Nebraska Administrative Code › Topic - HEALTH AND HUMAN SERVICES SYSTEM › Title 179 - PUBLIC WATER SYSTEMS › Chapter 14 - CONSUMER CONFIDENCE REPORTS › Appendix A

Current through June 17, 2024
Contaminants (units)
Traditional MCL in mg/L
To convert
for CCR, multiply
								by
MCL in CCR units
MCLG
Major sources in drinking water
Health effects language
Microbiological contaminants:
Total Coliform Bacteria*.
MCL: (systems that collect >=40 samples/ month)
								5% of monthly samples are positive; (systems that collect <40 samples/
								month) 1 positive monthly sample
.....................
MCL: (systems that collect >=40 samples/month)
								5% of monthly samples are positive;
(Systems that collect <40 samples/ month) 1
								positive monthly sample
0 ..............
Naturally present in the environment.
Coliforms are bacteria that are naturally present
								in the environment and are used as an indicator that other,
								potentially-harmful, bacteria may be present. Coliforms were found in more
								samples than allowed and this was a warning of potential problems.
Total Coliform Bacteria**
TT
TT
N/A
Naturally present in the environment
Coliforms are bacteria that are naturally present
								in the environment and are used as an indicator that other, potentially
								harmful, waterborne pathogens may be present or that a potential pathway exists
								through which contamination may enter the drinking water distribution system.
								We found coliforms indicating the need to look for potential problems in the
								water treatment or distribution. When this occurs, we are required to conduct
								assessment(s) to identify problems and to correct any problems that were found
								during these assessments.
Fecal coliform and
E. coli
*
0 ................
.....................
0 ................
0 ..............
Human and animal fecal waste.
Fecal coliforms and
E. coli
are
								bacteria whose presence indicates that the water may be contaminated with human
								or animal wastes. Microbes in these wastes can cause short-term effects, such
								as diarrhea, cramps, nausea, headaches, or other symptoms. They may pose a
								special health risk for infants, young children, some of the elderly, and
								people with severely-compromised immune systems.
E. coli
**
Routine and repeat samples are total
								coliform-positive and either is E. coli-positive or system fails to take repeat
								samples following
E. coli
-positive routine sample or system
								fails to analyze total coliform-positive repeat sample for
E.
								coli
.
Routine and repeat samples are total
								coliform-positive and either is
E. coli
-positive or system
								fails to take repeat samples following
E. coli
-positive
								routine sample or system fails to analyze total coliform-positive repeat sample
								for
E. coli
.
0
Human and animal fecal waste.
E. coli
are bacteria whose
								presence indicates that the water may be contaminated with human or animal
								wastes. Human pathogens in these wastes can cause short-term effects, such as
								diarrhea, cramps, nausea, headaches, or other symptoms. They may pose a greater
								health risk for infants, young children, the elderly, and people with
								severely-compromised immune systems.
Fecal Indicators (enterococci or coliphage)
TT
......................
TT
N/A
Human and animal fecal waste.
Fecal indicators are microbes whose presence
								indicates that the water may be contaminated with human or animal wastes.
								Microbes in these wastes can cause short-term health effects, such as diarrhea,
								cramps, nausea, headaches, or other symptoms. They may pose a special health
								risk for infants, young children, some of the elderly, and people with severely
								compromised immune systems.
Total organic carbon (ppm)
TT ............
....................
TT .............
N/A ..........
Naturally present in the environment.
Total organic carbon (TOC) has no health effects.
								However, total organic carbon provides a medium for the formation of
								disinfection byproducts. These byproducts include trihalomethanes (THMs) and
								haloacetic acids (HAAs). Drinking water containing these byproducts in excess
								of the MCL may lead to adverse health effects, liver or kidney problems, or
								nervous system effects, and may lead to an increased risk of getting
								cancer.
Turbidity (NTU) ...................
TT .............
.....................
TT .............
N/A ..........
Soil runoff ...............
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.
Radioactive contaminants: Beta/photon emitters
								(mrem/yr)
4 mrem/yr .
