Loading...
HomeMy Public PortalAbout1999 Annual Drinking Water Quality Report Annual rinking Water Quality Report City Of McCall Water Treatment Facility September 1999 We are pleased to present to you this year's Annual Quality Water Report. This report is designed to inform you about the quality water and 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 we make to continually improve the water treatment process and protect our water resources. We are committed to ensuring the quality of your water. Our water source is Payette Lake. There are two intake pump stations, Davis Beach and Legacy Park. Water is pumped to the Water Treatment plant in Spring Mountain Ranch. If you have any questions about this report or concerning your water utility, please contact Gary Kimball at 634-1853. We want our valued customers to be informed about their water utility. If you want to learn more, please attend any of our regularly scheduled meetings. They are held every other Thursday at City Hall. The City Of McCall Water Treatment Facility routinely monitors for constituents in your drinking water according to Federal and State laws. This table shows the results of our monitoring for the period of January 1, 1998 to December 31, 1998. All drinking water, including bottled drinking water, may be reasonably expected to contain at least small amounts of some constituents. It is important to remember that the presence of these constituents does not necessarily pose a health risk. In this table, you will find many terms and abbreviations you may not be familiar with. To help you better understand these terms we have provided the following definitions: N/A -Not applicable Non-Detects (ND) - Laboratory analysis indicates that the constituent is notD1 3 Parts per million (ppm) or Milligrams per liter (mg/1) Parts per billion (ppb) or Micrograms per liter(ug/L) I � 2 �! ' Parts per trillion (ppt) or Nanograms per liter (nanograms/l) Parts per quadrillion (ppq) or Picograms per liter (picograms/l) Picocuries per liter (pCA) - Picocuries per liter is a measure of the radioactivity in water. Millirems per year (mrem/yr) - Measure of radiation absorbed by the body. Million Fibers per Liter (MFL) - Million fibers per liter is a measure of the presence of asbestos fibers that are longer than 10 micrometers. Nephelometric Turbidity Unit (NTU) -Nephelometric turbidity unit is'a measure of the clarity of water. Turbidity in excess of 5 NTU is just noticeable to the average person. Page 1 A ._..o..�wiw.'n."._. ���� �y 4{{�. II i t. Action Level- The concentration of a contaminant, which, if exceeded, triggers treatment, or other requirements, which a water system must follow. Treatment Technique (7T) - A treatment technique is a required process intended to reduce the level of a contaminant in drinking water. Maximum Contaminant Level- The"Maximum Allowed" (MCL) is the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology. Maximum Contaminant Level Goal- The"Goal"(MCLG) is 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. TEST RESULTS Contaminant Violation Level Unit MCLG Date MCL Likely Source of Contamination Y/N Detected Measurement Tested Microbiological Contaminants 1.Total Coliform Bacteria N N/D 0 Monthly Presence of Naturally present in the coliform environment bacteria in 5% of monthly samples 2.Fecal coliform and 0 A routine Human and animal fecal waste E.coli sample and _ repeat sample N/A are total coliform positive,and one is also fecal coliform or E. col i positive 3.Turbidity n/a TT Soil runoff N N/A Radioactive Contaminants 5.Alpha emitters N 0.0 pCi/1 0 15 Erosion of natural deposits Inorganic Contaminants 7.Antimony N 2 ppb 6 07/96 6 Discharge from petroleum refineries;fire retardants;ceramics; electronics;solder 8.Arsenic N N/D ppb n/a 07/96 50 Erosion of natural deposits;runoff from orchards;runoff from glass and electronics production wastes 9.Asbestos N 0.18 MFL 7 07/96 7 Decay of asbestos cement water mains;erosion of natural deposits 10.Barium N j ppm 2 07/96 2 Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits Page 2 5 TEST RESULTS Contaminant Violation Level Unit MC LG Date MCL Likely Source of Contamination Y/N Detected Measurement Tested Inorganic Contaminants (Contd.) 