|
Welcome to the second annual edition of The Mix.
In this
issue, we will cover information related to portable batch plants, fuel storage tanks, best management practices associated with wastewater
and stormwater management, and concrete truck washouts at construction sites. As always, if you have any questions or concerns, contact
your local DEP district office at 850-595-8300.
Portable Batch Plant
The industrial
wastewater permitting section permits the discharge from portable concrete
batch plants. If you plan to operate a portable concrete batch plant, please
contact Bill Evans, Wastewater Permitting Manager, at Bill.Evans@dep.state.fl.us or 850-595-0584 to discuss your permit
needs. DEP staff will determine if your portable concrete batch plant requires coverage
under the Generic Permit for Discharges from Concrete Batch
Plants in accordance with Rule 62-621.300(3), F.A.C. The requirements for
your facility will depend on the amount of Type I and Type II industrial
wastewater produced. The generic permit can be found here. The Notice of Intent to Use the Generic
Permit for Discharges from Concrete Batch Plants can be found here.
Other permits
besides the industrial wastewater generic permit may be required. The Generic
Permit for Discharges from Concrete Batch Plants does not constitute
authorization under Part IV of Chapter 373, F.S., for the construction,
alteration, operation, maintenance, abandonment or removal of any stormwater
management system, dam, impoundment, reservoir or appurtenant work or works,
including dredging or filling in, on or over wetlands and other surface
waters, as determined by the methodology authorized in Subsection 373.421(1),
F.S. The construction of your facility may require a Generic Permit for
Stormwater Discharge from Large and Small Construction Activities. Please
consult with the appropriate stormwater and environmental resource permitting
program staff regarding other permit requirements.
The fuel storage tank at your
facility might be subject to Florida’s storage tank regulations. Aboveground tanks with a holding capacity of
greater than 550 gallons that contain regulated substances must be registered with
DEP and comply with registration, operational, maintenance and
financial responsibility requirements. Vehicular fuel – including diesel and gasoline – used to power onsite or
offsite vehicles is a regulated substance.
Facilities with regulated
tanks registered with the department and having an assigned
facility ID number, will be inspected at least once every two years. Florida has delegated storage tank compliance
inspection authority to local county programs, typically Department of Health
offices.
If you have a storage tank at your
facility that you suspect should be regulated, please contact Mark Gillman,
Environmental Consultant, at 850-595-0586.
He will help you determine if your tank is regulated and will help you
meet Florida’s storage tank regulations.
|
Concrete trucks should not be washed at construction
sites where the runoff will flow directly into a waterbody or stormwater
conveyance system. Special areas should be designated for washing vehicles.
Concrete washout areas should be located where the runoff can be collected and
removed from the site or the concrete collected for drying and reuse on the site. Concrete
washout areas may be constructed onsite by digging a pit and lining it with
plastic. Manufactured products can also be purchased for this purpose.
Plastic lined concrete washout pit
The Wastewater and Stormwwater Managerment Plan consists of two primary elements: a Best Management
Practices (BMPs) element and a Stormwater Pollution Prevention (SWPPP) element.
During reviews of facilities' Wastewater and Stormwater Management Plans, the following BMPs are occasionally
missing.
In addition to the BMPs listed in the generic permit, which
include specific BMPs for the Type I and Type II system components, the BMP
element of the Wastewater and Stormwater Management Plan must also include the
following information which prevents or minimizes the release of pollutants per
62-621.260 F.A.C. (see note below concerning this rule).
(a)
Material storage areas;
(b)
Plant site runoff;
(c)
In-plant transfer, process and material handling areas;
(d)
Loading and unloading operations; and
(e)
Sludge and waste disposal areas, to the surface waters of the state through
plant site runoff, spillage or leaks, sludge or waste disposal, or drainage
from raw material storage. The term “pollutants” refers to any substance listed
as toxic under Section 307(a)(1) of the Clean Water Act (Act); oil, as defined
in Section 311(a)(1) of the Act; and substances listed as hazardous under
Section 311 of the Act.
If these items are currently missing in your Wastewater and Stormwater Management Plan, please be
sure to include them since these will be reviewed during an inspection to
ensure compliance with the rule.
*Permit condition VIII.A.1 mentions 62.621.700 F.A.C. which
was repealed and replaced with 62.621.260.
Portable concrete batching plants use equipment to produce concrete and concrete products by batching or mixing cements and other materials. Equipment used at a concrete batching plant includes silos, weigh hoppers (batchers), conveyors, mixer engines and auxiliary generators.
A portable concrete batching plant may be eligible to operate as an air emissions source in Florida under the terms and conditions of an Air General Permit.
An optional Concrete Batching Plant Air General Permit Example Worksheet is available. Concrete batching plants are eligible to operate in Florida under the terms of an air general permit pursuant to the requirements of the applicable Florida Rule 62-210.310(5)(b) F.A.C.
Please contact the NWD Air Program at 850-595-8300 with any questions pertaining to the permitting of portable concrete batching plants.
http://www.dep.state.fl.us/air/emission/concrete.htm
|
