Section R. 325.10710d - Reporting requirements for lead, copper, and corrosion controlRule 710d.
This rule applies to all community and nontransient noncommunity water supplies. These public water supplies are also considered "water supplies" or "supplies" in this rule. Supplies shall report all of the following information to the department:
(a) Reporting provisions for tap water monitoring for lead and copper and for water quality parameter monitoring are as follows:(i) Except as provided in subparagraph (G) of this paragraph, a water supply shall report the information specified in this paragraph for all tap water samples specified in R 325.10710a and for all water quality parameter samples specified in R 325.10710b within the first 10 days after the end of each applicable monitoring period specified in R 325.10710a and R 325.10710b, for example, every 6 months, annually, every 3 years, or every 9 years. For monitoring periods with a duration less than 6 months, the end of the monitoring period is the last date samples can be collected during that period as specified in R 325.10710a to R 325.10710b. All of the following apply: (A) The results of all tap samples for lead and copper, including the location of each site and the criteria in R 325.10710a(1)(c), (d), (e), (f), or (g) used to select the site for the system's sampling pool.(B) Documentation for each tap water lead or copper sample for which the water supply requests invalidation under R 325.10710a(6)(b).(C)The ninetieth percentile lead and copper concentrations measured from among all lead and copper tap water samples collected during each monitoring period, calculated in compliance with the provisions of R 325.10604f(1)(c)(i), unless the department calculates the system's ninetieth percentile lead and copper levels under subdivision (h) of this subrule.(D) With the exception of initial tap sampling conducted under R 325.10710a(4)(a), a water supply shall designate sites not sampled during previous monitoring periods and include an explanation of why sampling sites have changed.(E) The results of all tap samples for pH and, where applicable, alkalinity, calcium, conductivity, temperature, and orthophosphate or silica collected under R 325.10710b(b) to (e).(F) The results of all samples collected at the entry point or points to the distribution system for applicable water quality parameters under R 325.10710b(b) to (e).(G) A water supply shall report the results of all water quality parameter samples collected under R 325.10710b(5) to (8) during each 6-month monitoring period specified in R 325.10710b(6) within the first 10 days following the end of the monitoring period, unless the department has specified a more frequent reporting requirement.(ii) For a nontransient noncommunity water system, or a community water system meeting the criteria of R 325.10410(3)(g), that does not have enough taps that can provide first draw samples, the supply shall do either of the following as appropriate: (A) Provide written documentation to the department identifying standing times and locations for enough non-first draw samples to make up its sampling pool under R 325.10710a(2)(d) by the start of the first applicable monitoring period under R 325.10710a(4) that commences after April 11, 2000, unless the department has waived prior department approval of non-first draw sample sites selected by the supply under R 325.10710a(2)(d).(B) If the department has waived prior approval of non-first draw sample sites selected by the supply, identify, in writing, each site that did not meet the 6-hour minimum standing time and the length of standing time for that particular substitute sample collected under R 325.10710a(2)(d) and include this information with the lead and copper tap sample results submitted under subdivision (a)(i) of this subrule.(iii) At a time specified by the department, or if no specific time is designated by the department, then as early as possible prior to the addition of a new source or a long-term change in water treatment, a water supply considered to have optimized corrosion control under R 325.10604f(2)(b), a system subject to reduced monitoring under R 325.10710a(4)(d), or a system subject to a monitoring waiver under R 325.10710a(7) shall submit written documentation to the department describing the change or addition. The department shall review and approve the addition of a new source or long-term change in treatment before it is implemented by the water supply. Examples of long-term treatment changes include the addition of a new treatment process or modification of an existing treatment process. Examples of modifications include adding ozone, switching secondary disinfectants, switching coagulants (for example, alum to ferric chloride), and switching corrosion inhibitor products (for example, orthophosphate to blended phosphate). Long- term changes can include dose changes to existing chemicals if the supply is planning long-term changes to its finished water pH or residual inhibitor concentration. Long-term treatment changes would not include chemical dose fluctuations associated with daily raw water quality changes.
