1. (a) The owner of a CWS shall prepare an emergency plan based on the assessment of risks using current scientific data and projections as applicable, to address emergency situations, including but not limited to actions or impairments triggering department notification as defined in Env-Dw 503.19(a), such as, power outages, drought, flooding, saltwater intrusion, and extreme weather.

2. (b) The emergency plan shall include the following:

   1. (1) A description of the roles and responsibilities for each individual involved during an emergency situation;
   2. (2) A description of how the department, local officials, CWS customers including any PORS or consecutive systems, and the general public will be notified of an emergency situation;
   3. (3) A step-by-step description of how the system will implement an acute public notice, including a boil water order, do not drink notice, or do not use notice;

   4. (4) The mailing address, emergency telephone number, and non-emergency telephone number of each of the following local officials and agencies:

      1. a. The fire department;
      2. b. The police department;
      3. c. At least one ambulance service;
      4. d. The health officer;
      5. e. The CWS’s primary certified operator(s); and
      6. f. The owner(s) of abutting water system(s);

   5. (5) The emergency and non-emergency telephone numbers of the following state agencies:

      1. a. The state police;
      2. b. The department’s drinking water and groundwater bureau;
      3. c. The department of safety, homeland security and emergency management; and
      4. d. The department of health and human services, division of public health services;

   6. (6) The names and emergency and non-emergency telephone numbers for local service and repair contractors that might be needed in an emergency, including but not limited to:

      1. a. An electrician;
      2. b. The electric utility;
      3. c. A pump specialist;
      4. d. An excavation contractor;
      5. e. A state-accredited laboratory; and
      6. f. Media such as radio station and newspaper;

   7. (7) The name and emergency and non-emergency telephone numbers for each service customer with unique water supply needs, including but not limited to:

      1. a. Hospitals;
      2. b. Nursing homes;
      3. c. Health rehabilitation centers;
      4. d. Housing for older persons as described in RSA 354-A:15;
      5. e. Fire department; and
      6. f. Schools;
   8. (8) A description of how the water supply needs of service customers specified in (7) above, will be met;

   9. (9) A description of how the CWS will continue to provide essential functions during an emergency by addressing the following:

      1. a. Essential personnel;
      2. b. Essential system operations;
      3. c. Orders of succession;
      4. d. Continuity communications;
      5. e. Record management;
      6. f. Cross-training programs; and
      7. g. Alternate facilities;
   10. (10) A description of any existing mutual aid agreements or memberships and where a copy of the agreement(s) can be found;

   11. (11) A brief list of the CWS’s primary components, or reference to the CWS’s asset management plan if it contains a complete list, otherwise including but not limited to:

       1. a. All active sources;
       2. b. All operable inactive wells;
       3. c. All source and distribution pump stations;
       4. d. All distribution system pressure reducing vaults or stations;
       5. e. All water treatment facilities;
       6. f. All storage tanks;
       7. g. All drinking water chemicals; and
       8. h. Primary and backup communications equipment;
   12. (12) A description of the type of record drawings available and where the drawings are located;

   13. (13) A description of the CWS that includes at least the following:

       1. a. The total production capacity of each active and inactive well or surface water treatment plant;
       2. b. The total storage capacity of the system;
       3. c. The average and maximum daily demand of the system;
       4. d. The system’s ability to isolate sections of the distribution system; and
       5. e. If applicable, a description, based on existing information, of the hydraulic interconnectivity of the system’s sources and an estimate of the extent to which a contamination event would affect total production capacity;

   14. (14) A description of the CWS’s backup power capabilities, including but not limited to:

       1. a. Whether there is a manual or automatic transfer switch;
       2. b. Type and size of generator;
       3. c. Which operations the generator supports;
       4. d. Fuel type;
       5. e. How long the generator is capable of operating; and
       6. f. Testing and maintenance schedule of the generator;

   15. (15) A description of alternate water sources or short-term measures the CWS could use during an emergency situation, including, but not limited to:

       1. a. The use of bottled water;
       2. b. Purchasing bulk water in accordance with Env-Dw 304;
       3. c. Reactivating deactivated sources of water;
       4. d. Interconnections with adjacent water supply systems;
       5. e. Installation of water treatment; and
       6. f. Imposing water use restrictions;
   16. (16) A description of follow-up action and responsibility for returning to regular system operation;

   17. (17) A description of procedures for responding to breaches in cybersecurity systems, including, but not limited to:

       1. a. The name and emergency and non-emergency telephone numbers for the information technology contact;
       2. b. The ability to disconnect impacted computers from the network to isolate the problem;
       3. c. How the CWS will assess the damage to the equipment or disruptions caused to utility operation;
       4. d. If needed, how the CWS will initiate manual operation of equipment if control systems have been compromised;
       5. e. How the CWS plans to restore operation of their critical processes that were impacted;
       6. f. How the CWS will distribute any advisories or alerts to customers as needed, including customers whose records may have been compromised; and
       7. g. Documentation procedures to be used to track cyber incident responses; and

   18. (18) For CWSs serving more than 1,000 persons that are located within the 10-mile Emergency Planning Zone as defined in 44 CFR 350.2 for the Seabrook Station nuclear power plants, the emergency plan shall include the following:

       1. a. A statement that the water system is located within the Emergency Planning Zone; and
       2. b. A statement that the water system will follow the established local and state procedures, which are available from the local emergency management director of the municipality, for responding to radiological emergencies.
3. (c) CWSs shall submit an emergency plan to the department as part of the final approval to operate process per Env-Dw 404 or Env-Dw 405, as applicable.
4. (d) The CWS owner and primary operator shall sign and date the emergency plan prior to submittal to the department.

5. (e) The CWS owner and primary operator shall:

   1. (1) Annually review the emergency plan; and
   2. (2) Update the plan as necessary to reflect current information.
6. (f) The CWS owner shall file the most recent emergency plan with the department by March 31 every 5 years, beginning March 31, 2026.
7. (g) The emergency plan shall be available for review during each scheduled sanitary survey, as required by Env-Dw 720.

Source. #14006, eff 6-25-24 (formerly Env-Dw 503.21)