Attachment_22_Consumer_Confidence_Report.pdf

Marine Corps Base Quantico

2013 Annual Drinking Water Quality Report

Mainside Water System PWSID 6153675

Introduc on

Marine Corps Base Quan co, GF, Installa on and Environment Division is pleased to present the Mainside Annual Water Quality Report for 2013. This report is designed to inform you about the quality of water and services we deliver to you every day.

Our constant goal is to provide you, the consumer, with a safe and depend‐ able supply of drinking water.

We are commi ed to ensuring the quality of your water. To help us meet this goal, we have established a Water Quality Response Team. Personnel from the Base Naval Health Clinic join with our Physical Science Technician, to respond to customer concerns and water quality ques ons. Together, they have the resources to test the chemical and bacteriological quality at the consumers tap.

Our Mainside water (PWSID No. 6153675) comes from protected surface water sources. The water is processed at the Mainside Water Treatment

Plant.

Summary

The Mainside Water Treatment Plant rou nely monitors for cons tuents in your drinking water according to State and Federal laws. This report shows the results of our monitoring for the period January 1 through December 31, 2013.

The sources of drinking water (both tap water and bo led 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 radioac ve material and can pick up substances resul ng from the presence of animals or from human ac vity.

Contaminants that may be present in source water include:

microbial contaminants: such as viruses and bacteria, which may come from sewage treatment plants, sep c systems, agricultural livestock opera‐ ons, and wildlife.

inorganic contaminants: such as salts and metals, which can be naturally occurring or result from urban stormwater runoff, industrial or domes c wastewater discharges, oil and gas produc on, mining, or farming.

pes cides and herbicides: which may come from a variety of sources such as agriculture, urban stormwater runoff, and residen al uses.

organic chemical contaminants: including synthe c and vola le organic chemicals, which are byproducts of industrial processes and petroleum produc on, and can also come from gas sta ons, urban stormwater runoff, and sep c systems.

radioac ve contaminants: which can be naturally occurring or be the result of oil and gas produc on and mining ac vi es.

In order to ensure that tap water is safe to drink, US Environmental Protec‐ on Agency (US EPA) prescribes regula ons that limit the amount of certain contaminants in water provided by public water systems. U.S. Food and Drug Administra on regula ons establish limits for contaminants in bo led water.

Drinking water, including bo led water, may reasonably be expected to contain at least a small amount of some contaminants. The presence of contaminants does not necessarily indicate that the water poses a health risk. More informa on about drinking water contaminants and poten al health effects can be obtained by calling the US EPA’s Safe Drinking water Hotline at 1‐800‐426‐4791 or visi ng their website at h p://water.epa.gov/ drink/index.cfm.

The Facts

This report contains informa on on all regulated contaminants found in your drinking water. Addi onally, over 85 water tests are performed for a variety of contaminant not found in the water delivered to the Base.

Maximum Contaminant Levels (MCL’s) are set at very stringent levels by the US EPA. In developing the standards USEPA assumes that the average adult drinks 2 liters of water each day throughout a 70‐year life span. US EPA generally sets MCL’s at levels that will result in no adverse health effects for some contaminants or a one‐in‐ten‐thousand to one‐in‐a‐million chance of having the described health effect for other contaminants.

The VDH conducted a source water assessment in 2002. The purpose was to determine the rela ve suscep bility of the source water to ac vi es in the watershed. Our source water was calculated to have a high suscep bility to contamina on due to ongoing Base ac vi es. There was no evidence of contamina on of the water source in any of our tes ng.

Microbial Analysis

Total Coliform: Coliforms are bacteria that are present naturally in the environment and are used as an indicator that other, poten ally harmful bacteria, may be present.

When Coliform bacteria are found, special follow‐up tests are done to determine if harmful bacteria are present in the water supply. If the limit is exceeded, the water supplier must no fy the public by newspaper, radio, or television.

We are pleased to announce the Base was in compliance.

The Distribu on System

We encourage our customers to contact us to report their observa ons.

At that me, we will visit the site and determine if we need to run addi onal tests. If you have any ques ons about this report or concerning your water u lity, please contact Mr. Larry Weedon, U lity Manager at (703) 784‐2246.

