BackA Regulation Pertaining to Underground Petroleum Storage Facilities
The purpose of the regulation is to prevent or minimize contamination of the waters of the district which may result from a failure of underground facilities which store oil and other petroleum liquids.
EXISTING TANKS
I. Effective December 1, 1986, any existing underground fuel oil tank (UFOT) facility shall be registered with the local Director of Health.
A. Residential and non-residential tanks less than 2100 gallons.
1. Life expectancy of 15 years -- must be tested within 33 - 36 months prior to age 15 years.
2. Tested every three years thereafter.
a. Results shall be reported regularly to the Health District.
3. Detection of leak indicates tank must be emptied immediately, removed, repaired, or abandoned within ninety (90) days (see B1a ).
B. Recommend tanks be removed (while still intact)(prior to failure).
1. UFOT shall be removed or abandoned in accordance with procedures specified in National Fire Protection Association 30 (NFPA).
a. Removal shall be done by a tank removal operator who shall
(1) notify Health District and fire marshall's office to be present to witness said removal;
(2) sample soil under or around tank, if required by witnesses;
(3) safely remove tank to appropriate facility for proper disposal;
(4) safely remove contaminated soil, if necessary, and dispose of in a DEP approved manner.
b. An abandoned tank must be rendered unfit to use and may be left in place if
(1) opened and thoroughly cleaned inside;
(2) soil beneath tank sampled for contamination;
(3) appropriately filled and covered;
(4) Health District representative and fire marshal representative is present to witness said abandonment.
NEW TANKS
II. Any residential or non-residential owner and/or operator who wishes to install a UFOT of less than 2100 gallons which is not regulated by the State of Connecticut regulation 22a-449(d)-1 shall submit an application for a permit to the Health District, at least fifteen (15) days prior to installation.
A. Permit application should include:
1. Name and address of owner and installer.
2. Type of tank -- must be listed steel or F.R.P. (Fiberglass reinforced plastic);
3. Number of gallons;
4. Years of guarantee;
5. Cathodic protection and monitoring device (steel only);
6. Contact plates;
7. Overfill protection;
8. Safety shield or sleeve on buried transmission lines;
9. Type of petroleum;
10. Protective coating (steel only);
11. Name and location of manufacturer.
B. If the application is approved, proper installation shall consist of
1. Tank 24 - 36 inches below grade;
2. Excavation of at least one foot (1') around perimeter of tank;
3. Firm and level bottom;
4. Bottom of hole shall be covered with twelve inches (12") of sand, pea gravel, or #8 crushed stone;
5. Full length concrete pad;
6. Placement of an additional six inches (6") to twelve inches (12") of sand, pea gravel, or #8 crushed stone on top of concrete pad;
7. Tank is to be placed on top of sand, pea gravel, or #8 crushed stone;
8. Remaining fill shall consist of at least six inches (6") of sand, pea gravel, or #8 crushed stone.
a. Ashes, stones, and other corrosive materials are not to be placed in excavation hole.
C. Health District shall be notified for an inspection prior to backfilling of tank.
D. Tank shall be pressure tested before completely being covered or put to use.
1. All buried transmission lines shall have safety shield or sleeve installed.
2. Health District shall be notified within thirty (30) days so a final inspection can be made.
3. All newly installed steel tanks shall be tested annually by owner using voltage regulator.a. Structure to soil test voltage reading of at least negative 0.85 volts measured between structure and copper sulfate electrode must be maintained.
2. Yearly records of these readings are to be kept by owner.
3. Malfunction must be reported to Health District and repaired immediately.
Adopted:
October 15, 1986
Board of Directors
Chesprocott Health District
Copies of the complete regulation can be secured at
Chesprocott Health District, 124 Highland Avenue, Cheshire, Connecticut 06410