(a)  Local Water Supply Plan.  Units of local government which are operating under a local water supply plan in accordance with G.S. 143-355(l) shall not be limited in the number of service connections.

(b)  No local water supply plan.  A public water system which does not have a local water supply plan as stated in Paragraph (a) shall limit its number of service connections as follows:

(1)           A public water system shall meet the daily flow requirements specified in Table 1:


Table 1:  Daily Flow Requirements


Type of Service Connection

Daily Flow for Design


400 gallon/connection

Mobile Home Parks

250 gallon/connection

Campgrounds and Travel Trailer Parks

100 gallon/space


10 gallon/boat slip

Marina with bathhouse

30 gallon/boat slip

Rest Homes and Nursing Homes


    with laundry

120 gallon/bed

    without laundry

60 gallon/bed


15 gallon/student

Day Care Facilities

15 gallon/student

Construction, work, or summer camps

60 gallon/person

Business, office, factory (exclusive of industrial use)


    without showers

25 gallon/person/shift

    with showers

35 gallon/person/shift


300 gallon/bed


(2)           A public water system serving different types of service connections shall meet the maximum daily demand calculated as follows:

(A)          Where records of the previous year are available that reflect daily usage, the average of the two highest consecutive days of record of the water treated shall be the value used to determine if there is capacity to serve additional service connections (unusual events such as massive line breaks or line flushings shall not be considered).

(B)          Where complete daily records of water treated are not available, the public water system shall multiply the daily average use based on the amount of water treated during the previous year of record by the appropriate factor to determine maximum daily demand, as follows:

(i)            A system serving a population of 10,000 or less shall multiply the daily average use by 2.5; or

(ii)           A system serving a population greater than 10,000 shall multiply the daily average use by 2.0.


History Note:        Authority G.S. 130A-315; 103A-317; P.L. 93-523;

Eff. July 1, 1994.