Water Plant Upgrades

Work started March 2014 to inspect the interior of filters, make needed repairs, recoat interior of filters and replace the filter media. This work is required so the Base can con nue to meet the EPA Standards for individual filter turbidity’s. Included in the referenced contract is addi onal treatment equipment and updated monitoring devices.

Should Some People Take Special Precau ons?

Some people may be more vulnerable to contaminants in drinking water than the general popula on. Immune system compromised persons such as persons with cancer undergoing chemotherapy, people who have undergone organ transplants, people with HIV/AIDS or other immune system disorders, some elderly and infants can be par ally at risk from infec ons. These people should seek advice about drinking water from their health care providers. US EPA/Center for Disease Control guidelines on appropriate means to lessen the risk of infec on by cryptosporidium and other microbiological contaminants are available from the US EPA

Safe Drinking Water Hotline at 1‐800‐426‐4791. We constantly monitor the water supply for various contaminants.

We strongly recommend that our customers not use water from the hot water tap for consump on.

Any contaminants found in the water may accumulate in the hot water tank. This would be true anywhere, regardless of the water source. This does not mean that there is anything wrong with our drinking water. All water tests are conducted on water from the cold‐water tap. Our concern is that the water quality is unknown when water from the hot‐water tap is consumed. We believe you are be er served by hea ng cold‐water for this purpose.

Lead and Copper

During August and September 2012, the Base completed tes ng for Lead and Copper in the distribu on system. Samples from thirty sites were tested according to an approved sampling plan. All samples were below US EPA Ac on Level (15 ppb). As a result, the next sample event for lead and copper is scheduled in 2015.

More informa on about drinking water contaminants and poten al health effects can be obtained by calling the USEPA’s Safe Drinking water Hotline at 1‐800‐426‐4791 or visi ng their website at h p://water.epa.gov/drink/index.cfm. 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. Marine Corps Base Quan co is responsible for providing high quality drinking water, but cannot control the variety of materials used in plumbing components.

When your water has been si ng for several hours, you can minimize the poten al for lead exposure by flushing your tap for 15 to 30 seconds, un l it becomes cold or reaches a steady temperature before using the water for drinking or cooking.

If you are concerned about lead in your water, you may wish to have your water tested. Informa on on lead in drinking water, tes ng methods, and steps you can take to minimize exposure is available from the US EPA’s Safe Drinking water Hotline at 1‐800‐426‐4791 or visit h p://water.epa.gov/safewater/lead.

Addi onal Tests and Monitoring Unregulated Contaminant Monitoring Rule 2 (UCMR2)

The Safe Drinking Water Act (SDWA), as amended in 1996, requires the US EPA to establish criteria for a program to monitor unregulated contaminant and publish a list of contaminants to be monitored every five years. US EPA published the first set of contaminants in 1999. This final regula on meets the SDWA requirement by publishing the next set of unregulated contaminants to be monitored and the requirements for

Marine Corps Base Quantico such monitoring. This final rule describes a design for second Unregulated Contaminant Monitoring Cycle (UCMR2) of 2007‐2011. US EPA is requiring the monitoring of 25 chemicals using 5 different analy cal methods. UCMR 2 monitoring began in 2008 and was completed in 2010.

Implementa on of this final rule benefits the environment by providing USEPA and other interested par es with scien fically valid data on the occurrence of the contaminants in drinking water; thereby, permi ng the assessment of the popula on poten ally being exposed and the levels of exposure. These results are the primary resource of occurrence and provide exposure data for the US EPA to determine whether to regulate these contaminants.

UCMR2 tes ng for 2008 through 2010 indicates all cons tuents (e.g. flame retardants, pes cides, explosives) tested are non‐detectable per US EPA guidelines.

Individual Distribu on System Evalua on (IDSE)

In March 2010 USEPA and VDH approved the Base IDSE plan. The new sampling schedule started October 2013. This evalua on of the distribu on system will allow the Base to be er monitor disinfec on byproducts in the distribu on system. Once this informa on has been obtained and evaluated, the Base will know where to make necessary changes in the distribu on system or treatment process.

