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Page 1: 2013 Annual Water Quality Reporttotalenvironmentalsolutions.com/.../LAKE_ROYALE_CCR_2013.pdf · 2015-06-16 · 2013 Annual Water Quality Report LAKE ROYALE SUBDIVISION Franklin County,
Page 2: 2013 Annual Water Quality Reporttotalenvironmentalsolutions.com/.../LAKE_ROYALE_CCR_2013.pdf · 2015-06-16 · 2013 Annual Water Quality Report LAKE ROYALE SUBDIVISION Franklin County,

2013 Annual Water Quality Report LAKE ROYALE SUBDIVISION

Franklin County, North Carolina Public Water Supply I.D. No. NC0235108 !!

The Water We Drink: Total Environmental Solutions, Inc. (TESI) is pleased to present our Annual Water Quality Report for the year 2013. This report is designed to inform you about the quality of your water and the services we deliver to you every day. Our constant goal is to provide you with a safe and dependable supply of drinking water. We want you to understand the efforts made to continually improve the water treatment process and protect our water resources. TESI is committed to providing you with this information because informed customers are our best allies. !What EPA Wants You to Know: 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 any health risk. More information about contaminants and potential health effects can be obtained by calling the Environmental Protection Agency’s Safe Drinking Water Hotline at 1-800-426-4791. !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. Franklin County Public Utilities is 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 your 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 or at http://www.epa.gov/safewater.lead. !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 decrease the risk of infection by Cryptosporidium and other microbial contaminants are available from the Safe Drinking Water Hotline (800-426-4791). . The sources of drinking water (both tap and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs and wells. As water travels over the surface of 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 human or animal activity. 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 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, which are by-products of industrial processes and petroleum production. This 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, the Environmental Protection Agency (EPA) prescribes regulations which limit the amount of certain contaminants in water provided by public water systems. Food and Drug Administration regulations establish limits for contaminants in bottled water which must provide the same protection for public health. !When You Turn on Your Tap, Consider the Source: The water source for the Lake Royale Subdivision is purchased water from Franklin County Public Utilities. Presently, Franklin County Public Utilities has two water sources. Raw water from Louisburg comes from the Tar River. Henderson supplies Franklin County Public Utilities with water from Kerr Lake, which is a surface supply. We are pleased to report that the drinking water source for Lake Royale is safe and meets all federal and state requirements. !Source Water Assessment Program (SWAP) Results: The North Carolina Department of Environmental and Natural Resources (DENR), Public Water Supply (PWS) Section, and Source Water Assessment Program (SWAP) conducted assessments for all drinking water sources across North Carolina. The purpose of the assessments was to determine the susceptibility of each drinking water source (well or surface water intake) to Potential Contaminant Sources (PCSs). The results of the assessment are available in SWAP Assessment Reports that include maps, background information, and a relative susceptibility rating of Higher, Moderate or Lower. !The relative susceptibility rating of each source of Franklin County Utilities was determined by combining the contaminant rating (number and location of PCSs within the assessment area) and the inherent vulnerability rating (i.e., characteristics or existing conditions of the well or watershed and its delineated assessment. The assessment findings are summarized below. !Louisburg:

!Henderson:

!!!The complete SWAP Assessment report for Franklin County may be viewed on the Web at: www.ncwater.org/pws/swap. Please note that because SWAP results and reports are periodically updated by the PWS Section, the results available on this web site may differ from the results that were available at the time this CCR was prepared. To obtain a printed copy of this report, please mail a written request to: Source Water Assessment Program—Report Request 1634 Mail Service Center, Raleigh NC 27699-1634 or email request to [email protected]. Please indicate your system name, PWSID, and provide your name, mailing address and phone number. If you have any questions about the SWAP report please contact the Source Water Assessment staff by phone at 919-707-9098. !It is important to understand that a susceptibility rating of “higher” does not imply poor water quality, only the systems’ potential to become contaminated by PCS’s in the assessment area. !What if I Have Questions?: If you have any questions about this report or concerning your water, please contact Mr. Jack Gibbons at 252-478-4704. !

