6 PROPOSED ADMINISTRATIVE RULES

 

 

ORR # 2004-013

 

DEPARTMENT OF ENVIRONMENTAL QUALITY WATER DIVISION

SUPPLYING WATER TO THE PUBLIC

 

Filed with the Secretary of State on

These rules take effect 7 days after filing with the Secretary of State

 

(By authority conferred on the department of environmental quality by section 5 of 1976 PA 399, MCL 325.1005, and Executive Reorganization Order 1996-1, MCL 330.3101)

 

R 325.10401a, R 325.10405, R 325.10408b, and R 325.10414 of the Michigan Administrative Code are amended as follows:

 

PART 4. PUBLIC NOTIFICATION AND PUBLIC EDUCATION

 

R 325.10401a General public notification requirements.

Rule 401a. (1) Each supplier of a community water system, nontransient noncommunity water system, or transient noncommunity water system shall give notice for violations of the maximum contaminant level (MCL), maximum residual disinfection level (MRDL), treatment technique (TT), monitoring requirements, testing procedures in these rules, and for other situations, as listed in the following provisions:

(a)  Violations and other situations requiring public notice, including all of the following:

(i)      Failure to comply with an applicable maximum contaminant level (MCL) or maximum residual disinfectant level (MRDL).

(ii)    Failure to comply with a prescribed treatment technique (TT).

(iii)    Failure to perform water quality monitoring, as required by part 7 of these rules.

(iv)    Failure to comply with testing procedures as prescribed by part 6 of these rules.

(b)  Variance and exemptions under part 3 of these rules, including both of the following:

(i)    Operation under a variance or an exemption.

(ii)      Failure to comply with the requirements of a schedule that has been set under a variance or exemption.

(c)   Special public notices, including all of the following:

(i)    Occurrence of a waterborne disease outbreak or other waterborne emergency.

(ii)     Exceedance of the nitrate MCL by noncommunity water systems, where granted permission by the department.

(iii)    Fluoride level above 2 mg/l as specified in R 325.10408a.

(iv)    Availability of unregulated contaminant monitoring data.

(v)     Other violations and situations which are determined by the department to require a public notice under this part and which are not already listed in table 1 of this rule.

 

 

The tier assignment for each specific violation or situation requiring a public notice is identified in table 1 of this rule.

(2)     Public notice requirements are divided into 3 tiers to take into account the seriousness of the violation or situation and of the potential adverse health effects that may be involved. The public notice requirements for each violation or situation listed in subrule (1) of this rule are determined by the tier to which the violation or situation is assigned. The definition of each tier is provided in the following provisions:

(a)     Tier 1 public notice is required for violations and situations that have significant potential to have serious adverse effects on human health as a result of short-term exposure.

(b)     Tier 2 public notice is required for all other violations and situations that have potential to have serious adverse effects on human health.

(c)    Tier 3 public notice is required for all other violations and situations not included in tier 1 and tier 2. The tier assignment for each specific violation or situation is identified in table 1 of this rule.

(3)   Suppliers shall provide public notice to the following:

(a)     Each supplier shall provide public notice to persons served by the system as specified in this part. Suppliers that sell or otherwise provide drinking water to other public water systems, such as to consecutive systems, shall give public notice to the supplier of the consecutive system. The consecutive system shall provide public notice to the persons it serves.

(b)     If a public water system has a violation in a portion of the distribution system that is physically or hydraulically isolated from other parts of the distribution system, then the department will may grant permission, which shall be in writing, to the supplier to limit distribution of the public notice to only persons served by that portion of the system which is out of compliance. To be physically separated, the supplier shall show that the affected portion of the distribution system is separated from other parts of the distribution system with no interconnections. To be considered hydraulically separated, the supplier shall show that the design of the distribution system or the system operation, or both, created a situation where water in the affected portion is effectively isolated from the water in all other parts of the distribution system because of projected water flow patterns and water pressure zones.

(4)   The supplier, within 10 days of completing the public notification requirements under this part for the initial public notice and applicable repeat notices, shall submit to the department a certification that it fully complied with the public notification regulations. The supplier shall include with this certification a representative copy of each type of notice distributed, published, posted, and made available to the persons served by the system and to the media.