Conclusion

Thank you for allowing us to con nue providing your family with clean, quality water this year. In order to maintain a safe and dependable water supply we some mes need to make improvements that benefits all of our customers.

Water mains and fire hydrants are flushed twice a year. This may cause temporary water discolora on. We apologize for any inconvenience. Our goal is to provide water of excellent quality to every customer. We in the U li es Sec on, work around the clock to provide top quality water to every tap.

Our customers can help protect themselves and our water system by careful use of this resource, which is the heart of our community, our way of life and our children’s future.

Stay Hydrated!

Our energy level is greatly affected by the amount of water we drink. A 5% drop in body fluids will cause a 25‐30% loss of energy in the average person.

If you lose 5% of your body’s water, you will likely run a fever.

If you lose 10% of your body’s water, you will have difficulty moving and may not be able to move at all.

Losing 12% of your body’s water can result in death.

Most people can exist for over 30 days without food, but only 4‐7 days without water. Even mild dehydra on will slow down metabolism as much as 3%.

One glass of water will reduce midnight hunger pangs for most people.

Water leaves the stomach five minutes a er consump on.

Lack of water is one of the primary triggers of day me fa gue.

Preliminary research indicates that 8‐10 glasses of water a day could significantly ease back and joint pain for up to 80% of sufferers.

A mere 2% drop in body water can trigger fuzzy, short‐term memory, trouble with basic math, and difficulty focusing on the computer screen or on a printed page.

Marine Corps Base Quantico

MCLG

Percent less than 5% Highest no.

Number of Monthly

Samples Violation Major source in drinking water.

Positive

NA 15 No Naturally present in the environment.

0 NA NA NA No Naturally present in the environment.

Metals (units) MCLG AL 90th Percentile Number of sites tested

No. of Sites

Exceeding action level.

Range Viloation

Copper (ppm) 0 1.3 0.239 30 0 0.0225 ‐ 0.476 No

Lead (ppb) 0 15 3.94 30 0 <2.0 ‐ 10.1 No

Parameter (units) Samples collected from distribution system.

MCLG MCL Average Range Violation

Fluoride (ppm) 4 4 0.75 0.48 ‐ 1.09 No

Barium (ppm) 2 2 0.022 N/A No

Nitrate‐Nitrite (ppm) 10 10 0.06 N/A No

Parameter (units) Samples collected from distribution system.

MRDLG MRDL Average Range Violation

Chlorine (ppm) 4 4 1.33 0.10 ‐ 3.10 No

Radiological (units) MCLG MCL Average Range Tested Violation

Gross Beta (pCi/L) 0 50* NA <1.2 ‐ Below mininum detectable level.

2013 No

Radium 228 (pCi/L) 0 5 NA <0.7 ‐ Below mininum detectable level.

2013 No

Gross Alpha (pCi/L) 0 15 NA <0.5 ‐ Below mininum detectable level.

2013 No

Disinfection By‐Products (units) MCLG MCL Violation

Trihalomethane THM (ppb) 0 80 No

Haloacetic Acids Group HAA5 (ppb) 0 60 No

Parameter Violation

Total Organic Carbons No

Parameter (units) Annual avg. Max. Detected Source

Turbidity (NTU) 0.05 0.59 Soil runoff.

Secondary Contaminants (units) Violation

Manganese (ppm) No

Chloride (ppm) No

Sulfate (ppm) No

Total Dissolved Solid (ppm) No

Non Regulated Contaminants (units) MCLG MCL

Bromodichloromethane (ppb) NRL NRL

Chloroform (ppb) NRL NRL

Sodium (ppm) NRL NRL

Non‐Detects (ND)

Parts Per Million (ppm) / Milligrams Per

Liter (mg/L) Parts per billion (ppb) / Micrograms per liter (ug/L)

Picocuries Per Liter (pCi/l)

Nephelometric Turbidity Unit (NTU)

Action Level (AL)

Treatment Techniques (TT)

Maximum Contaminant Level (MCL)

Maximum Contaminant Level Goal

(MCLG)

Maximum Residual Disinfection Level

(MRDL)

Maximum Residual Disinfection Level

Goal (MRDLG)

No Regulatory Limit (NRL)

Corrosion of household plumbing systems.