11.Beryllium N 0.2 ppb 4 07/96 4 Discharge from metal refineries and coal-burning factories; discharge from electrical, aerospace,and defense industries 12.Cadmium N 0.5 ppb 5 07/96 5 Corrosion of galvanized pipes; erosion of natural deposits; discharge from metal refineries; runoff from waste batteries and paints 13.Chromium N 2 ppb 100 07/96 100 Discharge from steel and pulp mills;erosion of natural deposits 14.Copper N 0.42 ppm 1.3 12/98 AL=1.3 Corrosion of household plumbing systems;erosion of natural deposits;leaching from wood preservatives 15.Cyanide N NOD ppb 200 07/96 200 Discharge from steel/metal factories;discharge from plastic and fertilizer factories 16.Fluoride N 0.2 ppm 4 07/96 4 Erosion of natural deposits;water additive which promotes strong teeth;discharge from fertilizer and aluminum factories 17.Lead N 11 ppb 0 12/98 AL=15 Corrosion of household plumbing systems,erosion of natural deposits 18.Mercury(inorganic) N 0.2 ppb 2 07/96 2 Erosion of natural deposits; discharge from refineries and factories;runoff from landfills; runoff from cropland 19.Nitrate(as Nitrogen) N N/D ppm 10 07/96 10 Runoff from fertilizer use;leaching from septic tanks,sewage;erosion of natural deposits 20.Nitrite(as Nitrogen) N 0.01 ppm 1 07/96 1 Runoff from fertilizer use;leaching from septic tanks,sewage;erosion of natural deposits 21.Selenium N 5 ppb 50 07/96 50 Discharge from petroleum and metal refineries;erosion of natural deposits;discharge from mines 22.Thallium N 0.6 ppb 0.5 07/96 2 Leaching from ore-processing sites;discharge from electronics, glass,and drug factories Synthetic Organic Contaminants including Pesticides and Herbicides 23.2,4-D N N/D ppb 70 02/98 70 Runoff from herbicide used on row crops 24.2,4,5-TP(Silvex) N N/D ppb 50 02/98 50 Residue of banned herbicide 25.Acrylamide N N/D 0 02/98 TT Added to water during sewage/wastewater treatment 26.Alachlor N N/D ppb 0 02/98 2 Runoff from herbicide used on row crops 27.Atrazine N N/D ppb 3 02/98 3 Runoff from herbicide used on row crops 28.Benzo(a)pyrene(PW N N/D nanograms/1 0 02/98 200 Leaching from linings of water storage tanks and distribution lines 29.Cazbofuran N N/D ppb 40 02/98 40 Leaching of soil fumigant used on rice and alfalfa 30.Chlordane N N/D ppb 0 02/98 2 Residue of banned termiticide Page 3 TEST RESULTS Contaminant Violation Level Unit MCLG Date MCI Likely Source of Contamination Y/N Detected Measurement Tested Synthetic Organic Contaminants including Pesticides and Herbicides (Contd.) 31.Dalapon N N/D ppb 200 02/98 200 Runoff from herbicide used on rights of way 32.Di(2-ethylhexyl) N N/D ppb 400 02/98 400 Discharge from chemical factories adi ate 33.Di(2-ethylhexyl) N N/D ppb 0 02/98 6 Discharge from rubber and phthalate chemical factories 34.Dibromochloropropane N N/D nanograms/1 0 02/98 200 Runoff/leaching from soil fumigant used on soybeans,cotton, pineapples,and orchards 35.Dinoseb N N/D ppb 7 02/98 7 Runoff from herbicide used on soybeans and vegetables 36.Diquat N N/D ppb 20 02/98 20 Runoff from herbicide use 37.Dioxin N N/D picograrns/1 0 02/98 30 Emissions from waste incineration [2,3,7,8-TCDD] and other combustion;discharge from chemical factories 38.Endothall N N/D ppb 100 02/98 100 Runoff from herbicide use 39.Endrin N N/D ppb 2 02/98 2 Residue of banned insecticide 40.Epichlorohydrin N N/D 0 02/98 TT Discharge from industrial chemical factories;an impurity of some water treatment chemicals 41.Ethylene dibromide N N/D nanograms/1 0 02/98 50 Discharge from petroleum refineries 42.Glyphosate N N/D ppb 700 02/98 700 Runoff from herbicide use 43.Heptachlor N N/D nanograms/1 0 02/98 400 Residue of banned termiticide 44.Heptachlor epoxide N N/D nanograms/1 0 02/98 200 Breakdown of heptachlor s 45.Hexachlorobenzene N N/D ppb 0 02/98 1 