Subtitle 5 – Pretreatment
Current through 2026-07-17. Source: City of Balt., Md., Ord. 26-129. Published by the Baltimore City Department of Legislative Reference.
Balt., Md., Code art. 25, § 5-1 (2026)
§ 5-1 In general.LinkCopy Citation
Users shall make wastewater acceptable under the limitations established by the permit before discharging to any public sanitary or combine sewer.
History: Ord. 84-129
History: Ord. 91-775
Balt., Md., Code art. 25, § 5-2 (2026)
§ 5-2 Pretreatment standards and requirements.LinkCopy Citation
All industrial users shall comply with:
(1)
the Federal General Pretreatment Regulations in 40 CFR Part 403;
(2)
the applicable national categorical pretreatment standards set out in 40 CFR Subchapter N, Parts 401 through 471 upon promulgation; and
(3)
all applicable federal, state, or local requirements or standards.
History: Ord. 91-775
Balt., Md., Code art. 25, § 5-3 (2026)
§ 5-3 Schedule of compliance.LinkCopy Citation
(a)When required.
If pretreatment or operation and maintenance changes will be required for an industrial user to comply with any provisions of <cite data-path="|25">this article</cite> or any state or federal pretreatment standard or requirement, the City may require the industrial user to submit for approval a schedule specifying the shortest time frame for the industry to achieve compliance.
(b)Tenor of schedule.
(1)
Such schedule may not extend the compliance date beyond applicable federal deadlines.
(2)
This schedule will contain increments of progress in the form of dates for the commencement and completion of major events, leading to the construction and operation of the additional pretreatment to bring the industrial user into compliance.
History: Ord. 91-775
Balt., Md., Code art. 25, § 5-4 (2026)
§ 5-4 Pretreatment facilities and operations.LinkCopy Citation
(a)Facilities at user’s expense.
Any facilities required to pretreat wastewater to a level in compliance with the limitations set by the permit shall be provided and maintained at the user’s expense.
(b)Director to approve plans, etc.
(1)
Plans, compliance schedules, and operating procedures shall be submitted to the Director for review, and shall be acceptable to the Director before construction of the facility.
(2)
The review of such plans and operating procedures will in no way relieve the user from the responsibility of modifying the facility as necessary to produce an effluent acceptable to the Director under the provisions of <cite data-path="|25">this article</cite> and the wastewater discharge permit.
(3)
Acceptance of plans and operating procedures does not constitute acceptance of the level of the treatment provided by such facilities and operations. Nor does the City thereby accept any responsibility for, or provide any guarantee as to, the performance of the facilities and operations.
(c)Changes.
(1)
Any subsequent changes in the pretreatment facilities or method of operation shall be reported to and be acceptable to the Director.
(2)
No user shall increase the use of process water or, in any way, attempt to dilute a discharge as a partial or complete substitute for adequate treatment to achieve compliance with any local, state, or federal discharge standard.
History: Ord. 84-129
History: Ord. 91-775
Balt., Md., Code art. 25, § 5-5 (2026)
§ 5-5 Public notice of significant violators.LinkCopy Citation
(a)“Significant noncompliance” defined.
“Significant noncompliance” means significant violations which meet the criteria as defined by federal general pretreatment regulations (40 CFR Part 403.8):
(1)
chronic violations of wastewater discharge limits, defined here as those in which 66% or more of all of the measurements taken during a 6-month period exceed (by any magnitude) the daily minimum limit or the average limit for the same pollutant parameter;
(2)
technical review criteria (“TRC”) violations, defined here as those in which 33% or more of all of the measurements for each pollutant parameter taken during a 6-month period equal or exceed the product of the daily maximum limit or the average limit multiplied by the applicable TRC (TRC = 1.4 for BOD, TSS, fats, oil, and grease, and 1.2 for all other pollutants except pH);
(3)
any other violation of a pretreatment effluent limit (daily maximum or longer-term average) that the Director determines has caused, alone or in combination with other discharges, interference or pass-through (including endangering the health of POTW personnel or the general public);
(4)
any discharge of a pollutant that has caused imminent endangerment to human health or welfare or to the environment or has resulted in the POTW’s exercise of its emergency authority to halt or prevent such a discharge;
(5)
failure to meet, within 90 days after the schedule date, a compliance schedule milestone contained in a local control mechanism or enforcement order for starting construction, completing construction, or attaining final compliance;
(6)
failure to provide, within 30 days after the due date, required reports such as baseline monitoring reports, 90-day compliance reports, periodic self-monitoring reports, and reports on compliance with compliance schedules;
(7)
failure to accurately report noncompliance; or
(8)
any other violation or violations which the Director determines will adversely affect the operation or implementation of the local pretreatment program.
(b)City to publish annual notice.
The City shall publish annually in the largest daily newspaper a list of industrial users which at any time during the previous 12 months were in significant noncompliance with applicable pretreatment requirements.
History: Ord. 84-129
History: Ord. 91-775