Range Lowest percentage of Monthly samples Meeting

Limit

Treatment Technique measuresTurbidity levels during the treatment process after the water is filtered, but before disinfection. The turbidity level of filtered water shall be less than or equal to 0.3 NTU in at least 95 percent of the monthly measurements and at no time exceed 1 NTU.

December values were 99.7%

Treatment Technique (TT) Compliance with treatment technique is a removal ratio of 1.0 and higher. The ratio of removal is the actual Total Organic Carbon removed between the source water and treated water.

1.49% 0.72% ‐ 1.84% Naturally present in environment.

* EPA considers 50 pCi/l to be the level of concern. Test results from 2013; because results are so low the next tests currently scheduled for 2019.

Range Source

Erosion of natural deposits.

Quarterly Running Annual Average

Total Organic Carbon has no health effects. It provides a medium for the formation of disinfection byproducts. These byproducts include trihalomethanes and haloacetic acids. Compliance with the treatment technique reduces the formation of these disinfection byproducts.

Secondary Regulated Contaminants

Source

Erosion of natural deposits.

SourceRange

Running Annual Average

Erosion of natural deposits.

MCL

TT

MCL

TT 0.01 ‐ 0.59

MCL

One positive sample per month

Source

A routine sample & a repeat sample are coliform positive & one is also fecal coliform.

Leaching from septic tanks, fertilizer, erosion of natural deposits.

The level of a drinking water disinfectant below which there is no known or expected risk to health. MRDLG does not reflect the benefits of the use of disinfectants.

Picocuries per liter is a measure of the radioactivity in the water.

Nephelometric turbidity unit is a measure of the clarity of water. Turbidity in excess of 5 NTU is just visibly cloudy with the naked eye.

Concentration of a contaminant which, if exceeded, triggers treatment or other requirements a water system must follow.

A treatment technique is a required process intended to reduce level of contaminant in drinking water

The highest level of a contaminate that is allowed in drinking water. MCL's are set as close to the MCLG's as feasible using the best available treatment technology

The "Goal" (MCLG) is the level of a contaminant in drinking water below which there is no known or expected risk to MCLG's allow for a margin of safety.

The highest level of disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfection is necessary for control of microbial contaminants.

25.1

Parts per million and milligrams per liter are the same. One part per million corresponds to one minute in two years, or a penny in $10,000.

Laboratory analysis indicates that the constituent is below the detection level.

Results

Naturally present in the environment. May cause water discoloration.0.015

Key to acronyms and abbreviations.

Non Regulated Substance Monitored

31.8

Naturally present in the environment; addition of water treatment substances.

Naturally present in environment.

SMCL

0.05

By‐product of drinking water disinfection.

Naturally present in the environment; addition of water treatment substances.

Source

A substance or chemical constituent that is of interest but currently does not have a regulatory limit or concentration.

Naturally present in environment.

Source

By‐product of drinking water disinfection.

By‐product of drinking water disinfection.

19 ‐ 112 Included in low to high range are

Stage 1 and Stage 2 DBP results.

33 ‐ 60 Included in low to high range are

Stage 1 and Stage 2 DBP results.

8.5

Parts per billion and Micrograms per liter are the same. One part per billion corresponds to one minute in 2000 years, or a penny in $10,000,000.

Results ‐ Sample collected from Point of Entry into drinking water distribution system.

2.5

Marine Corps Base Quantico 2013 Annual Drinking Water Quality Report

Mainside Water System PWSID 6153675

Source

By‐product of drinking water disinfection.

Source

Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits.

Added to drinking water as a disinfectant.

Microbiological Results

Corrosion of household plumbing systems.

Added to the drinking water to promote dental health; erosion of natural deposits; discharge from fertilizer and aluminum factories.

The Lead and Copper results are from August and September 2012; next test are to be conducted in June‐August 2015. All samples are below the EPA Safe Drinking Water Act‐Action Level.

Total Coliform Bacteria

Primary Regulated Contaminants

May not exceed one positive sample per month. No positive samples for 2013.

Fecal Coliform