N.H. Admin. Code § Env-Dw 504.09 - Storage Tank Inspection and Maintenance
(a) At least once
every 5 years, the owner of a PWS shall have each water storage tank used by
the system inspected to the maximum extent practical and evaluated for
structural strength, corrosion, and other factors related to water quality and
tank integrity.
(b) Tanks with a
capacity of 20,000 gallons or less, and less than 20 years in age, shall not be
required to be inspected internally unless the tank shows any visible signs of
diminished integrity or damage or might be adversely affecting water
quality.
(c) Metal storage tank
surfaces shall be painted or otherwise protected as determined by the tank
inspection report recommendations, using materials approved in accordance with
Env-Dw 403.
(d) The owner of a PWS
shall maintain emergency access to the tank's filler pipe.
Notes
(See Revision Note at part heading for Env-Dw 504) #10465, eff 12-2-13
State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.
No prior version found.