(See attached file: Chapter-14.pdf)(See attached file: Chapter-14.docx)
SECTION | PAGE |
| 14-001 SCOPE AND AUTHORITY | 1 |
| 14-002 DEFINITIONS | 1 |
| 14-003 DATES REPORTS DUE | 1 |
| 14-004 CONTENT OF THE REPORTS | 2 |
| 14-005 REQUIRED ADDITIONAL HEALTH INFORMATION | 12 |
| 14-006 REPORT DELIVERY AND RECORDKEEPING | 13 |
| 14-007 RETENTION | 15 |
| Appendix A | 16 |
|
14-01 SCOPE AND AUTHORITY: This chapter establishes the minimum requirements for the content of annual reports that community water systems must deliver to their customers. These reports must contain information on the quality of the water delivered by the systems and characterize the risks (if any) from exposure to contaminants detected in the drinking water in an accurate and understandable manner. The authority is found in Neb. Rev. Stat. §§ 71-5301 to 71-5313.
14-02 DEFINITIONS: For this chapter:
Code of Federal Regulations (CFR) means the Code of Federal Regulations as it existed on the effective date of these regulations, and any CFR citations mentioned in these regulations are hereby incorporated by reference. Copies of the CFR as it existed on the effective date of these regulations can be obtained on the DHHS website at http://dhhs.ne.gov/publichealth/Pages/enh_pwsindex.aspx or by requesting a copy via email from the Department at: DHHS.drinkingwater@nebraska.gov or by calling 402-471-2541.
Customers means billing units or service connections to which water is delivered by a community water system.
Detected means at or above the levels prescribed by 179 NAC 3-005.01 item 4.a for inorganic contaminants; at or above the levels prescribed by 179 NAC 3-007.02G for the contaminants listed in 179 NAC 2-002.04B1; at or above the level prescribed by 179 NAC 3-007.03 item 17 for the contaminants listed in 179 NAC 2-002.04B2; at or above the levels prescribed by 179 NAC 16-004.02B item 4 for the contaminants or contaminant groups listed in 179 NAC 2-002.04E1, and at or above the levels prescribed by 179 NAC 3-008.01B for radioactive contaminants.
14-03 DATES REPORTS DUE
14-003.01 Existing Systems: Each existing community water system must deliver its first report by October 19, 1999, its second report by July 1, 2000, and subsequent reports by July 1 annually thereafter.
14-003.02 New Systems: A new community water system must deliver its first report by July 1 of the year after its first full calendar year in operation and annually thereafter.
14-003.03 Systems That Sell Water to Consecutive Systems: A community water system that sells water to another community water system must deliver the applicable information required in 179 NAC 14 to the buyer system:
1. No later than April 19, 1999, by April 1, 2000, and by April 1 annually thereafter or
2. On a date mutually agreed upon by the seller and the purchaser, and specifically included in a contract between the parties.
14-04 CONTENT OF THE REPORTS
14-004.01 Each community water system must provide to its customers an annual report that contains the information specified in 179 NAC 14-004 and 14-005.
14-004.02 Information on the source of the water delivered:
14-004.02A Each report must identify the source(s) of the water delivered by the community water system by providing information on:
1. The type of the water: e.g., surface water, ground water; and2. The commonly used name (if any) and location of the body (or bodies) of water.
14-004.02B If a source water assessment has been completed, the report must notify consumers of the availability of this information and the means to obtain it. Systems are encouraged to highlight in the report significant sources of contamination in the source water area if they have readily available information. When a source water assessment has been completed, the report must include a brief summary of the system’s susceptibility to potential sources of contamination, using language provided by the Department or written by the system.
14-004.03 Definitions
14-004.03A Each report must include the following definitions:
1. Maximum Contaminant Level Goal (MCLG) means 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.
2. Maximum Contaminant Level (MCL) means 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.
14-004.03B A community water system operating under a variance or an exemption must include the following definition: Variances and Exemptions means state permission not to meet an MCL or a treatment technique under certain conditions.
