§ 30.04. Best Management Practices Plan for Silver Dischargers.
1.
Purpose and Intent.
(a)
The purpose of this section is to provide for the implementation of the Best Management Practices Plan (BMPP) for Silver Dischargers. The objectives of this section include:
(i)
To minimize the introduction of wastes containing silver into the City's wastewater system;
(ii)
To promote pollution prevention by generators of wastes containing silver;
(iii)
To require the installation and maintenance of equipment to achieve a level of treatment appropriate for the size of the generator (user); and
(iv)
To enable the City to comply with the effluent discharge standards set forth in the FDEP permits for the City's WRF's and the requirements for the Pretreatment Program.
(b)
The intent of this section is to provide for the control and regulation of users that discharge wastes containing silver to the POTW. Implementation of the BMPP for Silver Dischargers will allow the City to reduce the loadings of other constituents of concern to the POTW.
2.
General Criteria.
(a)
This section shall apply to all users of the POTW that generate wastes containing silver.
(b)
All users that generate wastes containing silver may be required by the Director of Public Works to comply with the guidelines set forth in the City's Best Management Practices Plan for Silver Dischargers.
(c)
All users that generate wastes containing silver may be required to implement a best management strategy to achieve a specific level of treatment (silver recovery or removal) as set forth in this section. This specific level of treatment (recovery or removal) shall depend on the volume of wastes that are generated by the user.
(d)
Significant industrial users (SIUs) shall comply with the local limit for silver set forth in Section 30.03(3)(b) of this Chapter. Significant industrial users shall obtain an industrial user discharger permit pursuant to Section 30.05 of this Chapter.
(e)
All users that generate wastes containing silver may be required by the Director of Public Works to prepare a Best Management Practices Plan (BMPP). The BMPP shall contain the elements that are listed in Section 30.03 (9) and (10) of this Chapter. An accidental discharge/slug control/spill containment plan shall be included in the BMPP by the user.
(f)
The user, as required by the Director of Public Works, shall develop and implement the BMPP within sixty (60) days of notification by the Director of Public Works; and shall exercise due diligence in pursuit thereof of the BMPP and maintenance of the silver recovery system.
(g)
Preparation and implementation of the BMPP by the user shall be done at the sole expense of the user.
3.
Off-Site Management.
(a)
Users that generate wastes containing silver may have these solutions transported by a certified hazardous waste hauler to an approved off-site facility for treatment, recovery and disposal.
(b)
The user shall provide containment for their holding tanks and shall maintain them to prevent spills and leakage.
(c)
Users that exercise this best management strategy shall retain and preserve the uniform hazardous waste manifests (as required by the U. S. Environmental Protection Agency) and other related documents in a file on-site for a minimum of three (3) years. The files shall be available for inspection by the Director of Public Works.
4.
On-Site Recovery and Management.
(a)
Users that generate wastes containing silver may be required by the Director of Public Works to obtain a registration certificate and to pretreat the wastes prior to discharge to the POTW.
(b)
The pretreatment equipment and recovery processes shall be designed to meet the minimum silver recovery (removal) levels set forth in this section.
(c)
The pretreatment equipment shall be operated and maintained properly at the sole expense of the user.
(d)
Monitoring taps shall be installed on the process influent and effluent lines for retrieval of representative samples to determine the efficiency of the pretreatment (recovery) processes.
(e)
Minimum recovery efficiency for the pretreatment (recovery) processes shall be based on the volume of wastes containing silver that are generated by the user. Minimum recovery efficiencies shall be:
(i)
Users that generate an average of less than two (2) gpd of silver-rich solutions and less than one thousand (1000) gpd of total process wastewater shall recover a minimum of 90% of the silver from the wastes.
(ii)
Users that generate an average of two (2) to twenty (20) gpd of silver-rich solutions and over one thousand (1,000) to ten thousand (10,000) gpd of total process wastewater shall recover a minimum of 95% of the silver from the wastes.
(iii)
Users that generate an average of more than twenty (20) gpd of silver-rich solutions and over ten thousand (10,000) gpd of total process wastewater shall recover a minimum of 99% of the silver from the wastes.
(f)
The recovery efficiency of the pretreatment (recovery) processes shall be determined at least once per week using silver test paper. Users that generate more that twenty (20) gpd of silver-rich solutions shall determine the recovery efficiency at least once every four (4) months by collecting one composite sample of the influent and effluent for analysis by a certified commercial laboratory using EPA/FDEP approved protocols.
5.
Recordkeeping.
(a)
The following records and documents shall be retained in a file on-site:
(i)
Volume of total process wastewater discharged to the City's collection system (POTW);
(ii)
A log of weekly monitoring results;
(iii)
Report of analyses from the commercial laboratory;
(iv)
Service and maintenance logs;
(v)
Uniform hazardous waste manifests; and
(vi)
Installation, operation and maintenance procedures.
(b)
The files shall be subject to the retention requirements set forth in Section 30.07(12) of this Chapter. The files shall be available for inspection and review by the Director of Public Works.
6.
Compliance Inspections and Monitoring. The Director of Public Works shall have the right to conduct compliance facility inspections and conduct random compliance monitoring as set forth in Section 30.08 of this Chapter.
7.
Enforcement. Users that do not comply with the provisions set forth in this section shall be subject to the administrative enforcement procedures and remedies set forth in Section 30.11 of this Chapter.
(Ord. of 6-12-2000, § 2, Doc. #33005; Ord. of 10-20-2008, § 1, Doc. #0810201101)