Source Name Susceptibility Rating SWAP Report Date

Tar River Higher March, 2005

Source Name Susceptibility Rating SWAP Report Date

Kerr Lake Moderate February, 2010

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System Violations:

!Water Quality Data Tables: We routinely monitor for over 150 contaminants in your drinking water according to Federal and State laws. The tables below list all the drinking water contaminants that we detected in the last round of sampling for the particular contaminant group. The presence of contaminants does not necessarily indicate that water poses a health risk. Unless otherwise noted, the data presented in this table is from testing done January 1, 2012 through December 31, 2012. !EPA or the State requires us to monitor for certain contaminants in your drinking water according to Federal and State laws. This table shows the results of the Louisburg water plant for the period of January 1st to December 31, 2013. !Microbiological Contaminants:

Turbidity:

**Turbidity is a measure if the cloudiness of the water. We monitor it because it is a good indicator of the effectiveness of our filtration system. The turbidity rule requires that 95% or more of the monthly samples must be less than or equal to 0.3 NTU. !Inorganic Contaminants:

!Nitrate/Nitrite Contaminants:

!Nitrate/Nitrite Contaminants:

!!Synthetic Organic Chemical (SOC) Contaminants Including Pesticides and Herbicides:

Violation Name Violation Category Analyte Compliance Period

FOLLOW-UP OR ROUTINE TAP M/R (LCR)

Failure to pull samples within the prescribed time frame

Lead and Copper Rule 1/1/2011 – 12/31/2013

Contaminant (Units) MCL Violation Y/N Your Water MCLG MCL Likely Source of Contamination

Total Coli form Bacteria (presence or absence

N 0 0 One positive sample Naturally present in the environment

Fecal Coli form or E. coli ( presence or absence)

N 0 0 0 (Note: The MCL is exceeded if a routine sample and repeat sample are total coli form positive, and one is also fecal coli form or E. coli positive)

Human and animal fecal waste

Contaminant (Units) MCL Violation Y/N

Your Water Treatment Technique (TT) Violation if: Likely Source of Contamination

Turbidity (NTU) Highest single turbidity measurement

N .50 NTU Turbidity> 1 NTU Soil runoff

Turbidity (NTU) Lowest monthly percentage(%) of samples meeting turbidity limits

N 99.4% Less than 95% of monthly turbidity measurements are <0.3 NTU !!Soil runoff

Contaminants Sample Date MCL Violation Y/N

Your Water Range MCLG MCL Likely Source of Contamination

Barium(ppm) 6/2013 N .028 N/A 2 2 Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits

Fluoride (ppm)

6/2013 N .78 N/A 4 4 Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and aluminum

factories

Contaminants MCL Violation Y/N Your Water Range MCLG MCL Likely Source of Contamination

Nitrate (as Nitrogen)(ppm

N 1.67 N/A 10 10 Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits

Contaminants Sample Date Your Water Range Secondary MCL

Sulfate 6/2013 4.8 N/A 250

Contaminants Sample Date MCL Violation Y/N

Your Water Range MCLG MCL Likely Source of Contamination

Di(2-ethyllexyl) Adipate(ppb)

7/2010 N 1.67 N/A 400 400 Discharge from chemical factories

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!Lead and Copper Contaminants:

!!Total Organic Carbon:

!

!!

Dalapon(ppb) 6/2013 & 9/2013

N 1.5 1.30 -1.70 200 200 Runoff from herbicide used on rights of way

Contaminants Sample Date Your Water # of sites found above AL

MCLG AL Likely Source of Contamination

Copper(ppm) (90th

9/2012 .254 0 1.3 AL=1.3 Corrosion of household plumbing systems; erosion of natural deposits

Lead(ppb) (90th

9/2012 4.3 0 0 AL-15 Corrosion of household plumbing systems; erosion of natural deposits

Contaminant (units)

TT Violation Y/N

Your Water(RAA Removal Ratio)

Range Monthly Removal Ratio Low-High

MCLG TT Likely Source of Contamination Compliance Method (Step 1 or ACC#__)

Total Organic Carbon (removal ratio) (TOC)-Treated

N 1.15 .48-1.77 N/A TT Naturally present in the environment

Step 1

STEP 1 TOC Removal Requirements

Source Water TOC (mg/L) Source Water Alkalinity MG/L as CaCO3 ( in percentages)

0-60 >60-120 >120

> 2.0 – 4.0 35.0 25.0 15.0

>4.0 – 8.0 45.0 35.0 25.0

> 8.0 50.0 40.0 30.0

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Disinfectants and Disinfection Byproducts Contaminants:

**For HAA5: Some people who drink water containing haloacetic acids in excess of the MCL over many years have an increased risk of getting cancer. !Other Miscellaneous Water Characteristics Contaminants:

!Cryptosporidium: The Town of Louisburg’s system monitored for Cryptosporidium and found levels of 12 Oocysts. !Cryptosporidium is a microbial pathogen found in surface water throughout the U.S. Although filtration removes Cryptosporidium, the most commonly-used filtration methods cannot guarantee 100 percent removal. Our monitoring indicates the presence of these organisms in our source water and/or finished water. Current test methods do not allow us to determine if the organisms are dead or if they are capable of causing disease. Ingestion of Cryptosporidium may cause cryptosporidiosis, an abdominal infection. Symptoms of infection include nausea, diarrhea, and abdominal cramps. Most healthy individuals can overcome the disease within a few weeks. However, immune-compromised people, infants and small children, and the elderly are at greater risk of developing life-threatening illness. We encourage immune-compromised individuals to consult their doctor regarding appropriate precautions to take to avoid infection. Cryptosporidium must be ingested to cause disease, and it may be spread through means other than drinking water. !The Town of Louisburg Water Treatment Facility participates in the NC Area Wide Optimization Program. A turbidity (water cloudiness) removal goal of 0.1 ntu (nephelometric turbidity units) or less in 95% of samples taken each month was established. The MCL (maximum contaminant level) of 0.3 ntu in 95% of samples per month is required. We have participated in NCA WOP since 2003. Our facility received the Certificate of Facility Optimization-Turbidity Removal award for 2012.This award was presented by the NC Division of Water Resources-Public Water Supply Section. We have met the removal goal each year since 2003. !The City of Henderson routinely monitors for contaminants in your drinking water according to Federal and State Laws. This table shows the results of the Henderson’s Water Plant for the period of January 1st to December 31st, 2013. !Sampling Results:

!

Contaminant (units)

TT Violation Y/N

Your Water(RAA Removal Ratio)

Range Monthly Removal Ratio Low-High

MCLG MCL Likely Source of Contamination

TTHM(ppb) (Total Trihalomethanes)

N 10.0 21.8-77.9 N/A 80 By-product of drinking water chlorination

HAA5(ppb) (Total Haloacetic Acids)

N 11.0 32.4-77.9 N/A 60 By-product of drinking water chlorination

Chlorine(ppm N .94 .21-1.87 MRDLG=4 MRDL=4

Water additive used to control microbes

Contaminant (Units) Sample Date Your Water Range Low/High SMCL

Sodium(ppm) 6/2013 18.7 N/A N/A

pH 6/2013 7.3 N/A 6.5 to 8.5

Regulated Substances

Substance (Unit of Measure) Year Sampled MCL (MRDL)

MCLG (MRDLG)

Amount Detected

Range Low-High

Violation Typical Source

Chlorine (ppm) 2013 (4) (4) .88 0.05-1.72 No Water additive used to control microbes

Fluoride (ppm) 2013 4 4 .79 .48-1.31 No Erosion of natural deposits; Water additive which promotes strong teeth; Discharge from fertilizer and aluminum factories

Halo acetic Acids (HAA) 2013 60 NA 26 3-48 No By-product of drinking water disinfection

TTHMs (Total Trihalomethanes) (ppb)

2013 80 NA 47 27-110 No Naturally present in the environment

Total Organic Carbon (TOC) (ppm)

2013 TT NA 1.29 1.00-2.07 No Naturally present in the environment

Turbidity (NTU) 2013 TT=1 NTU NA .15 0.02-0.15 No Soil runoff

Turbidity ( Lowest monthly percent of samples meeting limit)

2013 TT=95% of samples<0.3 NTU

NA 100 N/A No Soil runoff

Tap water samples were collected for lead and copper analyses from sample sites throughout the community

Substance (Unit of Measure)

Year Sampled

AL MCLG Amount Detected (90

Sites above AL/Total Sites

Violation Typical Source

Copper (ppm)

2011 1.2999999523162842 1.3 .073 0/30 No Corrosion of household plumbing systems; Erosion of natural deposits; Leaching from wood preservatives

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!

!Secondary Substances:

!!!!

Substance (Unit of Measure) Year Sampled MCL (MRDL)

MCLG (MRDLG)

Amount Detected

Range Low-High

Violation Typical Source

Haloacetic Acids 2009 N/A N/A .23.9 ND-61 No By-product of drinking water disinfection

TTHM’s (Total Trihalomethanes)-Stage 2 (ppb)

2009 N/A N/A 71.3 26-165 No By-product of drinking water disinfection

Substance (Unit of Measure)

Year Sampled SMCL MCLG Amount Detected

Range Low-High

Violation No

Typical Source

Fluoride (ppm) 2013 2.0 NA .72 N/A No Erosion of natural deposits; Water additive promotes strong teeth; Discharge from fertilizer and aluminum factories.

pH (Units) 2013 6.5-8.5 NA 7.1 N/A No Naturally occurring

Sulfate (ppm) 2012 250 NA 22.4 N/A No Runoff/leaching from natural deposits; Industrial wastes

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Unregulated and Other Substances:

!!Turbidity: Turbidity is a measure of the cloudiness of water. We monitor it because it is a good indicator of the effectiveness of our filtration system. The turbidity rule requires that 95 percent or more of the monthly samples must be less than or equal to 0.3 NTU. !Initial Distribution System Evaluation: We were required by the U.S. EPA to conduct an evaluation of our distribution system. This is known as an Initial Distribution System Evaluation (IDSE) and is intended to identify locations in our distribution system that has elevated disinfection by-product concentrations. Disinfection by-product (e.g., HAAs and TTHMs) result from continuous disinfection of drinking water and form when disinfectants combine with organic matter that naturally occurs in the source water. !

************************************************************ Franklin County Test Results 2013

Franklin County Public Utilities routinely monitors for contaminants in your drinking water according to Federal and State laws. This table shows the results for the period of January 1st to December 31st, 2013. !

!TTHM: Some people who drink water containing trihalomethanes in excess of MCL over many years may experience problems with their liver, kidneys, or central nervous systems, and may have an increased risk of getting cancer. ! HAA5: Some people who drink water containing haloacetic acids in excess of the MSL over many years may have an increased risk of getting cancer. !We have learned through our monitoring and testing that some contaminants have been detected, however, the EPA has determined that your water IS SAFE at these levels. !Infants and young children are typically more vulnerable to lead in drinking water than the general population. It is possible that lead levels at your home may be higher than at other homes in the community as a result of materials used in your home’s plumbing. If you are concerned about the elevated lead levels in your home’s water, you may wish to have your water tested and flush your tap for thirty seconds to two minutes before using the water. Additional information is available from the Safe Drinking Water Hotline (1-800-246-4791). !All sources of drinking water are subject to potential contamination by substances that are naturally occurring or manmade. These substances can be microbes, inorganic or organic chemicals and radioactive 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 described for many regulated constituents, a person would have to drink two liters of water every day at the MCL level for a lifetime to have a one-in-a million chance of having the described health effect. !Nitrates- As a precaution, we always notify physicians and health care providers in the area if there is ever a higher than normal level of nitrates in the water supply. !Lead- Lead in drinking water is rarely the sole cause of lead poisoning, but it can add to a person’s total lead exposure. All potential sources of lead in the household should be identified and removed, replaced or reduced. !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 systems 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. !While your drinking water meets EPA’s standard for arsenic, it does contain low levels of arsenic. EPS’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. !EPA/CDC guideline on appropriate means to lessen the risk of infection by cryptosporidium and other microbiological contaminants are available for the Safe Drinking Water Hotline (1-800-426-4791). !Thank you for allowing us to continue to provide your family with clean, quality safe drinking water this year. In order to maintain a safe and dependable water supply, we sometimes need to make improvements that will benefit all of our customers. !We at TESI, work around the clock to provide top quality drinking water to every tap of every customer of the Lake Royale Subdivision Water System. We ask that all our customers help us to protect and conserve our water sources, which are the heart of our community, our way of life, and our children’s future. Please call our office if you have any questions. !

Substance (Unit of Measure Year Sampled Amount Detected Range Low-High

Typical Source

Sodium (ppm) 2013 15.9 NA Naturally present in the environment

Contaminant Violation Y/N Level Detected Unit of Measure MCG/L MCL Likely Source of Contamination

Copper (Tested every 3 years)

N Last tested 2011 mg/l .0061 Al=1.3 Corrosion of household plumbing systems; Erosion of natural deposits; leaching from wood preservatives

Lead (Tested every 3 years)

N Last tested 2011

mg/l <0.003 Al=15 Corrosion of household plumbing systems; Erosion of natural deposits; leaching from wood preservatives

TTHM (Tested quarterly)

N 0.058 mg/l .080 .080 By-product of drinking water chlorination

HAA N 0.037 mg/l .060 .60 By-product of drinking water chlorination

Bacteria (Tested monthly)

N

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! !IMPORTANT INFORMATION ABOUT YOUR DRINKING WATER !

LAKE ROYALE S/D HAS NOT MET MONITORING REQUIREMENTS We are required to monitor your drinking water for specific contaminants on a regular basis. Results of regular monitoring are an indicator of whether or not our drinking water meets health standards. During the compliance period specified in the table below, we did not complete all monitoring or testing for the contaminants listed and therefore cannot be sure of the quality of your drinking water during that time.