....................
4 ................
0 ..........
Decay of natural and man-made deposits.
Certain minerals are radioactive and may emit forms
								of radiation known as photons and beta radiation. Some people who drink water
								containing beta particle and photon radioactivity in excess of the MCL over
								many years may have an increased risk of getting cancer.
Alpha emitters (pCi/L) ....
15 pCi/L ....
....................
15 .............
0 .........
Erosion of natural deposits.
Certain minerals are radioactive and may emit a
								form of radiation known as alpha radiation. Some people who drink water
								containing alpha emitters in excess of the MCL over many years may have an
								increased risk of getting cancer.
Combined radium (pCi/L)
5 pCi/L ......
.....................
5 ................
0 ..........
Erosion of natural deposits.
Some people who drink water containing radium-226
								or -228 in excess of the MCL over many years may have an increased risk of
								getting cancer.
Uranium (µg/L)
30 µg/L......
........................
30 ...............
0 ...............
Erosion of natural deposits.
Some people who drink water containing uranium in
								excess of the MCL over many years may have an increased risk of getting cancer
								and kidney toxicity.
Inorganic contaminants:
Antimony (ppb) .............
.006 ............
.
1000 ............
6 ...............
6 ..............
Discharge from petroleum refineries; fire
								retardants; ceramics; electronics; solder.
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.
Arsenic (ppb) ..............
.05 through 01/22/06
0.010 Effective 01/23/06 .....
1000 ...........
50 through 01/22/06
10 Effective 01/23/06 .....
N/A
through 01/22/06
0 Effective 01/23/06...
Erosion of natural deposits; Runoff from orchards;
								Runoff from glass and electronics production wastes.
Some people who drink water containing arsenic in
								excess of the MCL over many years could experience skin damage or problems with
								their circulatory system, and may have an increased risk of getting
								cancer.
Asbestos (MFL) ............
7 MFL ......
....................
7 ...............
7 ..............
Decay of asbestos cement water mains; Erosion of
								natural deposits.
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.
Barium (ppm) ...............
2 ................
.....................
2 ................
2 .............
Discharge of drilling wastes; Discharge from metal
								refineries; Erosion of natural deposits.
Some people who drink water containing barium in
								excess of the MCL over many years could experience an increase in their blood
								pressure.
Beryllium (ppb) .............
.004 ..........
1000 ...........
4 ................
4 ..............
Discharge from metal refineries and coal-burning
								factories; Discharge from electrical, aerospace, and defense industries.
Some people who drink water containing beryllium
								well in excess of the MCL over many years could develop intestinal
								lesions.
Bromate (ppb) ...............
0.010..........
1000 ...............
10 ..............
0 ..............
Byproduct of drinking water disinfection
Some people who drink water containing bromate in
								excess of the MCL over many years may have an increased risk of getting
								cancer.
Cadmium (ppb) .............
.005 ...........
1000 ...........
5 ...............
5 ..............
Corrosion of galvanized pipes; Erosion of natural
								deposits; Discharge from metal refineries; Runoff from waste batteries and
								paints.
Some people who drink water containing cadmium in
								excess of the MCL over many years could experience kidney damage.
Chloramines (ppm) ........
MRDL = 4
........................
MRDL = 4
MRDLG = 4
Water additive used to control microbes.
Some people who use water containing chloramines
								well in excess of the MRDL could experience irritating effects to their eyes
								and nose. Some people who drink water containing chloramines well in excess of
								the MRDL could experience stomach discomfort or anemia.
Chlorine (ppm) ..............
MRDL = 4
........................
MRDL = 4
MRDLG = 4
Water additive used to control microbes.
Some people who use water containing chlorine well
								in excess of the MRDL could experience irritating effects to their eyes and
								nose. Some people who drink water containing chlorine well in excess of the
								MRDL could experience stomach discomfort.
Chlorine dioxide (ppm) ..
MRDL = .8
1000 .............
MRDL = 800
MRDLG = 800
Water additive used to control microbes.