 

Table 1 Violations and other situations requiring public notice

Contaminant	MCL/MRDL/TT violations 1		Monitoring & testing procedure violations
	Tier        of public notice required	Citation	Tier        of public notice required	Citation
I. Violations of MCL, MRDL, treatment technique, monitoring and reporting, and testing procedure requirements:
A. Microbiological contaminants

 

Contaminant	MCL/MRDL/TT violations 1		Monitoring & testing procedure violations
	Tier        of public notice required	Citation	Tier        of public notice required	Citation
Total coliform	2	R 325.10602(a) and (b)	3	R 325.10704 R 325.10705 R 325.10706 R 325.10707 R 325.10707a R 325.10702(2) R 325.10707b(24)
Fecal coliform/E. coli	1	R 325.10602(c)	1, 3 2	R 325.10704(3) R 325.10707b(24)
Turbidity (for TT violations       resulting from         a         single exceedance                  of maximum allowable turbidity level)	2, 1 3	R 325.10611b	3	R 325.10605, R 325.10720(2)(a) and (b)
Violations, other than violations resulting from                            single exceedance of max. allowable turbidity level (TT)	2	R 325.10611, R 325.10611a,    and R 325.10611b	3	R 325.10605 R 325.10720(2)(c) and (d)
Violations                   of disinfection profiling and benchmarking	N/A	N/A	3	R 325.10722
Violations of filter backwash recycling provisions	2	R 325.10611c	3	R 325.1506(7)
B. Inorganic chemicals (IOCs)
Antimony	2	R 325.10604c(1)	3	R 325.10710(4)- and (5)
Arsenic	2	R 325.10604c(1)	3	R 325.10710(4)- and (5) R 325.605
Asbestos (fibers longer than 10 µm)	2	R 325.10604c(1)	3	R 325.10710(4), (6)
Barium	2	R 325.10604c(1)	3	R 325.10710(4)- and (5)
Beryllium	2	R 325.10604c(1)	3	R 325.10710(4)     - and (5)
Cadmium	2	R 325.10604c(1)	3	R 325.10710(4)     - and (5)

 

Contaminant	MCL/MRDL/TT violations 1		Monitoring & testing procedure violations
	Tier        of public notice required	Citation	Tier        of public notice required	Citation
Chromium (total)	2	R 325.10604c(1)	3	R 325.10710(4) and (5)	-
Cyanide (free)	2	R 325.10604c(1)	3	R 325.10710(4) and (5)	-
Fluoride	2	R 325.10604c(1)	3	R 325.10710(4) and (5)	-
Mercury (inorganic)	2	R 325.10604c(1)	3	R 325.10710(4) and (5)	-
Nitrate (as nitrogen)	1	R 325.10604c(1)	1, 3 4	R 325.10710(3),    - (4), (7), and (9)(b)
Nitrite (as nitrogen)	1	R 325.10604c(1)	1, 3 4	R 325.10710(3),    - (4), (8), and (9)(b)
Total nitrate and nitrite (as nitrogen)	1	R 325.10604c(1)	3	R 325.10710(4)
Selenium	2	R 325.10604c(1)	3	R 325.10710(4)     - and (5)
Thallium	2	R 325.10604c(1)	3	R 325.10710(4)     - and (5)
C. Lead and copper rule (action level for lead is 0.015 mg/l, for copper is 1.3 mg/l)
Lead  and  copper  rule (TT)	2	R 325.10604f(1)    – (5)                       and R 325.10410	3	R 325.10710a –to R 325.10710c and R 325.10605
D. Synthetic organic chemicals (SOCs)
2,4-D	2	R 325.10604d(1)	3	R 325.10717
2,4,5-TP (silvex)	2	R 325.10604d(1)	3	R 325.10717
Alachlor	2	R 325.10604d(1)	3	R 325.10717
Atrazine	2	R 325.10604d(1)	3	R 325.10717
Benzo(a)pyrene (PAHs)	2	R 325.10604d(1)	3	R 325.10717
Carbofuran	2	R 325.10604d(1)	3	R 325.10717
Chlordane	2	R 325.10604d(1)	3	R 325.10717
Dalapon	2	R 325.10604d(1)	3	R 325.10717
Di           (2-ethylhexyl) adipate	2	R 325.10604d(1)	3	R 325.10717
Di           (2-ethylhexyl) phthalate	2	R 325.10604d(1)	3	R 325.10717
Dibromochloropropane	2	R 325.10604d(1)	3	R 325.10717
Dinoseb	2	R 325.10604d(1)	3	R 325.10717
Dioxin              (2,3,7,8- TCDD)	2	R 325.10604d(1)	3	R 325.10717
Diquat	2	R 325.10604d(1)	3	R 325.10717

 

 