14-004.03C A report which contains data on contaminants that the Department regulates using any of the following terms must include the applicable definitions:
1. Treatment Technique means a required process intended to reduce the level of a contaminant in drinking water.
2. Action Level means the concentration of a contaminant which, if exceeded, triggers treatment or other requirements which a water system must follow.
3. Maximum residual disinfectant level goal or MRDLG: The level of a drinking water disinfectant below which there is no known or expected risk to health. MRDLGs do not reflect the benefits of the use of disinfectants to control microbial contaminants.
4. Maximum residual disinfectant level or MRDL: The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.
14.04.03 D A report that contains information regarding a Level 1 or Level 2 Assessment required under 179 NAC 26 must include the applicable definitions:
1. Level 1 Assessment: A Level 1 assessment is a study of the water system to identify potential problems and determine (if possible) why total coliform bacteria have been found in our water system.
2. Level 2 Assessment: A Level 2 assessment is a very detailed study of the water system to identify potential problems and determine (if possible) why an E. coli MCL violation has occurred and/or why total coliform bacteria have been found in our water system on multiple occasions.
14-004.04 Information on Detected Contaminants
14-004.04A 179 NAC 14-004.04A specifies the requirements for information to be included in each report for contaminants subject to mandatory monitoring (except Cryptosporidium). It applies to:
1. Contaminants subject to an MCL, action level, maximum residual disinfectant level, or treatment technique (regulated contaminants); and
2. Contaminants for which monitoring is required by 40 CFR 141.40.
14-004.04B The data relating to these contaminants must be displayed in one table or in several adjacent tables. Any additional monitoring results which a community water system chooses to include in its report must be displayed separately.
14-004.04C The data must be derived from data collected to comply with state monitoring and analytical requirements during calendar year 1998 for the first report and subsequent calendar years thereafter except that where a system is allowed to monitor for regulated contaminants less often than once a year, the table(s) must include the date and results of the most recent sampling and the report must include a brief statement indicating that the data presented in the report are for the most recent testing done in accordance with the regulations. No data older than five years need be included.
14-004.04D For detected regulated contaminants (listed in Appendix A to this chapter), the table(s) must contain:
1. The MCL for that contaminant expressed as a number equal to or greater than 1.0 (as provided in Appendix A to 179 NAC 14).
2. The MCLG for that contaminant expressed in the same units as the MCL.
3. If there is no MCL for a detected contaminant, the table must indicate that there is a treatment technique, or specify the action level, applicable to that contaminant, and the report must include the definitions for treatment technique and/or action level, as appropriate, specified in 179 NAC 14- 004.03C.
4. For contaminants subject to an MCL, except turbidity and total coliforms, total coliform, fecal coliform and E. coli, the highest contaminant level used to determine compliance with a drinking water standard and the range of detected levels, as follows: (Note that when rounding of results to determine compliance with 7the MCL is allowed by the regulations, rounding should be done prior to multiplying the results by the factor listed in Appendix A of 179 NAC 14).
a. When compliance with the MCL is determined annually or less frequently, use the highest detected level at any sampling point and the range of detected levels expressed in the same units as the MCL.
b. When compliance with the MCL is determined by calculating a running annual average of all samples taken at a monitoring location, use the highest average of any of the monitoring locations and the range of all monitoring locations expressed in the same units as the MCL. For the MCLs for TTHMs and HAA5s in 179 NAC 2-002.04E, systems must include the highest locational running annual average for TTHMs and HAA5s and the range of individual
sample results for all monitoring locations expressed in the same units as the MCL. If more than one location exceeds the TTHM or HAA5 MCL, the system must include the locational running annual averages for all locations that exceed the MCL.
c. When compliance with the MCL is determined on a system-wide basis by calculating a running annual average of all samples at all monitoring locations, use the average and range of detection expressed in the same units as the MCL. When the system has individual sample results for an initial distribution system evaluation (IDSE), the system must include those results when determining the range of TTHM and HAA5 results to be reported in the annual consumer confidence report for the calendar year that the IDSE samples were taken.
