1. (a) If demand exceeds supply for more than 30 days, the owner of the PWS shall:

   1. (1) Implement water use restrictions;
   2. (2) Inform the department in writing of any actions taken or directed to restrict customer demand within 3 days;
   3. (3) Submit a plan, in writing, to permanently correct the problem to the department within 60 days; and
   4. (4) Implement corrective actions as approved by the department pursuant to (d) below.

2. (b) The plan required by (a)(3) above, shall include one or more of the following, as appropriate to the cause(s) of the shortage:

   1. (1) Development of additional water supply source(s);
   2. (2) Implementation of a leak detection plan;
   3. (3) Implementation of a water conservation plan; or
   4. (4) Other actions as deemed necessary.

3. (c) In addition to developing the plan required by (a)(3) above, the owner of the PWS may take action to modify long term demand by:

   1. (1) Adjusting water rates;
   2. (2) Installing customer service water meters;
   3. (3) Requiring installation of water conservation devices; or
   4. (4) Taking other actions such as described in Env-Wq 2101 relative to water conservation.

4. (d) The department shall:

   1. (1) Review the plan submitted pursuant to (a)(3) above within 30 days of receiving the plan; and
   2. (2) Approve the corrective action(s) in the plan if the department determines that the corrective action(s) are likely to address the cause(s) of the shortage.

Source. (See Revision Note at part heading for Env-Dw 503) #10465, eff 12-2-13; ss by #14006, eff 6-25-24 (formerly Env-Dw 503.20)