Some infants and young children who drink water
								containing chlorine dioxide in excess of the MRDL could experience nervous
								system effects. Similar effects may occur in fetuses of pregnant women who
								drink water containing chlorine dioxide in excess of the MCL. Some people may
								experience anemia.
Chlorite (ppm) ...............
1 ................
........................
1 ...............
0.8...........
Byproduct of drinking water disinfection.
Some infants and young children who drink water
								containing chlorite in excess of the MCL could experience nervous system
								effects. Similar effects may occur in fetuses of pregnant women who drink water
								containing chlorite in excess of the MCL. Some people may experience
								anemia.
Chromium (ppb) ............
.1 ..............
1000 ............
100 ............
100 ..........
Discharge from steel and pulp mills; Erosion of
								natural deposits.
Some people who use water containing chromium well
								in excess of the MCL over many years could experience allergic
								dermatitis.
Copper (ppm) .................
AL =
								1.3...
.....................
AL =
								1.3...
1.3..........
Corrosion of household plumbing systems; Erosion of
								natural deposits.
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.
Cyanide (ppb) ................
.2 ..............
1000 ...........
200 ...........
200 ..........
Discharge from steel/metal factories; Discharge
								from plastic and fertilizer factories.
Some people who drink water containing cyanide well
								in excess of the MCL over many years could experience nerve damage or problems
								with their thyroid.
Fluoride (ppm) ...............
4 ...............
.....................
4 ................
4 ..............
Erosion of natural deposits; Water additive that
								promotes strong teeth; Discharge from fertilizer and aluminum factories.
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. Fluoride in drinking water at half the MCL or more may
								cause mottling of children's teeth, usually in children less than nine years
								old. Mottling, also known as dental fluorosis, may include brown staining
								and/or pitting of the teeth, and occurs only in developing teeth before they
								erupt from the gums.
Lead (ppb) .....................
AL = .015
1000 ............
AL = 15 .....
0 ..............
Corrosion of household plumbing systems; Erosion of
								natural deposits.
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.
Mercury (inorganic) (ppb)
.002 ...........
1000 ............
2 ................
2 ..............
Erosion of natural deposits; Discharge from
								refineries and factories; Runoff from landfills; Runoff from cropland.
Some people who drink water containing inorganic
								mercury well in excess of the MCL over many years could experience kidney
								damage.
Nitrate (ppm) .................
10 .............
....................
10 ..............
10 ............
Runoff from fertilizer use; Leaching from septic
								tanks, sewage; Erosion of natural deposits.
Infants below the age of six months who drink water
								containing nitrate in excess of the MCL could become seriously ill and, if
								untreated, may die. Symptoms include shortness of breath and blue baby
								syndrome.
Nitrite (ppm) ..................
1 ................
.....................
1 ................
1 ..............
Runoff from fertilizer use; Leaching from septic
								tanks, sewage; Erosion of natural deposits.
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.
Selenium (ppb) .............
.05 ............
1000 ............
50 ..............
50 ............
Discharge from petroleum and metal refineries;
								Erosion of natural deposits; Discharge from mines.
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.
Thallium (ppb) ..............
.002 ...........
1000 ...........
2 ...............
0.5..........
Leaching from ore-processing sites; Discharge from
								electronics, glass, and drug factories.
Some people who drink water containing thallium in
								excess of the MCL over many years could experience hair loss, changes in their
								blood, or problems with their kidneys, intestines, or liver.
Synthetic organic contaminants including pesticides
								and herbicides: 2,4-D (ppb) ....................
.07 ............
1000 ...........
70 .............
70 ............
Runoff from herbicide used on row crops.
Some people who drink water containing the weed
								killer 2,4-D well in excess of the MCL over many years could experience
								problems with their kidneys, liver, or adrenal glands.
2,4,5-TP [Silvex] (ppb)
.05 .............
1000 ...............
50 ..............
50 ............
Residue of banned herbicide.
Some people who drink water containing silvex in
								excess of the MCL over many years could experience liver problems.
Acrylamide ....................
TT .............