Contaminant	MCL/MRDL/TT violations 1		Monitoring & testing procedure violations
	Tier        of public notice required	Citation	Tier        of public notice required	Citation
Endothall	2	R 325.10604d(1)	3	R 325.10717
Endrin	2	R 325.10604d(1)	3	R 325.10717
Ethylene dibromide	2	R 325.10604d(1)	3	R 325.10717
Glyphosate	2	R 325.10604d(1)	3	R 325.10717
Heptachlor	2	R 325.10604d(1)	3	R 325.10717
Heptachlor epoxide	2	R 325.10604d(1)	3	R 325.10717
Hexachlorobenzene	2	R 325.10604d(1)	3	R 325.10717
Hexachlorocyclo- pentadiene	2	R 325.10604d(1)	3	R 325.10717
Lindane	2	R 325.10604d(1)	3	R 325.10717
Methoxychlor	2	R 325.10604d(1)	3	R 325.10717
Oxamyl (vydate)	2	R 325.10604d(1)	3	R 325.10717
Pentachlorophenol	2	R 325.10604d(1)	3	R 325.10717
Picloram	2	R 325.10604d(1)	3	R 325.10717
Polychlorinated biphenyls [PCBs]	2	R 325.10604d(1)	3	R 325.10717
Simazine	2	R 325.10604d(1)	3	R 325.10717
Toxaphene	2	R 325.10604d(1)	3	R 325.10717
E. Volatile organic chemicals (VOCs)
Benzene	2	R 325.10604b(1)	3	R 325.10716
Carbon tetrachloride	2	R 325.10604b(1)	3	R 325.10716
Chlorobenzene (monochloro-benzene)	2	R 325.10604b(1)	3	R 325.10716
O-dichlorobenzene	2	R 325.10604b(1)	3	R 325.10716
P-dichlorobenzene	2	R 325.10604b(1)	3	R 325.10716
1,2-dichloroethane	2	R 325.10604b(1)	3	R 325.10716
1,1-dichloroethylene	2	R 325.10604b(1)	3	R 325.10716
Cis-1,2- dichloroethylene	2	R 325.10604b(1)	3	R 325.10716
Trans-1,2- dichloroethylene	2	R 325.10604b(1)	3	R 325.10716
Dichloromethane	2	R 325.10604b(1)	3	R 325.10716
1,2-dichloropropane	2	R 325.10604b(1)	3	R 325.10716
1,4-dioxane	2	R 325.10604b(1)	3	R 325.10716
Ethylbenzene	2	R 325.10604b(1)	3	R 325.10716
Styrene	2	R 325.10604b(1)	3	R 325.10716
Tetrachloro-ethylene	2	R 325.10604b(1)	3	R 325.10716
Toluene	2	R 325.10604b(1)	3	R 325.10716
1,2,4-trichlorobenzene	2	R 325.10604b(1)	3	R 325.10716
1,1,1-trichloroethane	2	R 325.10604b(1)	3	R 325.10716
1,1,2-trichloroethane	2	R 325.10604b(1)	3	R 325.10716

 

Contaminant	MCL/MRDL/TT violations 1		Monitoring & testing procedure violations
	Tier        of public notice required	Citation	Tier        of public notice required	Citation
Trichloroethylene	2	R 325.10604b(1)	3	R 325.10716
Vinyl chloride	2	R 325.10604b(1)	3	R 325.10716
Xylenes (total)	2	R 325.10604b(1)	3	R 325.10716
F. Radioactive contaminants
Beta/photon emitters	2	R 325.10604 R 325.10603(2)(c)	3	R 325.10605,
				R 325.107265, R 325.1072830
				R 325.10729
Alpha  emitters  (gross alpha)	2	R 325.10603(b) R 325.10603(2)(b)	3	R 325.10605,
				R 325.10722,
				R 325.10725, R 325.10726
				R 325.10728
				R 325.10729
Combined radium (226 & 228)	2	R 325.10603(a) R 325.10603(2)(a)	3	R 325.10605,
				R 325.10722,
				R 325.10725 R 325.10726
				R 325.10728
				R 325.10729
Uranium (pCi/L)	2	R 325.10603(2)(d)	3	R 325.10605 R 325.10725 R 325.10726 R 325.10728 R 325.10729
G. Disinfection byproducts (DBPs), byproduct precursors, disinfectant residuals. Where disinfection is used in the treatment of drinking water, disinfectants combine with organic and inorganic matter present in water to form chemicals called disinfection byproducts (DBPs). The department sets standards for controlling the levels of disinfectants and DBPs in drinking water, including trihalomethanes (THMS) and haloacetic acids (HAAs).5
Total     trihalomethanes ([TTHMs])	2	R 325.10610 6 R 325.10610b(2)(a)	3	R 325.10719a    –to R 325.10719e(1) and (2)(a)
Haloacetic              acids (HAAs)	2	R 325.10610 R 325.10610b(2)(a)	3	R 325.10719e(1) and (2)(a)
Bromate	2	R 325.10610 R 325.10610b(2)(b)	3	R 325.10719e(1) and (2)(c)
Chloramine (MRDL)	2	R 325.10610a R 325.10610b(3)(a)	3	R 325.10719e(1) and (3)
Chlorine (MRDL)	2	R 325.10610a R 325.10610b(3)(a)	3	R 325.10719e(1) and (3)