(iv) A small water supply applying for a monitoring waiver under R 325.10710a(7), or subject to a waiver granted under R 325.10710a(7)(c), shall provide all of the following information to the department, in writing, by the specified deadline: (A) By the start of the first applicable monitoring period in R 325.10710a(4), a small water supply applying for a monitoring waiver shall provide the documentation required to demonstrate that it meets the waiver criteria of R 325.10710a(7)(a) and (b).(B) Not later than 9 years after the monitoring previously conducted under R 325.10710a(7)(b) or R 325.10710a(7)(d)(i), a small water supply desiring to maintain its monitoring waiver shall provide the information required by R 325.10710a(7)(d)(i) and (ii).(C) Not later than 60 days after it becomes aware that the system is no longer free of lead containing or copper containing material, or both, as appropriate, a small water supply with a monitoring waiver shall provide written notification to the department, setting forth the circumstances resulting in the lead containing or copper containing materials, or both, being introduced into the system and what corrective action, if any, the supply plans to remove these materials.(v) Each ground water supply that limits water quality parameter monitoring to a subset of entry points under R 325.10710b(5)(c), the supply shall provide, by the commencement of the monitoring, written correspondence to the department that identifies the selected entry points and includes information sufficient to demonstrate that the sites are representative of water quality and treatment conditions throughout the system.(b) Source water monitoring provisions are as follows:(i) A water supply shall report the sampling results for all source water samples collected under R325.10710c within the first 10 days after the end of each source water monitoring period, for example, annually, per compliance period, or per compliance cycle, specified in R 325.10710c.(ii) With the exception of the first round of source water sampling conducted under R 325.10710c(2), a supply shall specify sites that were not sampled during previous monitoring periods and include an explanation of why the sampling points have changed.(c) A supply shall report the following corrosion control treatment information to the department by the applicable dates specified in R 325.10604f(2): (i) For a supply that has already optimized corrosion control, the information required in R 325.10604f(2)(b)(ii) or (iii).(ii) For a supply required to optimize corrosion control, the supply's recommendation regarding optimal corrosion control treatment under R 325.10604f(3)(a).(iii) For a supply that is required to evaluate the effectiveness of corrosion control treatments under R 325.10604f(3)(c), the information required by R 325.10604f(3)(c).(iv) For a supply required to install optimal corrosion control designated by the department under R 325.10604f(3)(d), documentation certifying that the supply has completed installing the optimal corrosion control.(d) A water supply shall provide the following source water treatment information to the department by the applicable dates specified in R 325.10604f(4): (i) If required under R 325.10604f(4)(b)(i), the supply's recommendation regarding source water treatment.(ii) For a supply required to install source water treatment under R 325.10604f(4)(b)(ii), documentation certifying that the supply has completed installing the treatment designated by the department within 24 months after the department designated the treatment.(e) A water supply shall report all of the following lead service line replacement information to the department to demonstrate compliance with the requirements of R 325.10604f(5): (i) Not later than 12 months after the end of a monitoring period in which a supply exceeds the lead action level in sampling referred to in R 325.10604f(5)(a), the supply shall submit written documentation to the department of the materials evaluation conducted as required in R 325.10710a(1) or the materials inventory required under R 325.11604(c), identify the initial number of lead service lines in its distribution system at the time the supply exceeds the lead action level, and provide the supply's schedule for annually replacing not less than 7% of the initial number of lead service lines in its distribution system.(ii) Not later than 12 months after the end of a monitoring period in which a supply exceeds the lead action level in sampling referred to in 325.10604f(5)(a), and every 12 months thereafter, the supply shall submit a written report to the department that demonstrates the supply has replaced, in the previous 12 months, not less than 7% of the initial lead service lines, or a greater number of lines specified by the department under R 325.10604f(5)(d), in its distribution system.(iii) The annual documentation submitted to the department under paragraph (ii) of this subdivision, which shall contain all of the following information: (A) The number of lead service lines scheduled to be replaced during the previous year of the system's replacement schedule.(B) The number and location of each lead service line replaced during the previous year of the system's replacement schedule.(C) If measured, the water lead concentration and location of each lead service line sampled, the sampling method, and the date of sampling.(iv) At the request of the department, a supply that collects lead service line samples following partial lead service line replacement required by R 325.10604f(5) shall report the results to the department as specified in R 325.10734(1). Supplies shall also report additional information as specified by the department under R 325.11505(2) to verify that all partial lead service line replacement activities have taken place.(f) A water supply shall provide the following public education reporting information to the department: (i) A water supply that is subject to the public education requirements in R 325.10410 shall, within 10 days after the end of each period in which the supply is required to perform public education tasks under R 325.10410(3), send written documentation to the department that contains both of the following: (A) A demonstration that the supply has delivered the public education materials that meet the content requirements in R 325.10410(2) and the delivery requirements in R 325.10410(3).(B) A list of all the newspapers, radio stations, television stations, and facilities and organizations to which the supply delivered public education materials during the period in which the supply was required to perform public education tasks.(ii) Unless required by the department, a supply that previously has submitted the information required by paragraph (i)(B) of this subdivision need not resubmit the information required by paragraph (i)(B) of this subdivision, if there have been no changes in the distribution list and the supply certifies that the public education materials were distributed to the same list submitted previously.(iii) Not later than 3 months following the end of the monitoring period, each supply shall mail a sample copy of the consumer notification of tap results to the department along with a certification that the notification has been distributed consistent with the requirements of R 325.10410(5).(g) A water supply that collects sampling data in addition to that required by this part shall report the results to the department within the first 10 days following the end of the applicable monitoring period specified in R 325.10710a, R 325.10710b, and R 325.10710c during which the samples are collected.(h) A water supply is not required to report the ninetieth percentile lead and copper concentrations measured from among all lead and copper tap water samples collected during each monitoring period, as required by subdivision (a)(i)(C) of this rule if all of the following provisions are satisfied: (i) The department has previously notified the supply that it will calculate the supply's ninetieth percentile lead and copper concentrations, based on the lead and copper tap results submitted under paragraph (ii)(A) of this subdivision, and has specified a date before the end of the applicable monitoring period by which the supply shall provide the results of lead and copper tap water samples.(ii) The supply has provided the following information to the department by the date specified in paragraph (i) of this subdivision:(A) The results of all tap samples for lead and copper including the location of each site and the criteria under R 325.10710a(1)(c), (d), (e), (f), or (g), under which the site was selected for the system's sampling pool, under subdivision (a)(i)(A) of this rule.(B) An identification of sampling sites utilized during the current monitoring period that were not sampled during previous monitoring periods, and an explanation why sampling sites have changed.(iii) The department has provided the results of the ninetieth percentile lead and copper calculations, in writing, to the supply before the end of the monitoring period.Mich. Admin. Code R. 325.10710d
1994 AACS; 1998 AACS; 2002 AACS; 2009 AACS; 2018 MR 11, Eff. 6/14/2018