....................
TT .............
0 .............
Added to water during sewage/wastewater
								treatment.
Some people who drink water containing high levels
								of acrylamide over a long period of time could have problems with their nervous
								system or blood, and may have an increased risk of getting cancer.
Alachlor (ppb) ..............
.002 ..........
1000 ............
2 ...............
0 ..............
Runoff from herbicide used on row crops.
Some people who drink water containing alachlor in
								excess of the MCL over many years could have problems with their eyes, liver,
								kidneys, or spleen, or experience anemia, and may have an increased risk of
								getting cancer.
Atrazine (ppb) ...............
.003 ...........
1000 ...........
3 ...............
3 ..............
Runoff from herbicide used on row crops.
Some people who drink water containing atrazine
								well in excess of the MCL over many years could experience problems with their
								cardiovascular system or reproductive difficulties.
Benzo(a)pyrene [PAH] (nanograms/L)
.0002 .........
1,000,000 ....
200 ............
0 ..............
Leaching from linings of water storage tanks and
								distribution lines.
Some people who drink water containing
								benzo(a)pyrene in excess of the MCL over many years may experience reproductive
								difficulties and may have an increased risk of getting cancer.
Carbofuran (ppb) ..........
.04 .............
1000 ............
40 ..............
40 ............
Leaching of soil fumigant used on rice and
								alfalfa.
Some people who drink water containing carbofuran
								in excess of the MCL over many years could experience problems with their
								blood, or nervous or reproductive systems.
Chlordane (ppb) ...........
.002 ...........
1000 ............
2 ...............
0 ..............
Residue of banned termiticide.
Some people who drink water containing chlordane in
								excess of the MCL over many years could experience problems with their liver or
								nervous system, and may have an increased risk of getting cancer.
Dalapon (ppb) ..............
.2 ..............
1000 ............
200 ............
200 ..........
Runoff from herbicide used on rights of way.
Some people who drink water containing dalapon well
								in excess of the MCL over many years could experience minor kidney
								changes.
Di(2-ethylhexyl) adipate (ppb)
.4 ...............
1000 ............
400 .............
400 ..........
Discharge from chemical factories.
Some people who drink water containing di
								(2-ethylhexyl) adipate well in excess of the MCL over many years could
								experience toxic effects such as weight loss, liver enlargement or possible
								reproductive difficulties.
Di(2-ethylhexyl) phthalate (ppb)
.006 ..........
1000 ...........
6 ...............
0 .............
Discharge from rubber and chemical
								factories.
Some people who drink water containing di
								(2-ethylhexyl) phthalate well in excess of the MCL over many years may have
								problems with their liver, or experience reproductive difficulties, and may
								have an increased risk of getting cancer.
Dibromochloropropane (ppt)
.0002 .........
1,000,000 ....
200 ............
0 .............
Runoff/leaching from soil fumigant used on
								soybeans, cotton, pineapples, and orchards.
Some people who drink water containing DBCP in
								excess of the MCL over many years could experience reproductive problems and
								may have an increased risk of getting cancer.
Dinoseb (ppb) ................
.007 ...........
1000 ............
7 ...............
7 ..............
Runoff from herbicide used on soybeans and
								vegetables.
Some people who drink water containing dinoseb well
								in excess of the MCL over many years could experience reproductive
								difficulties.
Diquat (ppb) ..................
.02 .............
1000 ..............
20 ..............
20 ............
Runoff from herbicide use.
Some people who drink water containing diquat in
								excess of the MCL over many years could get cataracts.
Dioxin [2,3,7,8-TCDD] (ppq)
.00000003
1,000,000,000
30 .............
0 .............
Emissions from waste incineration and other
								combustion; Discharge from chemical factories.
Some people who drink water containing dioxin in
								excess of the MCL over many years could experience reproductive difficulties
								and may have an increased risk of getting cancer.
Endothall (ppb) ..............
.1 ...............
1000 ...............
100 ............
100 ..........
Runoff from herbicide use.
