§ 94-93. Investigation and monitoring of suspected or known spills.

(a)

Investigation of contamination or discharge. If, during inspection by city personnel pursuant to this article, a facility is found to have visible signs of contamination or if a reportable discharge occurs that may affect soil, surface water or groundwater, the facility owner shall conduct an investigation which may include soil boring, soil sampling and analysis, and monitoring well installation following the procedures of this section.

(b)

Applicable rules and guidelines. Petroleum and petroleum product contamination shall follow the procedures established in F.A.C. ch. 17-770. Established state department of environmental protection enforcement cases shall follow FDEP's Model Orders for Corrective Action or the procedures established by consent order. All other regulated substances shall follow procedures set forth by the county environmental protection department on a case-by-case basis. Sampling procedures and laboratory analysis shall meet the requirements of F.A.C. ch. 17-160.

(c)

Soil borings/well monitoring installation.

(1)

Soil borings. Soil samples obtained from soil borings shall be field tested for visual and vapor/liquid phase contamination according to F.A.C. ch. 17-770, or for volatilization if the regulated substance has the potential to volatilize using an organic vapor analyzer or a photoionization detector. Any other regulated substance shall be field or laboratory tested for parameters that are diagnostic for the chemical discharged. No soil boring may be drilled to a depth greater than 50 feet without the permission of the city. All borings deeper than 25 feet shall be neat cement grouted to the surface to prevent downward migration of surface and subsurface contaminants along the borehole to the Floridan Aquifer.

(2)

Monitoring well installation. If any soil sample is found to be contaminated, the contamination must be delineated in a horizontal and vertical direction and remediated. If the water table is intercepted through the soil contamination delineation such that groundwater contamination may have occurred, a monitoring well shall be installed in the contaminated area and a groundwater analysis for the diagnostic constituents of the discharged substance must be performed by a state-certified lab. If, during laboratory analysis, groundwater contamination is detected, a sufficient number of monitoring wells shall be installed so that groundwater contamination is delineated in both a horizontal and vertical direction. All monitoring wells must be drilled by a licensed well driller who shall obtain a permit from the South Florida Water Management District or St. Johns River Water Management District. All other procedures shall follow those established by the county environmental protection department. This shall include but not be limited to the following: sampling frequency, site rehabilitation, closure of groundwater, monitoring wells and monitoring requirements.

(3)

Contamination of potable drinking water sources. Any discharge of a regulated substance that is proven to contaminate a public or private potable well shall be remediated by the regulated substance property owner or operator at his own expense, including but not limited to costs associated with reporting; technical report preparation; providing alternative potable water sources; monitoring groundwater contamination in public, private, and monitoring wells; and any action taken by local officials to respond to and provide assistance to the responsible party.

(4)

Identification of existing sources. The wellhead protection program shall undertake the identification of existing sources and may perform investigative procedures, remedial action, or any other action necessary to protect the Floridan Aquifer at the property owner's expense if the property owner of record does not undertake the prescribed investigative procedures resulting from a property inspection.

(Code 1988, § 26-5.3)