5. For Turbidity
a. When it is reported pursuant to 40 CFR 141.13, use the highest average monthly value.
b. When it is reported pursuant to the requirements of 179 NAC 13- 004, use the highest monthly value. The report should include an explanation of the reasons for measuring turbidity.
c. When it is reported pursuant to 179 NAC 13-006 or 179 NAC 17- 005 or 179 NAC19-009.02: the highest single measurement and the lowest monthly percentage of samples meeting the turbidity limits specified in 179 NAC 13-006 or 179 NAC 17-005 or 179 NAC 19-009.02 for the filtration technology being used. The report should include an explanation of the reasons for measuring turbidity.
6. For Lead and Copper, use the 90th percentile value of the most recent round of sampling and the number of sampling sites exceeding the action level.
7. For Total Coliform analytical results through March 31, 2016:
a. Use the highest monthly number of positive samples for systems collecting fewer than 40 samples per month, or
b. Use the highest monthly percentage of positive samples for systems collecting at least 40 samples per month.
8. For Fecal Coliform and E. coli through March 31, 2016: The total number of positive samples;
9. Likely Source: Include the likely source(s) of detected contaminants to the best of the operator’s knowledge. Specific information regarding contaminants may be available in sanitary surveys and source water assessments, and should be used when available to the operator. If the operator lacks specific information on the likely source, the report must include one or more of the typical sources for that contaminant listed in Appendix A to 179 NAC 14 that is most applicable to the system.
10. For E. coli analytical results under 179 NAC 26: The total number of positive samples.
14-004.04E Multiple Independent Distribution Systems: If a community water system distributes water to its customers from multiple hydraulically independent distribution systems that are fed by different raw water sources, the table should contain a separate column for each service area and the report should identify each separate distribution system. Alternatively, systems could produce separate reports tailored to include data for each service area.
14-004.04F The table(s) must clearly identify any data indicating violations of MCLs, MRDLs, or treatment techniques, and the report must contain a clear and readily understandable explanation of the violation including: the length of the violation, the potential adverse health effects, and actions taken by the system to address the violation. To describe the potential health effects, the system must use the relevant language of Appendix A to 179 NAC 14.
14-004.04G For detected unregulated contaminants for which monitoring is required (except Cryptosporidium), the table(s) must contain the average and range at which the contaminant was detected. The report may include a brief explanation of the reasons for monitoring for unregulated contaminants.
14-004.05 Information on Cryptosporidium, radon, and other contaminants:
14-004.05A If the system has performed any monitoring for Cryptosporidium which indicates that Cryptosporidium may be present in the source water or the finished water, the report must include:
1. A summary of the results of the monitoring, and
2. An explanation of the significance of the results.
14-004.05B If the system has performed any monitoring for radon which indicates that radon may be present in the finished water, the report must include:
1. The results of the monitoring, and
2. An explanation of the significance of the results.
14-004.06 Compliance with Drinking Water Standards: In addition to the requirements of 179 NAC 14-004.04F, the report must note any violation that occurred during the year covered by the report of a requirement listed below, and include a clear and readily understandable explanation of the violation, any potential adverse health effects, and the steps the system has taken to correct the violation.