Some people who drink water containing endothall in
								excess of the MCL over many years could experience problems with their stomach
								or intestines.
Endrin (ppb) .................
.002 ..........
1000 ..............
2 ................
2 ..............
Residue of banned insecticide.
Some people who drink water containing endrin in
								excess of the MCL over many years could experience liver problems.
Epichlorohydrin ............
TT .............
.......................
TT .............
0 ..............
Discharge from industrial chemical factories; An
								impurity of some water treatment chemicals
Some people who drink water containing high levels
								of epichlorohydrin over a long period of time could experience stomach
								problems, and may have an increased risk of getting cancer.
Ethylene dibromide (ppt)
.00005 .....
1,000,000 ......
50 .............
0 ..............
Discharge from petroleum refineries.
Some people who drink water containing ethylene
								dibromide in excess of the MCL over many years could experience problems with
								their liver, stomach, reproductive system, or kidneys, and may have an
								increased risk of getting cancer.
Glyphosate (ppb) ..........
.7 .............
1000 ..............
700 ...........
700 .........
Runoff from herbicide use.
Some people who drink water containing glyphosate
								in excess of the MCL over many years could experience problems with their
								kidneys or reproductive difficulties.
Heptachlor (ppt) ...........
.0004 ........
1,000,000 .......
400 ............
0 ..............
Residue of banned pesticide.
Some people who drink water containing heptachlor
								in excess of the MCL over many years could experience liver damage and may have
								an increased risk of getting cancer.
Heptachlor epoxide (ppt)
.0002 ........
1,000,000 .......
200 ...........
0 .............
Breakdown of heptachlor.
Some people who drink water containing heptachlor
								epoxide in excess of the MCL over many years could experience liver damage, and
								may have an increased risk of getting cancer.
Hexachlorobenzene (ppb)
.001 ........
1000 ..............
1 ................
0 ..............
Discharge from metal refineries and agricultural
								chemical factories.
Some people who drink water containing
								hexachlorobenzene in excess of the MCL over many years could experience
								problems with their liver or kidneys, or adverse reproductive effects, and may
								have an increased risk of getting cancer.
Hexachlorocyclopentadiene (ppb)
.05 .............
1000 ...............
50 .............
50 ............
Discharge from chemical factories.
Some people who drink water containing
								hexachlorocyclopentadiene well in excess of the MCL over many years could
								experience problems with their kidneys or stomach.
Lindane (ppt) ................
.0002 ........
1,000,000 .......
200 ............
200 .........
Runoff/leaching from insecticide used on cattle,
								lumber, gardens.
Some people who drink water containing lindane in
								excess of the MCL over many years could experience problems with their kidneys
								or liver.
Methoxychlor (ppb) .......
.04 .............
1000 ...............
40 .............
40 ...........
Runoff/leaching from insecticide used on fruits,
								vegetables, alfalfa, livestock.
Some people who drink water containing methoxychlor
								in excess of the MCL over many years could experience reproductive
								difficulties.
Oxamyl [Vydate] (ppb) ..
.2 ..............
1000 ...............
200 ............
200 ..........
Runoff/leaching from insecticide used on apples,
								potatoes and tomatoes
Some people who drink water containing oxamyl in
								excess of the MCL over many years could experience slight nervous system
								effects.
PCBs [Polychlorinated biphenyls] (ppt)
.0005 ........
1,000,000 ......
500 ...........
0 ..............
Runoff from landfills; Discharge of waste
								chemicals.
Some people who drink water containing PCBs in
								excess of the MCL over many years could experience changes in their skin,
								problems with their thymus gland, immune deficiencies, or reproductive or
								nervous system difficulties, and may have an increased risk of getting
								cancer.
Pentachlorophenol (ppb)
.001 ..........
1000 ...............
1 ...............
0 ..............
Discharge from wood preserving factories.
Some people who drink water containing
								pentachlorophenol in excess of the MCL over many years could experience
								problems with their liver or kidneys, and may have an increased risk of getting
								cancer.
Picloram (ppb) ..............
.5 ...............
1000 ..............