 

 

Contaminant			MCL/MRDL/TT violations 1		Monitoring & testing procedure violations
			Tier        of public notice required	Citation	Tier        of public notice required	Citation
Chlorite			2	R 325.10610 R 325.10610b(2)(c)	3	R 325.10719e(1) and (2)(b)
Chlorine             dioxide (MRDL),  where   any 2 consecutive daily samples at entrance to distribution system only are above MRDL			2	R 325.10610a R 325.10610b(3)(b) (ii)	2 76, 3	R 325.10719e(1), (3)(b)(i) and (iii)
Chlorine             dioxide (MRDL),              where sample(s)                      in distribution system the next day are also above MRDL			1 87	R 325.10610a R 325.10610b(3)(b) (i)	1	R 325.10719e(1), (3)(b)(ii) and (iii)
Control         of        DBP precursors—TOC (TT)			2	R 325.10610b(4) R 325.10610c	3	R 325.10719e(1) and (4)
Bench  marking  and disinfection profiling			N/A	N/A	3	R 325.10722
Development               of monitoring plan			N/A	N/A	3	R 325.10719e(5)
H. Other treatment techniques
Acrylamide (TT)			2	R 325.10604e	N/A	N/A
Epichlorohydrin (TT)			2	R 325.10604e	N/A	N/A
II. Other monitoring:
Unregulated contaminants			N/A	N/A	3	R 325.10717b
Nickel			N/A	N/A	3	R 325.10710(4), (5), and (9)
III. Public notification for variances and exemptions:
Operation       under       a variance or exemption			3	R 325.10302 and R 325.10312	N/A	N/A
Violation of conditions of a variance or exemption			2	R 325.10302 and R 325.10312	N/A	N/A
IV. Other situations requiring public notification:
Fluoride 2 mg/l	level	above	3	R 325.10408a(1)	N/A	N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Contaminant	MCL/MRDL/TT violations 1		Monitoring & testing procedure violations
	Tier        of public notice required	Citation	Tier        of public notice required	Citation
Exceedance  of  nitrate MCL                         for noncommunity systems, as allowed by the department	1	R 325.10604c(63)	N/A	N/A
Availability                 of unregulated contaminant monitoring data	3	R 325.10407	N/A	N/A
Waterborne          disease outbreak	1	R 325.10734(4)	N/A	N/A
Other            waterborne emergencies and other situations                     as determined by the department	1 OR or 2               98 OR or 3	N/A	N/A	N/A

 

 

1 MCL - Maximum contaminant level, MRDL - maximum residual disinfectant level, TT - treatment technique.

 

2 Failure to test for fecal coliform or E. coli is a tier 1 violation if testing is not done after any repeat sample tests positive for coliform. All other total coliform monitoring and testing procedure violations are tier 3.

 

3 Systems with treatment technique violations involving a single exceedance of a maximum turbidity limit under R 325.10611b(1) are required to initiate consultation with the department within 24 hours after learning of the violation. Based on this consultation, the department may subsequently decide to elevate the violation to tier 1. If a system is unable to make contact with the department in the 24-hour period, the violation is automatically elevated to tier 1.

 

4 Failure to take a confirmation sample within 24 hours for nitrate or nitrite after an initial sample exceeds the MCL is a tier 1 violation. Other monitoring violations for nitrate are tier 3.

 

5 See R 325.10610, R 325.10610a, and R 325.10719e for disinfection byproduct MCLs, disinfectant MRDLs, and related monitoring requirements.

 

R 325.10610(1) for the MRDLs and effective dates.

 

 

R 325.10405 Content of the public notice.

Rule 405.  (1) When If a system has a violation or situation requiring public notification, then each public notice shall include all of the following elements:

(a)     A description of the violation or situation, including the contaminant or contaminants of concern, and, as applicable, the contaminant level or levels.

(b)    When the violation or situation occurred.

(c)     The potential adverse health effects from the violation or situation, including the standard language under subrule (4)(a) or (4)(b) of this rule, whichever is applicable.

(d)       The  population  at  risk,  including  subpopulations  particularly  vulnerable  if  exposed  to  the contaminant in their drinking water.