1. Monitoring and reporting of compliance data;
2. Filtration and disinfection prescribed by 179 NAC 13, Surface Water Treatment (for surface water and ground water under the influence of surface water systems). For systems which have failed to install adequate filtration or disinfection equipment or processes, or have had a failure of such equipment or processes which constitutes a violation, the report must include the following language as part of the explanation of potential adverse health effects: 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;
3. Lead and copper control requirements prescribed by 179 NAC 12. For systems that fail to take one or more actions prescribed by 179 NAC 12-003.02, 12-004, 12-005, 12-006, 12-007 the report must include the applicable language of Appendix A to 179 NAC 14 for lead, copper or both;
4. Treatment techniques for Acrylamide and Epichlorohydrin prescribed in 179 NAC 2-002.05. For systems that violate the requirements of 179 NAC 2-002.05, the report must include the relevant language from Appendix A to 179 NAC 14;
5. Recordkeeping of compliance data;
6. Special monitoring requirements for unregulated contaminants and sodium; and
7. Violation of the terms of a variance, an exemption, or an administrative or judicial order.
14-004.07 Variances and Exemptions: If a system is operating under the terms of a variance or an exemption issued under 179 NAC 6, the report must contain:
1. An explanation of the reasons for the variance or exemption,
2. The date on which the variance or exemption was issued,
3. A brief status report on the steps the system is taking to install treatment, find alternative sources of water, or otherwise comply with the terms and schedules of the variance or exemption, and
4. A notice of any opportunity for public input in the review, or renewal, of the variance or exemption.
14-004.08 Additional Information:
14-004.08A The report must contain a brief explanation regarding contaminants which may reasonably be expected to be found in drinking water including bottled water. This explanation may include the language of 179 NAC 14-004.08A items one to three or systems may use their own comparable language. The report also must include the language of 179 NAC 14-004.08A item 4.
1. The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs, and ground water wells. As water travels over the surface of the land or through the ground, it dissolves naturally- occurring minerals and, in some cases, radioactive material, and can pick up substances resulting from the presence of animals or from human activity.
2. Contaminants that may be present in source water include:
a. Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment plants, septic systems, agricultural livestock operations, and wildlife.
b. 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.
c. Pesticides and herbicides, which may come from a variety of sources such as agriculture, urban stormwater runoff, and residential uses.
d. Organic chemical contaminants, including synthetic and volatile organic chemicals, which are by-products of industrial processes and petroleum production, and can also come from gas stations, urban stormwater runoff, and septic systems.
e. Radioactive contaminants, which can be naturally-occurring or be the result of oil and gas production and mining activities.
3. In order to ensure that tap water is safe to drink, the Director prescribes regulations which limit the amount of certain contaminants in water provided by public water systems. FDA regulations establish limits for contaminants in bottled water which must provide the same protection for public health.
4. 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 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 (800-426-
4791) or the Department of Health and Human Services, Division of Public Health at 402-471-2541.
5. The systems may include such additional information as they deem necessary for public education consistent with, and not detracting from, the purpose of the report.
6. Systems required to comply with 179 NAC 8.
a. Any ground water system that receives notice from the Department of a significant deficiency or notice from a laboratory of a fecal indicator- positive ground water source sample that is not invalidated by the Department under 179 NAC 8-005.04 must inform its customers of any significant deficiency that is uncorrected at the time of the next report or of any fecal indicator-positive ground water source sample in the next report. The system must continue to inform the public annually until the Department determines that particular significant deficiency is corrected or the fecal contamination in the ground water source is addressed under 179 NAC 8-006.01. Each report must include the following elements.
(1) The nature of the particular significant deficiency or the source of the fecal contamination (if the source is known) and the date the significant deficiency was identified by the Department or the dates of the fecal indicator-positive ground water source samples;
(2) If the fecal contamination in the ground water source has been addressed under 179 NAC 8-006.01 and the date of such action;
(3) For each significant deficiency or fecal contamination in the ground water source that has not been addressed under 179 NAC 8- 006.01, the Department-approved plan and schedule for correction, including interim measures, progress to date, and any interim measures completed; and
(4) If the system receives notice of a fecal indicator-positive ground water source sample that is not invalidated by the Department under 179 NAC 8-005.04, the potential health effects using the health effects language of Appendix A of 179 NAC 14.
b. If directed by the Department, a system with significant deficiencies that have been corrected before the next report is issued must inform its customers of the significant deficiency, how the deficiency was corrected, and the date of correction under 179 NAC 14-004.08A item 6.a.
7. Systems required to comply with 179 NAC 26.
a. Any system required to comply with a Level 1 assessment requirement or a Level 2 assessment requirement that is not due to an E. coli MCL violation must include in the report the text found in 179 NAC 14-004.08 items 7.a.(1) to 7.a.(3) as appropriate, filling in the blanks accordingly and the text found in 179 NAC 14-004.08 items 7.a.(4)(a) and 7.a.(4)(b) if appropriate.
(1) 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.
(2) During the past year we were required to conduct [INSERT NUMBER OF LEVEL 1 ASSESSMENTS] Level 1 assessment(s). [INSERT NUMBER OF LEVEL 1 ASSESSMENTS] Level 1 assessment(s) were completed. In addition, we were required to take [INSERT NUMBER OF CORRECTIVE ACTIONS] of corrective actions and we completed [INSERT NUMBER OF CORRECTIVE ACTIONS] of these actions.
(3) During the past year [INSERT NUMBER OF LEVEL 2 ASSESSMENTS] Level 2 assessments were required to be completed for our water system. [INSERT NUMBER OF LEVEL 2 ASSESSMENTS] Level 2 assessments were completed. In addition we were required to take [INSERT NUMBER OF CORRECTIVE ACTIONS] corrective actions and we completed [INSERT NUMBER OF CORRECTIVE ACTIONS] of these actions.
(4) Any system that has failed to complete all the required assessments or correct all identified sanitary defects, is in violation of the treatment technique requirement and must also include one or both of the following statements, as appropriate:
(a) During the past year we failed to conduct all of the required assessment(s).
(b) During the past year we failed to correct all identified defects that were found during the assessment.
b. Any system required to conduct a Level 2 assessment due to an E. coli
MCL violation must include in the report the text found in 179 NAC 14-
004.08 items 7.b.(1) and (2), filling in the blanks accordingly and the text found in 179 NAC 14-004.08 items 7.b.(3)(a) and (b), if appropriate.
(1) 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. We found E. Coli bacteria, indicating the need to look for potential problems in 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.
(2) We were required to complete a Level 2 assessment because we found E. Coli in our water system. In addition, we were required to take [INSERT NUMBER OF CORRECTIVE ACTIONS] corrective actions and we completed [INSERT NUMBER OF CORRECTIVE ACTIONS] of these actions.
(3) Any system that has failed to complete the required assessment or correct all identified sanitary defects, is in violation of the treatment technique requirement and must also include one or both of the following statements, as appropriate:
(a) We failed to conduct the required assessment.
(b) We failed to correct all sanitary defects that were identified during the assessment that we conducted.
c. If a system detects E. coli and has violated the E. coli MCL, in addition to completing the table as required in 179 NAC 14-004.04D, the system must include one or more of the following statements to describe any noncompliance, as applicable:
(1) We had an E. coli-positive repeat sample following a total coliform- positive routine sample.
(2) We had a total coliform-positive repeat sample following an E. coli-positive routine sample.
(3) We failed to take all required repeat samples following an E. coli- positive routine sample.
(4) We failed to test for E. coli when (a) repeat sample(s) tested positive for total coliform. d. If a system detects E. coli and has not violated the E. coli MCL, in addition to completing the table as required in 179 NAC 14-004.04D, the system may include a statement that explains that although they have detectedE. coli, they are not in violation of the E. coli MCL.
14-004.08B Phone Number: The report must include the telephone number of the owner, operator, or designee of the community water system as a source of additional information concerning the report.
14-004.08C Other Languages: In communities that have a population with 20% or more non-English speaking residents, the report must contain information in the appropriate language(s) regarding the importance of the report or contain a telephone number or address where such residents may contact the system to obtain a translated copy of the report or assistance in the appropriate language.
14-004.08D Meetings: The report must include information (e.g., time and place of regularly scheduled board meetings) about opportunities for public participation in decisions that may affect the quality of the water.
14-004.08E The systems may include such additional information as they deem necessary for public education consistent with, and not detracting from, the purpose of the report.
14-05 REQUIRED ADDITIONAL HEALTH INFORMATION
14-005.01 All reports must prominently display the following language: Some people may be more vulnerable to contaminants in drinking water than the general population. Immuno- compromised persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/AIDS or other immune system disorders, some elderly, and infants can be particularly at risk from infections. These people should seek advice about drinking water from their health care providers. EPA/CDC guidelines on appropriate means to lessen the risk of infection by Cryptosporidium and other microbial contaminants are available from the Safe Drinking Water Hotline (800-426-4791) or the Department of Health and Human Services, Division of Public Health at 402-471- 2541.
14-005.02 A system that detects arsenic above 0.005 mg/L and up to and including 0.010 mg/L:
1. Must include in its report a short informational statement about arsenic, using language such as: While your drinking water meets EPA’s standard for arsenic, it does contain low levels of arsenic. EPA’s standard balances the current understanding of arsenic’s possible health effects against the costs of removing arsenic from drinking water. EPA continues to research the health effects of low levels of arsenic, which is a mineral known to cause cancer in humans at high concentrations and is linked to other health effects such as skin damage and circulatory problems.
2. May write its own educational statement, but only in consultation with the Department.
14-005.03 A system which detects nitrate at levels above 5 mg/L, but below the MCL:
1. Must include a short informational statement about the impacts of nitrate on children using language such as: Nitrate in drinking water at levels above 10 ppm is a health risk for infants of less than six months of age. High nitrate levels in drinking water can cause blue baby syndrome. Nitrate levels may rise quickly for short periods of time because of rainfall or agricultural activity. If you are caring for an infant, you should ask advice from your health care provider.
2. May write its own educational statement in consultation with the Department.
14-005.04 Every report must include the following lead-specific information:
1. A short informational statement about lead in drinking water and its effects on children. The statement must include the following information: 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. [NAME OF UTILITY] 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.
2. A system may write its own educational statement in consultation with the Department. 14-005.05 Community Water Systems that detect TTHMs above 0.080 mg/L, but below the MCL in 179 NAC 2-002.04E1, as an annual average, monitored and calculated under the provisions of 179 NAC 16-005, must include health effects language for TTHMs prescribed by Appendix A to 179 NAC 14.
14-005.06 A community water system that detects arsenic above 0.010 mg/L and up to and including 0.05 mg/L must include the arsenic health effects language prescribed by Appendix A to 179 NAC 14.
14-06 REPORT DELIVERY AND RECORDKEEPING
14-006.01 Except as provided in 179 NAC 14-006.07, each community water system must mail or otherwise directly deliver one copy of the report to each customer.
14-006.02 The system must make a good faith effort to reach consumers who do not get water bills, using means recommended by the Department. An adequate good faith effort must be tailored to the consumers who are served by the system but are not bill-paying customers, such as renters or workers. A good faith effort to reach consumers would
include a mix of methods appropriate to the particular system such as: Posting the reports on the internet; mailing to postal patrons in metropolitan areas; advertising the availability of the report in the news media; publication in a local newspaper; posting in public places such as cafeterias or lunch rooms of public buildings; delivery of multiple copies for distribution by single-biller customers such as apartment buildings or large private employers; delivery to community organizations.
14-006.03 No later than the date the system is required to distribute the report to its customers, each community water system must mail a copy of the report to the primacy agency, followed within three months by a certification that the report has been distributed to customers, and that the information is correct and consistent with the compliance monitoring data previously submitted to the Department.
14-006.04 No later than the date the system is required to distribute the report to its customers, each community water system must deliver the report to any other agency or clearinghouse identified by the Department.
14-006.05 Each community water system must make its reports available to the public upon request.