500 ............
500 ..........
Herbicide runoff ......
Some people who drink water containing picloram in
								excess of the MCL over many years could experience problems with their
								liver.
Simazine (ppb) .............
.004 ..........
1000 ...............
4 ...............
4 .............
Herbicide runoff .......
Some people who drink water containing simazine in
								excess of the MCL over many years could experience problems with their
								blood.
Toxaphene (ppb) ..........
.003 ...........
1000 ...............
3 ...............
0 ..............
Runoff/leaching from insecticide used on cotton and
								cattle.
Some people who drink water containing toxaphene in
								excess of the MCL over many years could have problems with their kidneys,
								liver, or thyroid, and may have an increased risk of getting cancer.
Volatile organic contaminants:
Benzene (ppb) ..............
.005 ..........
1000 ..............
5 ...............
0 ..............
Discharge from factories; Leaching from gas storage
								tanks and landfills.
Some people who drink water containing benzene in
								excess of the MCL over many years could experience anemia or a decrease in
								blood platelets, and may have an increased risk of getting cancer.
Carbon tetrachloride (ppb)
.005 ...........
1000 ..............
5 ................
0 ..............
Discharge from chemical plants and other industrial
								activities.
Some people who drink water containing carbon
								tetrachloride in excess of the MCL over many years could experience problems
								with their liver and may have an increased risk of getting cancer.
Chlorobenzene (ppb) ....
.1 ..............
1000 ...............
100 ...........
100 ..........
Discharge from chemical and agricultural chemical
								factories.
Some people who drink water containing
								chlorobenzene in excess of the MCL over many years could experience problems
								with their liver or kidneys.
o-Dichlorobenzene (ppb)
.6 ..............
1000 ...............
600 ...........
600 ..........
Discharge from industrial chemical
								factories.
Some people who drink water containing
								o-dichlorobenzene well in excess of the MCL over many years could experience
								problems with their liver, kidneys, or circulatory systems.
p-Dichlorobenzene (ppb)
.075 ..........
100 .................
75 ..............
75 ............
Discharge from industrial chemical
								factories.
Some people who drink water containing
								p-dichlorobenzene in excess of the MCL over many years could experience anemia,
								damage to their liver, kidneys, or spleen, or changes in their blood.
1,2-Dichloroethane (ppb)
.005 ...........
1000 ...............
5 ................
0 ..............
Discharge from industrial chemical
								factories.
Some people who drink water containing
								1,2-dichloroethane in excess of the MCL over many years may have an increased
								risk of getting cancer.
1,1-Dichloroethylene (ppb)
.007 ...........
1000 ...............
7 ................
7 ..............
Discharge from industrial chemical
								factories.
Some people who drink water containing
								1,1-dichlorethylene in excess of the MCL over many years could experience
								problems with their liver.
cis-1,2-Dichloroethylene (ppb)
.07 .............
1000 ...............
70 ..............
70 ............
Discharge from industrial chemical
								factories.
Some people who drink water containing
								cis-1,2-dichloroethylene in excess of the MCL over many years could experience
								problems with their liver.
trans-1,2 -Dichloroethylene (ppb)
.1 ...............
1000 ...............
100 ............
100 ..........
Discharge from industrial chemical
								factories.
Some people who drink water containing
								trans-1,2-dichloroethylene well in excess of the MCL over many years could
								experience problems with their liver.
Dichloromethane (ppb)..
.005 ...........
1000 ...............
5 ................
0 ..............
Discharge from pharmaceutical and chemical
								factories.
Some people who drink water containing
								dichloromethane in excess of the MCL over many years could have liver problems
								and may have an increased risk of getting cancer.
1,2-Dichloropropane (ppb)
.005 ...........
1000 ...............
5 ................
0 ..............
Discharge from industrial chemical
								factories.
Some people who drink water containing
								1,2-dichloropropane in excess of the MCL over many years may have an increased
								risk of getting cancer.
Ethylbenzene (ppb) ......
.7 ...............
1000 ...............
700 ............
700 ..........