(e)    Whether If alternative water supplies should be used.

(f)    What actions consumers should take, including when they should seek medical help, if known.

(g)    What the supplier is doing to correct the violation or situation.

(h)    When the supplier expects to return to compliance or resolve the situation.

(i)    The name, business address, and phone number of the supplier or designee of the supplier as a source of additional information concerning the notice.

(j)    A statement to encourage the notice recipient to distribute the public notice to other persons served, using the standard language under subrule (4)(c) of this rule, where applicable.

(2)    All of the following elements shall be included in the public notice for public water systems operating under a variance or exemption:

(a)     If a public water system has been granted a variance or an exemption, then the public notice shall contain all of the following elements:

(i)    An explanation of the reasons for the variance or exemption.

(ii)    The date on which the variance or exemption was issued.

(iii)     A brief status report on the steps the supplier is taking to install treatment, find alternative sources of water, or otherwise comply with the terms and schedules of the variance or exemption.

(iv)    A notice of opportunities for public input in the review of the variance or exemption.

(b)     If a public water system violates the conditions of a variance or exemption, then the public notice shall contain the 10 elements listed in subrule (1) of this rule.

(3)   The public notice shall be presented as specified in this subrule.in the following manner:

(a)    Each public notice required by this part shall meet all of the following criteria:

(i)    Shall be displayed in a conspicuous way when printed or posted.

(ii)    Shall not contain overly technical language or very small print.

(iii)    Shall not be formatted in a way that defeats the purpose of the notice.

(iv)    Shall not contain language which nullifies the purpose of the notice.

(b)     In communities where more than 10% of the consumers are non-English speaking consumers, the public notice shall contain information in the appropriate language or languages regarding the importance of the notice or contain a telephone number or address where persons served may contact the supplier to obtain a translated copy of the notice or to request assistance in the appropriate language.

 

 

(4)   SThe suppliers shall include the following standard language in their public notice:

(a)     SThe suppliers shall include in each public notice the health effects language specified in table 1 of this rule corresponding to each MCL, MRDL, and treatment technique violation listed in table 1 of R 325.10401a, and for each violation of a condition of a variance or exemption.

(b)    SThe suppliers shall include the following language in their notice, including the language necessary to fill in the blanks, for all monitoring and testing procedure violations listed in table 1 of R 325.10401a: "We are required to monitor your drinking water for specific contaminants on a regular basis. Results of regular monitoring are an indicator of whether or not your drinking water meets health standards. During [compliance period], we 'did not monitor or test' or 'did not complete all monitoring or testing' for [contaminant or contaminants], and therefore cannot be sure of the quality of your drinking water during that time."

(c)     SThe suppliers shall include in their notice the following language, where applicable, to encourage the distribution of the public notice to all persons served:

"Please share this information with all the other people who drink this water, especially those who may not have received this notice directly (for example, people in apartments, nursing homes, schools, and businesses). You can do this by posting this notice in a public place or distributing copies by hand or mail.”

 

 

Table 1 Regulated contaminants Key

 

 

AL=Action level MCL=Maximum contaminant

mrem/year=Millirems per year (a measure of radiation absorbed by the body)

ppb=Parts per billion, or micrograms per liter (µg/l)

ppt=Parts per trillion, or nanograms

level                                                N/A=Not applicable

per liter

MCLG=Maximum contaminant level goal

ntu=Nephelometric turbidity units (a measure of water clarity) pci/l=Picocuries per liter (a measure of

ppq=Parts per quadrillion, or picograms per liter

mfl=Million fibers per liter MRDL=Maximum residual disinfectant level MRDLG=Maximum residual disinfectant level goal

radioactivity)                                                  TT=Treatment technique ppm=Parts per million, or milligrams per

liter (mg/l)

 

 

Contaminant in CCR units	Traditional MCL in mg/l, except where noted	To convert for CCR, multiply by	MCL in CCR units	MCLG in CCR units	Major sources in drinking water	Health effects language
Microbiological contaminants
Total coliform bacteria	MCL: For water systems analyzing 40 or more samples per month, not more than 5.0% of the monthly samples may be positive for total coliform. For systems analyzing fewer than 40 samples per month, not more than 1 sample per month may be positive for total coliform.			zero	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.

 

Contaminant in CCR units	Traditional MCL in mg/l, except where noted	To convert for CCR, multiply by	MCL in CCR units	MCLG in CCR units	Major sources in drinking water	Health effects language
Fecal coliform and E. coli	zero	No conversion necessary	zero	zero	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.
Turbidity (ntu)	TT*	No conversion necessary	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.
	* R 325.10611b sets turbidity standards for different types of systems.
Other microbiological contaminants
Giardia lamblia, viruses, heterotrophic plate count (HPC) bacteria, legionella, cryptosporidium	TT*	No conversion necessary	TT*	zero	Naturally present in the environment	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.
	* The treatment technique violations that involve turbidity exceedances may use health effects language for turbidity instead.
INORGANIC CONTAMINANTS Inorganic contaminants

 

Contaminant in CCR units	Traditional MCL in mg/l, except where noted	To convert for CCR, multiply by	MCL in CCR units	MCLG in CCR units	Major sources in drinking water	Health effects language
Antimony (ppb)	0.006	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)	0.05 0.010*	1000	50 10*	N/A 0*	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.
	* These values are effective January 23, 2006. Until then, the MCL is 0.05 mg/l and there is no MCLG.
Asbestos [fibers longer than 10 µm] (mfl)	7 mfl	No conversion necessary	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	No conversion necessary	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)	0.004	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.

 

Contaminant in CCR units	Traditional MCL in mg/l, except where noted	To convert for CCR, multiply by	MCL in CCR units	MCLG in CCR units	Major sources in drinking water	Health effects language
Cadmium (ppb)	0.005	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.
Chromium [total] (ppb)	0.1	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.
Cyanide [free] (ppb)	0.2	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	No conversion necessary	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 9 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.

 

Contaminant in CCR units	Traditional MCL in mg/l, except where noted	To convert for CCR, multiply by	MCL in CCR units	MCLG in CCR units	Major sources in drinking water	Health effects language
Mercury [inorganic] (ppb)	0.002	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 [as nitrogen] (ppm)	10	No conversion necessary	10	10	Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits	Infants below the age of 6 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 [as nitrogen] (ppm)	1	No conversion necessary	1	1	Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits	Infants below the age of 6 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.
Total nitrate and nitrite [as nitrogen] (ppm)	10	No conversion necessary	10	10	Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits	Infants below the age of 6 months who drink water containing nitrate and 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)	0.05	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.

 

Contaminant in CCR units	Traditional MCL in mg/l, except where noted	To convert for CCR, multiply by	MCL in CCR units	MCLG in CCR units	Major sources in drinking water	Health effects language
Thallium (ppb)	0.002	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.
Lead and copper rule
Lead (ppb)	AL=0.015	1000	AL=15 (TT)	zero	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. cChildren could show slight deficits in attention span and learning abilities. aAdults who drink this water over many years could develop kidney problems or high blood pressure.
Copper (ppm)	AL=1.3	No conversion necessary	AL=1. 3 (TT)	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.
Synthetic organic contaminants including pesticides and herbicides
2,4-D (ppb)	0.07	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)	0.05	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.

 

Contaminant in CCR units	Traditional MCL in mg/l, except where noted	To convert for CCR, multiply by	MCL in CCR units	MCLG in CCR units	Major sources in drinking water	Health effects language
Alachlor (ppb)	0.002	1000	2	zero	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)	0.003	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 [PAHs] (ppt)	0.0002	1,000,000	200	zero	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)	0.04	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)	0.002	1000	2	zero	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)	0.2	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)	0.4	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.

 

Contaminant in CCR units	Traditional MCL in mg/l, except where noted	To convert for CCR, multiply by	MCL in CCR units	MCLG in CCR units	Major sources in drinking water	Health effects language
Di(2-ethylhexyl) phthalate (ppb)	0.006	1000	6	zero	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.
Dibromochloroprop ane [DBCP] (ppt)	0.0002	1,000,000	200	zero	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 difficulties and may have an increased risk of getting cancer.
Dinoseb (ppb)	0.007	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.
Dioxin [2,3,7,8- TCDD] (ppq)	0.00000003	1,000,000,000	30	zero	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.
Diquat (ppb)	0.02	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.
Endothall (ppb)	0.1	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)	0.002	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.

 

Contaminant in CCR units	Traditional MCL in mg/l, except where noted	To convert for CCR, multiply by	MCL in CCR units	MCLG in CCR units	Major sources in drinking water	Health effects language
Ethylene dibromide (ppt)	0.00005	1,000,000	50	zero	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)	0.7	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)	0.0004	1,000,000	400	zero	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)	0.0002	1,000,000	200	zero	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)	0.001	1000	1	zero	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.
Hexachlorocyclope ntadiene (ppb)	0.05	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)	0.0002	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.

 

Contaminant in CCR units	Traditional MCL in mg/l, except where noted	To convert for CCR, multiply by	MCL in CCR units	MCLG in CCR units	Major sources in drinking water	Health effects language
Methoxychlor (ppb)	0.04	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)	0.2	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.
Pentachlorophenol (ppb)	0.001	1000	1	zero	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)	0.5	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.
Polychlorinated biphenyls [PCBs] (ppt)	0.0005	1,000,000	500	zero	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.
Simazine (ppb)	0.004	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.

 

Contaminant in CCR units	Traditional MCL in mg/l, except where noted	To convert for CCR, multiply by	MCL in CCR units	MCLG in CCR units	Major sources in drinking water	Health effects language
Toxaphene (ppb)	0.003	1000	3	zero	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)	0.005	1000	5	zero	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)	0.005	1000	5	zero	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)	0.1	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)	0.6	1000	600	600	Discharge from industrial chemical factories	Some people who drink water containing o- dichlorobenzene well in excess of the MclMCL over many years could experience problems with their liver, kidneys, or circulatory systems.
P-dichlorobenzene (ppb)	0.075	1000	75	75	Discharge from industrial chemical factories	Some people who drink water containing p- dichlorobenzene in excess of the MclMCL over many years could experience anemia, damage to their liver, kidneys, or spleen, or changes in their blood.

 

Contaminant in CCR units	Traditional MCL in mg/l, except where noted	To convert for CCR, multiply by	MCL in CCR units	MCLG in CCR units	Major sources in drinking water	Health effects language
1,2-dichloroethane (ppb)	0.005	1000	5	zero	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)	0.007	1000	7	7	Discharge from industrial chemical factories	Some people who drink water containing 1,1- dichloroethylene in excess of the MCL over many years could experience problems with their liver.
Cis-1,2- dichloroethylene (ppb)	0.07	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)	0.1	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)	0.005	1000	5	zero	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)	0.005	1000	5	zero	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.
1,4-dioxane (ppb)	0.035	1000	35	N/A	Discharge from industrial chemical factories	Some people who drink water containing 1,4-dioxane in excess of the MCL over many years may experience liver or kidney damage and may have an increased risk of cancer.

 

Contaminant in CCR units	Traditional MCL in mg/l, except where noted	To convert for CCR, multiply by	MCL in CCR units	MCLG in CCR units	Major sources in drinking water	Health effects language
Ethylbenzene (ppb)	0.7	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.
Styrene (ppb)	0.1	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.
Tetrachloro- ethylene (ppb)	0.005	1000	5	Zero	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.
Toluene (ppm)	1	No conversion necessary	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.
1,2,4- trichlorobenzene (ppb)	0.07	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)	0.2	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)	0.005	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.

 

Contaminant in CCR units	Traditional MCL in mg/l, except where noted	To convert for CCR, multiply by	MCL in CCR units	MCLG in CCR units	Major sources in drinking water	Health effects language
Trichloroethylene (ppb)	0.005	1000	5	zero	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.
Vinyl chloride (ppb)	0.002	1000	2	zero	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 [total] (ppm)	10	No conversion necessary	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.
Radioactive contaminants
Beta/photon emitters (mrem/yr)	4 mrem/yr	No conversion necessary	4	zero	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 [gross alpha] (pci/l)	15 pCi/L	No conversion necessary	15	zero	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 [226 & 228] (pci/l)	5 pCi/L	No conversion necessary	5	zero	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.

Contaminant in CCR units	Traditional MCL in mg/l, except where noted	To convert for CCR, multiply by	MCL in CCR units	MCLG in CCR units	Major sources in drinking water	Health effects language
Uranium (pCi/L)	30 ug/L	No conversion necessary	30	Zero	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.
Disinfection byproducts (DBPs), byproduct precursors, and disinfectant residuals: where disinfection is used in the treatment of drinking water, disinfectants combine with organic and inorganic matter present in water to form chemicals called disinfection byproducts   (DBPs). The department sets standards for controlling the levels of disinfectants and DBPs in drinking water, including trihalomethanes  (THMs) and haloacetic acids (HAAs). See R 325.10610, R 325.10610a, and R 325.10719e for disinfection byproduct MCLs,  disinfectant MRDLs, and related monitoring requirements.
Total trihalomethanes [TTHMs] (ppb)	0.10/ 0.080*	1000	100/80 *	N/A	By-product of drinking water chlorination 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 system, and may have an increased risk of getting cancer.
	* The MCL for total trihalomethanes is the sum of the concentrations of the individual trihalomethanes. Different MCLs for TTHMs apply to different types of systems. See the footnote in R 325.10610(1).
Haloacetic acids (HAAs) (ppb)	0.060*	1000	60*	N/A	By-product 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.
	* The MCL for haloacetic acids is the sum of the concentrations of the individual haloacetic acids.
Bromate (ppb)	0.010	1000	10	zero	By-product of drinking water chlorination	Some people who drink water containing bromate in excess of the MCL over many years
					disinfection	may have an increased risk of getting cancer.
Chloramines (ppm)	MRDL = 4	No conversion necessary	MRDL = 4	MRDL G = 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.

