million) = mg/L (milligrams per liter) – One ppm or one mg/L corresponds to 1 gallon of water in 1,000,000 gallons of water.

ppb (parts per billion) = ug/L ( micrograms per liter) – One ppb corresponds to 1 gallon of water  in 1,000,000,000 gallons of water.

pCi/L (Picocuries per liter) – Radioactivity concentration unit.

ug/L ( micrograms per liter) – Measurement of radioactivity.

RAA (Running Annual Average) – An ongoing annual average calculation of data from the most recent four quarters.

LRAA (Locational Running Annual Average) – An ongoing annual average calculation of data from the most recent four quarters at each sampling location.

90th Percentile – Represents the highest value found out of 90% of the samples taken in a representative group. If the 90th percentile is greater than the action level, it will trigger a treatment or other requirements that a water system must follow. 

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

 

City Of Grant                                                                                                         TEST RESULTS     Date Printed: 4/18/2018                                                                                             NE3113503  

 

Microbiological

Highest No. of Positive Samples

MCL

MCLG

Likely Source Of Contamination

Violations Present

No Detected Results were Found in the Calendar Year of 2017

 

Lead and Copper

Monitoring Period

90th Percentile

Range

Unit

AL

Sites Over AL

Likely Source Of Contamination

COPPER, FREE

2014 - 2016

0.106

0.00503 - 0.124

ppm

1.3

0

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

LEAD

2014 - 2016

1.05

0.51 - 1.17

ppb

15

0

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

 

Regulated Contaminants

Collection Date

Highest Value

Range

Unit

MCL

MCLG

Likely Source Of Contamination

 

 

 

 

 

 

 

 

 ARSENIC

 5/23/2016

 9.21

 8.91 - 9.21

 ppb

 10

 0

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

 BARIUM

 7/6/2016

 0.126

 0.126

 ppm

 2

 2

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

 CHROMIUM

 7/6/2016

 0.589

 0.589

 ppb

 100

 100

 Discharge from steel and pulp mills; Erosion of natural deposits.

 FLUORIDE

 7/6/2016

 0.702

 0.702

 ppm

 4

 4

 Erosion of natural deposits; water additive which promotes strong teeth; Fertilizer discharge.

 NITRATE-NITRITE

 11/20/2017

 2.78

 2.38 - 2.78

 ppm

 10

 10

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

 

 

Radiological Contaminants

Collection Date

Highest Value

Range

Unit

MCL

MCLG

Likely Source Of Contamination

 

 

 

 

 

 

 

 

GROSS ALPHA, INCL. RADON & U

8/3/2015

4.69

3.07 - 4.69

pCi/L

15

0

Erosion of natural deposits

 

 

Unregulated Water Quality Data

Collection Date

Highest Value

Range

Unit

Secondary MCL

 

 

 

 

 

 

 NICKEL

 7/18/2016

 0.00063

 0.00063

 mg/L

 0.1

 SULFATE

 2/10/2016

 17

 17

 mg/L

 250

 

During the 2017 calendar year, we had the below noted violation(s) of drinking water regulations.

Type

Category

Analyte

Compliance Period

No Violations Occurred in the Calendar Year of 2017

 

The City Of Grant has taken the following actions to return to compliance with the Nebraska Safe Drinking Water Act:

 

 

 

 

Additional Required Health Effects Language:

 

While your drinking water meets EPA's standard for arsenic, it does contain low levels of arsenic.  EPA's standard balances the current understanding of arsenic's possible health effects against the costs of removing arsenic from drinking water.  EPA continues to research the health effects of low levels of arsenic which is a mineral known to cause cancer in humans at high concentrations and is linked to other health effects such as skin damage and circulatory problems.

 

There are no additional required health effects violation notices.