14-006.06 Each community water system serving 100,000 or more individuals must post its current year’s report to a publicly-accessible site on the internet.
14-006.07 The Governor or his/her designee can waive the requirement of 179 NAC 14-
06.01 for community water systems serving fewer than 10,000 individuals.
14-006.07A Those systems receiving waivers must:
1. Publish the reports in one or more local newspapers serving the area in which the system is located;
2. Inform the customers that the reports will not be mailed, either in the newspapers in which the reports are published or by other means approved by the Department, and
3. Make the reports available to the public upon request.
14-006.07B Systems Serving 500 or Fewer Individuals may forego the requirements of 179 NAC 14-006.07A, items 1 and 2 if they provide notice at least once per year to their customers by mail, door-to-door delivery or by posting in an appropriate location that the report is available upon request.
14-07 RETENTION: Any system subject to this chapter must retain copies of its consumer confidence report for no less than three years.
Contaminants (units) | Tradition-
al 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. |
|
Contaminants (units) | Tradition- al MCL in
mg/L | To convert for CCR,
multiply by | MCL in CCR
units | MCLG | Major sources in drinking water | Health effects language |
| 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. |
|
Contaminants (units) | Tradition- al MCL in
mg/L | To convert for CCR,
multiply by | MCL in CCR
units | MCLG | Major sources in drinking water | Health effects language |
| 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. |
|
Contaminants (units) | Tradition- al MCL in
mg/L | To convert for CCR,
multiply by | MCL in CCR
units | MCLG | Major sources in drinking water | Health effects language |
| 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. |
|
Contaminants (units) | Tradition- al MCL in
mg/L | To convert for CCR,
multiply by | MCL in CCR
units | MCLG | Major sources in drinking water | Health effects language |
| 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. |
|
Contaminants (units) | Tradition- al MCL in
mg/L | To convert for CCR,
multiply by | MCL in CCR
units | MCLG | Major sources in drinking water | Health effects language |
| 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. |
|
Contaminants (units) | Tradition- al MCL in
mg/L | To convert for CCR,
multiply by | MCL in CCR
units | MCLG | Major sources in drinking water | Health effects language |
| 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. |
|
Contaminants (units) | Tradition- al MCL in
mg/L | To convert for CCR,
multiply by | MCL in CCR
units | MCLG | Major sources in drinking water | Health effects language |
| 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. |
|
Contaminants (units) | Tradition- al MCL in
mg/L | To convert for CCR,
multiply by | MCL in CCR
units | MCLG | Major sources in drinking water | Health effects language |
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. |
|
Contaminants (units) | Tradition- al MCL in
mg/L | To convert for CCR,
multiply by | MCL in CCR
units | MCLG | Major sources in drinking water | Health effects language |
| 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. |
|
Contaminants (units) | Tradition- al MCL in
mg/L | To convert for CCR,
multiply by | MCL in CCR
units | MCLG | Major sources in drinking water | Health effects language |
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. |
|
Contaminants (units) | Tradition- al MCL in
mg/L | To convert for CCR,
multiply by | MCL in CCR
units | MCLG | Major sources in drinking water | Health effects language |
| 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. |
|
Contaminants (units) | Tradition- al MCL in
mg/L | To convert for CCR,
multiply by | MCL in CCR
units | MCLG | Major sources in drinking water | Health effects language |
| 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. |
|
Contaminants (units) | Tradition- al MCL in
mg/L | To convert for CCR,
multiply by | MCL in CCR
units | MCLG | Major sources in drinking water | Health effects language |
| 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. |
|
Contaminants (units) | Tradition- al MCL in
mg/L | To convert for CCR,
multiply by | MCL in CCR
units | MCLG | Major sources in drinking water | Health effects language |
| 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. |
|
Contaminants (units) | Tradition- al MCL in
mg/L | To convert for CCR,
multiply by | MCL in CCR
units | MCLG | Major sources in drinking water | Health effects language |
| 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