 

Contaminant in CCR units	Traditional MCL in mg/l, except where noted	To convert for CCR, multiply by	MCL in CCR units	MCLG in CCR units	Major sources in drinking water	Health effects language
Chlorine (ppm)	MRDL = 4	No conversion necessary	MRDL = 4	MRDL G = 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.
Chlorite (ppm)	1	No conversion necessary	1	0.8	By-product of drinking water chlorination	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
					disinfection	pregnant women who drink water containing chlorite in excess of the MCL. Some people may experience anemia.
Chlorine dioxide (ppb)	MRDL = 0.8	1000	MRDL = 800	MRDL G = 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 MRDL. Some people may experience anemia.
	Add the following only to public notification where any 2 consecutive daily samples taken at the entrance to the distribution system are above the MRDL: "The chlorine dioxide violations reported today are the result of exceedances at the treatment facility only, not within the distribution system which delivers water to consumers. Continued compliance with chlorine dioxide levels within the distribution system minimizes the potential risk of these violations to consumers."   Add the following only to public notification where one or more distribution system samples are above the MRDL: "The chlorine dioxide violations reported today include exceedances of the drinking water standard within the distribution system which delivers water to consumers. Violations of the chlorine dioxide standard within the distribution system may harm human health based on short-term exposures. Certain groups, including fetuses, infants, and young children, may be especially susceptible to nervous system effects from excessive chlorine dioxide exposure."

 

Contaminant in CCR units	Traditional MCL in mg/l, except where noted	To convert for CCR, multiply by	MCL in CCR units	MCLG in CCR units	Major sources in drinking water	Health effects language
Total organic carbon [TOC - control of DBP precursors] (ppm)	TT	No conversion necessary	TT	None	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.
Other Ttreatment Ttechniques
Acrylamide	TT	No conversion necessary	TT	zero	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.
Epichlorohydrin	TT	No conversion necessary	TT	zero	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.

 

 

Rule 408b. (1) The supplier of a noncommunity water system granted permission by the department under R 325.10604c(63) to exceed the nitrate MCL shall provide notice to persons served according to the requirements for a tier 1 notice under R 325.10402(1) and (2).

(2) Noncommunity water systems granted permission by the department to exceed the nitrate MCL under R 325.10604c(63) shall provide continuous posting of the fact that nitrate levels exceed 10 mg/l and the potential health effects of exposure, according to the requirements for tier 1 notice delivery under R 325.10402(3) and the content requirements under R 325.10405.

 

R 325.10414 Annual consumer confidence reporting; required additional health information.

Rule 414. (1) All reports shall 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 may 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 [phone])."

(2)   A supply that detects arsenic at levels above 0.005 mg/l and up to and including 0.010 mg/l shall do either of the following:

(a)     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."

(b)    Write its own educational statement, but only in consultation with the department.

(3)    A supply that detects nitrate at levels above 5 mg/l, but below the MCL shall do either of the following:

(a)    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 are encouraged to ask advice from your health care provider."

(b)    Write its own educational statement, but only in consultation with the department.

(4)   Supplies that detect lead above the action level in more than 5%, and up to and including 10%, of homes sampled shall do either of the following:

(a)     Include a short informational statement about the special impact of lead on children using language, such as, "Infants and young children are typically more vulnerable to lead in drinking water than the general population. It is possible that lead levels at your home may be higher than at other homes in the community as a result of materials used in your home's plumbing. If you are concerned about elevated lead levels in your home's water, you may wish to have your water tested and flush your tap for 30 seconds to 2 minutes before using tap water. Additional information is available from the Safe Drinking Water Hotline [phone])."

(b)    Write its own educational statement, but only in consultation with the department.

 

 

(5) Community water supplies that detect total trihalomethanes above 0.080 mg/l, but below the MCL in R 325.10604a, as an annual average, monitored and calculated under R 325.10719a, R 325.10719b, and R 325.10719c, shall include health effects language prescribed by table 1 of R 325.10405.

(65) Beginning in the report due by July 1, 2002 and ending January 22, 2006, a supplier of a community water system that detects arsenic above 0.010 mg/l and up to and including 0.05 mg/l shall include the arsenic health effects language prescribed by table 1 of R 325.10405.