N.J. Admin. Code § 7:19-6.7

Current through Register Vol. 56, No. 18, September 16, 2024

Section 7:19-6.7 - System pressure and storage

(a) Public community water systems shall be adequately maintained so as to sustain minimum water pressures of at least 20 pounds per square inch at street level, in all parts of the distribution network, under all required flow conditions. The balances and interrelationships of source location, interconnections, transmission and distribution grid, size of transmission-distribution system lines, location of booster pumps, existence of pressure zones and location of storage facilities must be such as to insure the minimum pressure of 20 pounds per square inch at street level.

(b) With respect to the total capacity of system storage, the following minimum requirements apply to all systems. The Department may modify these requirements, provided adequate justifying data is submitted, demonstrating that service will not be disrupted during extended periods of system stress.

	Type of System	Minimum Storage
		Percentage of Average
		Daily Demand
i.	Single, prime source, no interconnection(s), no	100 percent
	auxiliary power at water source
ii.	Single, prime source, no interconnection(s),	80 percent
	auxiliary power provided at water source +
iii.	Single, prime source with interconnection(s) ++	50 percent
iv.	Multiple source, no interconnection(s), no	80 percent
	auxiliary power at water source
v.	Multiple sources, no interconnection(s),	50 percent
	auxiliary power provided at water source +
vi.	Multiple sources, with interconnection(s)	50 percent
vii.	Multiple sources, interconnection(s)++, auxiliary	30 percent
	power provided at water source +
viii.	Same as vii. above, and distributing more than an	20 percent
	average of 50 million gallons per day
+ Auxiliary power must be able to supply at least 50 percent of average
production.
++ Combined interconnection(s) must be able to supply at least 50 percent of
average production; contract commitment from supplier is required.

(c) Where system size allows, storage should be spread out and located at different points within the system.

(d) The provisions of this section are intended to complement 7:10-11.8(a) of the New Jersey Safe Drinking Water Act Regulations and are to be complied with in lieu of the present requirements in 7:10-11.8(a)3 and 4.

N.J. Admin. Code § 7:19-6.7