1151. Annual water supply statement. Each water works corporation shall prepare and provide an annual water supply statement to the customers it serves. Such statement shall contain such information as is required in this title as well as any additional information required by the commissioner. Additionally, the statement shall provide a section which explains, in plain language, the information required in the statement. The department may prepare or prescribe a format or model upon which all such statements shall be produced. The annual water supply statement shall include, but not be limited to, the following items of information:
1. A brief description on the source or sources of the water supply and the general qualitative and quantitative condition of the water source.
2. The population served.
3. For water works corporations that calculate water use of all customers with meters, an accounting of the total annual amount of water withdrawn, delivered, and lost from the system.
4. The analytical testing results for those constituents required to be tested for under part five of the state sanitary code or as required by appropriate local health units, except for microbiological results, for each source of water.
Where more than one analysis per year is conducted on a specific constituent, the water works corporation shall list the range of results from highest to lowest during the reporting period. The applicable state guideline, standard, or MCL for each constituent present shall be listed and any instance where a state guideline, standard, or MCL is violated shall be noted.
For microbiological analyses as required by part five of the state sanitary code, the water works corporation shall indicate any instance where the water supply violated the MCL. The date or dates of violation, the location where the violation occurred, and the response of the water works corporation shall be listed.
5. A brief description of the types of treatment that the water receives before entering the distribution system.
6. Any water sources restricted, removed from service, or otherwise limited in their use and any actions taken to secure new supplies or replace lost capacity. For the purposes of this subdivision, "water sources" shall include surface water sources, such as, but not limited to, lakes, ponds, rivers, streams, reservoirs and impoundments and for groundwater sources, supply wells. For the purposes of this subdivision, "water sources" shall not include water mains or other types of conveyance infrastructure.
7. Information on water conservation measures customers can implement such as, but not limited to, retrofitting plumbing fixtures, altering irrigation timing, using irrigation sensors, leak detection, proper use of water-conserving appliances, daily conscientious use of water, and the estimated savings in water and energy or money from the use of such measures.
8. A description of the risks associated with exposure to cryptosporidium parvum or giardia lamblia for specific at-risk populations and the general public and measures that at-risk populations can take to protect themselves according to recommendations by the department or other governmental public health or environmental agencies. In addition, for water works corporations that test for cryptosporidium parvum or giardia lamblia, a summary of the following: sampling sites; number of tests per year; testing results and actions taken in response to those results.
The commissioner may add such additional requirements as he determines to be appropriate.
Last modified: February 3, 2019