Discharge from petroleum refineries.
Some people who drink water containing ethylbenzene
								well in excess of the MCL over many years could experience problems with their
								liver or kidneys.
Haloacetic Acids (HAA) (ppb)
.060 ...........
1000 ...............
60 ..............
N/A ..........
Byproduct of drinking water disinfection.
Some people who drink water containing haloacetic
								acids in excess of the MCL over many years may have an increased risk of
								getting cancer.
Styrene (ppb) ................
.1 ...............
1000 ...............
100 ............
100 ..........
Discharge from rubber and plastic factories;
								Leaching from landfills.
Some people who drink water containing styrene well
								in excess of the MCL over many years could have problems with their liver,
								kidneys, or circulatory system.
Tetrachloroethylene (ppb)
.005 ...........
1000 ...............
5 ................
0 ..............
Discharge from factories and dry cleaners.
Some people who drink water containing
								tetrachloroethylene in excess of the MCL over many years could have problems
								with their liver, and may have an increased risk of getting cancer.
1,2,4-Trichlorobenzene (ppb)
.07 .............
1000 ...............
70 .............
70 ............
Discharge from textile-finishing factories.
Some people who drink water containing
								1,2,4-trichlorobenzene well in excess of the MCL over many years could
								experience changes in their adrenal glands.
1,1,1-Trichloroethane (ppb)
.2 ...............
1000 ...............
200 ............
200 ..........
Discharge from metal degreasing sites and other
								factories.
Some people who drink water containing
								1,1,1-trichloroethane in excess of the MCL over many years could experience
								problems with their liver, nervous system, or circulatory system.
1,1,2-Trichloroethane (ppb)
.005
1000 ...............
5 ................
3 ..............
Discharge from industrial chemical
								factories.
Some people who drink water containing
								1,1,2-trichloroethane well in excess of the MCL over many years could have
								problems with their liver, kidneys, or immune systems.
Trichloroethylene (ppb) ..
.005 ..........
1000 ...............
5 ...............
0 ..............
Discharge from metal degreasing sites and other
								factories.
Some people who drink water containing
								trichloroethylene in excess of the MCL over many years could experience
								problems with their liver and may have an increased risk of getting
								cancer.
TTHMs [Total trihalomethanes] (ppb)
0.10/.080 ..
1000 ..............
100/80 ......
N/A ..........
Byproduct of drinking water disinfection.
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.
Toluene (ppm) ..............
1 ...............
........................
1 ...............
1 ..............
Discharge from petroleum factories.
Some people who drink water containing toluene well
								in excess of the MCL over many years could have problems with their nervous
								system, kidneys, or liver.
Vinyl Chloride (ppb) .......
.002 ...........
1000 ...............
2 ................
0 ..............
Leaching from PVC piping; Discharge from plastics
								factories.
Some people who drink water containing vinyl
								chloride in excess of the MCL over many years may have an increased risk of
								getting cancer.
Xylenes (ppm) .............
10 ..............
........................
10 .............
10 ............
Discharge from petroleum factories; Discharge from
								chemical factories.
Some people who drink water containing xylenes in
								excess of the MCL over many years could experience damage to their nervous
								system.
* Through March 31, 2016.
** Beginning April 1, 2016.
Key:
AL = Action Level
MCL = Maximum Contaminant Level
MCLG = Maximum Contaminant Level Goal
MFL = million fibers per liter
MRDL = Maximum Residual Disinfectant Level
MRDLG = Maximum Residual Disinfectant Level Goal
mrem/year = millirems per year (a measure of radiation
				  absorbed by the body)
N/A = Not Applicable
NTU = Nephelometric Turbidity Units (a measure of water
				  clarity)
pCi/L = picocuries per liter (a measure of
				  radioactivity)
ppm = parts per million, or milligrams per liter
				  (mg/L)
ppb = parts per billion, or micrograms per liter
				  (µg/L)
ppt = parts per trillion, or nanograms per liter
ppq = parts per quadrillion, or picograms per liter
TT = Treatment Technique