Discharge from metal refineries and agricultural chemical factories 46.Hexachlorocyclo- N N/D ppb 50 02/98 50 Discharge from chemical factories pentadiene 47.Lindane N N/D nanograms/1 200 02/98 200 Runoff/leaching from insecticide used on cattle,lumber,gardens 48.Methoxychlor N N/D ppb 40 02/98 40 Runoff/leaching from insecticide used on fruits,vegetables,alfalfa, livestock 49.Oxamyl[Vydate] N N/D ppb 200 02/98 200 Runoff/leaching from insecticide used on apples,potatoes and tomatoes 50.PCBs[Polychlorinated N N/D nanograms/I 0 02/98 500 Runoff from landfills;discharge of bi hen ls] waste chemicals 51.Pentachlorophenol N N/D ppb 0 02/98 1 Discharge from wood preserving factories 52.Picloram N N/D ppb 500 02/98 500 Herbicide runoff 53.Simazine N N/D ppb 4 02/98 4 Herbicide runoff 54.Toxaphene N N/D ppb 0 02/98 3 Runofffleaching from insecticide used on cotton and cattle Page 4 TEST RESULTS Contaminant Violation Level Unit =DsateMCL Likely Source of ContaminationY/N Detected Measuremented Volatile Organic Contaminants 55.Benzene N N/D ppb 0 06/97 5 Discharge from factories;leaching from gas storage tanks and landfills 56.Carbon tetrachloride N N/D ppb 0 06/97 5 Discharge from chemical plants and other industrial activities 57.Chlorobenzene N N/D ppb 100 06/97 100 Discharge from chemical and agricultural chemical factories 58.o-Dichlorobenzene N N/D ppb 600 06/97 600 Discharge from industrial chemical factories 59.p-Dichlorobenzene N N/D ppb 75 06/97 75 Discharge from industrial chemical factories 60. 1,2-Dichloroethane N N/D ppb 0 06/97 5 Discharge from industrial chemical factories 61. l,l-Dichloroethylene N N/D ppb 7 06/97 7 Discharge from industrial chemical factories 62.cis-1,2-ichloroethylene N N/D ppb 70 06/97 70 Discharge from industrial chemical factories 63. trans-1,2- N N/D ppb 100 06/97 100 Discharge from industrial chemical Dichloroethylene factories 64.Dichloromethane N N/D ppb 0 06/97 5 Discharge from pharmaceutical and chemical factories 65. 1,2-Dichloropropane N N/D ppb 0 06/97 5 Discharge from industrial chemical factories 66.Ethylbenzene N N/D ppb 700 06/97 700 Discharge from petroleum refineries 67. Styrene N N/D ppb 100 06/97 100 Discharge from rubber and plastic factories;leaching from landfills 68.Tetrachloroethylene N N/D ppb 0 06/97 5 Leaching from PVC pipes; discharge from factories and dry cleaners 69. 1,2,4- N N/D ppb 70 06/97 70 Discharge from textile-finishing Trichlorobenzene factories 70. 1,1,1-Trichloroethane N N/D ppb 200 06/97 200 Discharge from metal degreasing sites and other factories 71. 1,1,2-Trichloroethane N N/D ppb 3 06/97 5 Discharge from industrial chemical factories 72.Trichloroethylene N N/D ppb 0 06/97 5 Discharge from metal degreasing sites and other factories 73.TTHM N 71.4 ppb 0 06/97 100 By-product of drinking water [Total trihalomethanes chlorination 74.Toluene N N/D ppm 1 06/97 1 Discharge from petroleum factories 75.Vinyl Chloride N N/D ppb 0 06/97 2 Leaching from PVC piping; discharge from plastics factories 76.Xylenes N N/D ppm 10 06/97 10 Discharge from petroleum factories;discharge from chemical factories Microbiological Contaminants: (3)Turbidity-Turbidity has no health effects. However,turbidity can interfere with disinfection and provide a medium for microbial growth. Turbidity may indicate the presence of disease-causing organisms. These organisms include bacteria, viruses, and parasites that can cause symptoms such as nausea,cramps,diarrhea, and associated headaches. Page 5 Inorganic Contaminants: F (7) Antimony - Some people who drink water containing antimony well in excess of the MCL over many years could experience increases in blood cholesterol and decreases in blood sugar. (9)Asbestos- Some people who drink water containing asbestos in excess of the MCL over many years may have an increased risk of developing benign intestinal polyps. (10)Barium-Some people who drink water containing barium in excess of the MCL over many years could experience an increase in their blood pressure. (11) Beryllium - Some people who drink water containing beryllium well in excess of the MCL over many years could develop intestinal lesions. (12) Cadmium- Some people who drink water containing cadmium in excess of the MCL over many years could experience kidney s damage. (13) Chromium - Some people who use water containing chromium well in excess of the MCL over many years could experience allergic dermatitis. (14)Copper- Copper is an essential nutrient,but some people who drink water containing copper in excess of the action level over a relatively short amount of time could experience gastrointestinal distress. Some people who drink water containing copper in excess of the action level over many years could suffer liver or kidney damage. People with Wilson's Disease should consult their personal ° doctor. (16) Fluoride - Some people who drink water containing fluoride in excess of the MCL over many years could get bone disease, including pain and tenderness of the bones. Children may get mottled teeth. (17)Lead-Infants and children who drink water containing lead in excess of the action level could experience delays in their physical or mental development. Children could show slight deficits in attention span and learning abilities. Adults who drink this water over many years could develop kidney problems or high blood pressure. (18)Mercury (inorganic) - Some people who drink water containing inorganic mercury well in excess of the MCL over many years could experience kidney damage. (20)Nitrite-Infants below the age of six months who drink water containing nitrite in excess of the MCL could become seriously ill and,if untreated,may die. Symptoms include shortness of breath and blue-baby syndrome. (21) Selenium- Selenium is an essential nutrient. However, some people who drink water containing selenium in excess of the MCL over many years could experience hair or fingernail losses,numbness in fingers or toes,or problems with their circulation. Volatile Organic Contaminants: (73)TTHMs [Total Trihalomethanes] - Some people who drink water containing trihalomethanes in excess of the MCL over many years may experience problems with their liver,kidneys, or central nervous systems,and may have an increased risk of getting cancer. Inadequately treated water may contain disease-causing organisms. These organisms include bacteria, viruses, and parasites, which can cause symptoms such as nausea, cramps, diarrhea, and associated headaches. k } As you can see by the table, our system had no violations. We are proud that your drinking water meets or exceeds all Federal and State requirements. We have learned through our monitoring and testing that some constituents have been detected. The EPA has determined that your water IS SAFE at these levels. 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 Environmental Protection Agency's Safe Drinking Water Hotline at 1-800-426-4791. MCL's are set at very stringent levels. To understand the possible health effects described for many regulated constituents, a person would have to drink 2 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. In our continuing efforts to maintain a safe and dependable water supply, it may be necessary to make improvements in your water system. The costs of these improvements may be reflected in the rate structure. Rate adjustments may be necessary in order to address these improvements. Page 6 t Thank you for allowing us to continue providing your family with clean, quality water this year. In order to maintain a safe and dependable water supply we sometimes need to make improvements that will benefit all of X our customers. These improvements are sometimes reflected as rate structure adjustments. Thank you for understanding. E 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 microbiological contaminants are available from the Safe Drinking Water Hotline (800-426-4791). Please call our office if you have questions. 634-1853 Gary Kimball Water & Waste Water Superintendent i } 1 k, Page 7 e: