1. (a) In addition to the electrical control system, an alarm system shall be provided. At a minimum, alarms to note failure of pumps and low water levels in the atmospheric storage tank(s) shall be provided. Each alarm shall cause a horn to sound inside the pumphouse and a red light on the exterior of the pumphouse to be illuminated. Each alarm function shall be labeled and the alarm shall be equipped with a silencing mechanism.
2. (b) In instances where the pumphouse is not easily seen, the alarm system shall include an auto dialer or similar computerized remote telemetry that will transmit the alarms to the owner or operator.

3. (c) Water meters shall be:

   1. (1) Installed to continuously measure the flow from:

      1. a. Each source independently;
      2. b. Any washwater;
      3. c. Any recycled water;
      4. d. Any blended water of different quality; and
      5. e. The finished water at the distribution entry point prior to the first customer and after any storage or clearwell at the pumphouse or treatment facility; and
   2. (2) Maintained in accordance with the standards of the AWWA as required by Env-Dw 402.
4. (d) Data from the meters required under (c) above shall be recorded such that the operator may periodically access and save the data for tracking purposes. For each source, the monthly volume of withdrawal and the 24-hour maximum volume for each month shall be recorded and reported to the department in accordance with Env-Wq 2102.
5. (e) A pressure gauge shall be provided on the discharge line of the well pump prior to the check valve and on the finished water line entering distribution after storage. Gauges shall be installed with gauge cocks for isolation and of suitable range for the expected pressure range.
6. (f) The water system shall be capable of receiving an immediate addition of a disinfectant.

7. (g) Components of the system required by (e) above, shall include:

   1. (1) An injection tap on source water feed lines, before all water storage tanks; and
   2. (2) An electrical outlet interconnected with the source pump electrical system.
8. (h) All well and booster pump controls shall have a manual “off/on/automatic” switch to control pump operations.
9. (i) Air compressors, if needed as part of the system design, shall be of the oil-less type.
10. (j) Mercury-type float switches shall be prohibited and if present shall be removed.
11. (k) Pump run time meters shall be installed on all pumps, including, but not limited to, well pumps and booster pumps.
12. (l) All lubricants for motors, pumps, and other mechanical equipment that comes into contact with potable water shall be of food grade oils.

Source. (See Revision Note at part heading for Env-Dw 405) #10612, eff 6-1-14; ss by #14158, eff 12-25-24 (formerly Env-Dw 405.22)