!**See the bottom of this notice for further information on contaminants. !What should I do? There is nothing you need to do at this time. !What is being done? The lead and copper samples were pulled in September 2011 instead of September 2013 & are therefore invalid. Samples will be pulled this year (2014) and again in 2016 to ensure that compliance is maintained. !Please share this information with all the other people who drink this water, especially those who may not have received this notice directly (for example, people in apartments, nursing homes, schools, and businesses). You can do this by posting this notice in a public place or distributing copies by hand or mail. !For more information, please contact:

Contaminant Group List !(AS) Asbestos -includes testing for Chrysotile, Amphibole and Total Asbestos. (BA)Total Coliform Bacteria- includes testing for Total Coliform bacteria and Fecal/E.co// bacteria. Testing for Fecal/E.coli bacteria is required if total coliform is present in the sample. (BB)Bromate/Bromide- includes testing for Bromate and/or Bromide. (CD) Chlorine Dioxide/Chlorite- includes testing for Chlorine Dioxide and/or Chlorite. (DI) Disinfectant Residual must be tested with the collection of each compliance bacteriological sample, at the same time and site. Fecal Indicators- includes E.coli, enterococci or coliphage. (HAA5)- Haloacetic Acids include Monochloroacetic Acid, Dichloroacetic Acid, Trichloroacetic Acid, Monobromoacetic Acid, Dibromoacetic Acid. (IC) Inorganic chemicals-include Antimony, Arsenic, Barium, Beryllium, Cadmium, Chromium, Cyanide, Fluoride, Iron, Manganese, Mercury, Nickel, pH, Selenium, Sodium, Sulfate, and Thallium. (LC) Lead and Copper are tested by collecting the required number of samples and testing each of the samples for both lead and copper. (NT) Nitrate/ (NI) Nitrite- includes testing for nitrate and/or nitrite. (RA) Radionuclides- includes Gross Alpha, Radon, Uranium, Combined Radium, Radium 226, Radium 228, Potassium 40 (Total), Gross Beta, Tritium, Strontium 89, Strontium 90, Iodine 131, and Cesium 134. (SOC) Synthetic Organic Chemicals/Pesticides- include 2,4-D, 2,4,5-TP (Silvex), Alachlor, Atrazine, Benzo(a)pyrene, Carbofuran, Chlordane, Dalapon, Di(2-ethylhexyl)adipate, Di(2-ethylhexyl)phthalate, Dibromochloropropane (DBCP), Dinoseb, Endrin, Ethylene dibromide (EDB), Heptachlor, Heptachlor Epoxide, Hexachlorobenzene, Hexachlorocyclopentadiene, Lindane, Methoxychlor, Oxamyl(vydate), PCBs, Pentachlorophenol, Picloram, Simazine, Toxaphene. (TOG)- Total Organic Carbon -includes testing for Alkalinity, Dissolved Organic Carbon (DOC), Total Organic Carbon (TOC) and Ultraviolet Absorption 254 (UV254). Source water samples must be tested for both TOC and Alkalinity. Treated water samples must be tested for TOC. Source water samples and treated water samples must be collected on the same day. (TTHM)- Total Trihalomethanes- include Chloroform, Bromoform, Bromodichloromethane, and Dibromochloromethane.

!CONTAMINANT

GROUP** FACLITY ID NO./ SAMPLE POINT ID

COMPLIANCE PERIOD BEGIN DATE

NUMBER OF SAMPLES/ SAMPLING FREQUENCY

WHEN SAMPLES WERE TAKEN OR WILL BE

TAKEN

!LEAD AND COPPER

!D01

!JANUARY 1, 2011

!20 PER 3-YEAR

JUNE - SEPTEMBER 2014

Kam Lubben System Name LAKE ROYALE SID

System Address (Physical) 20 Lake Royale, Louisburg, NC 27549

Phone Number 800-372-9712

System Number NC0235108

System Address (Mailing Address) P.O. Box 14059 Baton Rouge, LA 70898-4059

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(VOC) -Volatile Organic Chemicals -include 1,2,4-Trichlorobenzene, Cis-1,2-Dichloroethylene, Xylenes (Total), Dichloromethane, o-Dichlorobenzene, p-Dichlorobenzene, Vinyl Chloride, 1,1,-Dichloroethylene, Trans-1,2,-Dichloroethylene, 1,2-Dichloroethane, 1,1,1- Trichloroethane, Carbon Tetrachloride, 1,2-Dichloropropane, Trichloroethylene, 1,1,2-Trichloroethane, Tetrachloroethylene, Chlorobenzene, Benzene, Toluene, Ethylbenzene, and Styrene. (WQP) Water Quality Parameters (for Lead and Copper Rule)- includes Calcium, Orthophosphate (as P04), Silica, Conductivity, pH, Alkalinity and Water Temperature.