A. 
General prohibitions. No user shall introduce or cause to be introduced into the POTW any pollutant or wastewater which causes pass-through or interference. These general prohibitions apply to all users of the POTW, whether or not they are subject to categorical pretreatment standards or any other national, state or local pretreatment standards or requirements.
B. 
Specific prohibitions. No user shall introduce or cause to be introduced into the POTW the following pollutants, substances or wastewater:
(1) 
Pollutants which create a fire or explosive hazard in the POTW, including but not limited to waste streams with a closed-cup flash point of less than 140° F. (60° C.) using the test methods specified in 40 CFR 261.21.
(2) 
Wastewater having a pH less than 6.0 or more than 9.0 or otherwise causing corrosive structural damage to the POTW or equipment.
(3) 
Solid or viscous substances in amounts which will cause obstruction of the flow in the POTW resulting in interference, but in no case solids greater than 1/2 inch in any dimension, animal guts or tissues, paunch manure, bones, hair, hides or fleshings, entrails, whole blood, feathers, ashes, cinders, sand, spent lime, stone or marble dust, metal, glass, straw, shavings, grass clippings, rags, spent grains, spent hops, wastepaper, wood, petroleum products (including plastics, gasoline, tar, asphalt residues, residues from refining or processing of fuel or lubricating oil), mud, glass grinding or polishing wastes.
(4) 
Pollutants, including oxygen-demanding pollutants (BOD, etc.), released in a discharge at a flow rate and/or pollutant concentration which, either singly or by interaction with other pollutants, will cause interference with the POTW; except, however, that in the case of conventional pollutants such discharge is permissible to the extent that it is in accordance with any enacted surcharge policy through which the discharger pays the AWTP for the treatment/removal of certain pollutants.
(5) 
Wastewater having a temperature greater than 120° F. or which will inhibit biological activity in the treatment plant resulting in interference, but in no case wastewater which causes the temperature at the introduction into the treatment plant to exceed 104° F. (40° C.).
(6) 
Petroleum oil, nonbiodegradable cutting oil or products of mineral oil origin, in amounts that will cause interference or pass-through.
(7) 
Pollutants which result in the presence of toxic gases, vapors or fumes within the POTW in a quantity that may cause acute worker health and safety problems.
(8) 
Trucked or hauled pollutants, except at discharge points designated by the Superintendent in accordance with § 122-11 of this Part 1.
(9) 
Noxious or malodorous liquids (including automobile antifreeze), gases, solids or other wastewater which, either singly or by interaction with other wastes, are sufficient to create a public nuisance or a hazard to life or to prevent entry into the sewers for maintenance or repair.
(10) 
Wastewater which imparts color which cannot be removed by the treatment process, such as, but not limited to, dye wastes and vegetable tanning solutions, which consequently imparts color to the treatment plant's effluent, thereby violating Ambler's NPDES permit.
(11) 
Wastewater containing any radioactive wastes or isotopes except in compliance with applicable state or federal regulations.
(12) 
Stormwater, surface water, groundwater, artesian well water, roof runoff, subsurface drainage, swimming pool drainage, condensate, deionized water, noncontact cooling water and unpolluted wastewater, unless specifically authorized by Ambler Wastewater Treatment Plant.
(13) 
Sludges, screenings or other residues from the pretreatment of industrial wastes.
(14) 
Medical wastes, except as specifically authorized by Ambler Wastewater Treatment Plant in a wastewater discharge permit.
(15) 
Wastewater causing, alone or in conjunction with other sources, the treatment plant's effluent to fail a toxicity test.
(16) 
Detergents, surface-active agents or other substances which may cause excessive foaming in the POTW.
(17) 
Fats, oils or greases of animal or vegetable origin in concentrations greater than are stated elsewhere herein.
(18) 
Wastewater causing two readings on an explosion hazard meter at the point of discharge into the POTW, or at any point in the POTW, of more than 5% or any single reading over 10%.
C. 
Pollutants, substances or wastewater prohibited by this section shall not be processed or stored in such a manner that they could be discharged to the POTW.
The categorical pretreatment standards found at 40 CFR Chapter I, Subchapter N, Parts 405-471, are hereby incorporated by reference as if set forth fully herein.
A. 
Where a categorical pretreatment standard is expressed only in terms of either the mass or the concentration of a pollutant in wastewater, Ambler Wastewater Treatment Plant may impose equivalent concentration or mass limits in accordance with 40 CFR 403.6(c).
B. 
When wastewater subject to a categorical pretreatment standard is mixed with wastewater not regulated by the same standard, Ambler Wastewater Treatment Plant shall impose an alternate limit using the combined waste stream formula in 40 CFR 403.6(e).
C. 
A user may obtain a variance from a categorical pretreatment standard if the user can prove, pursuant to the procedural and substantive provisions in 40 CFR 403.13, that factors relating to its discharge are fundamentally different from the factors considered by EPA when developing the categorical pretreatment standard.
D. 
A user may obtain a net gross adjustment to a categorical pretreatment standard in accordance with 40 CFR 403.15.
[Amended 2-6-1995 by Ord. No. 36-9; 12-18-2001 by Ord. No. 36-10; 6-5-2007 by Ord. No. 305]
A. 
The following pollutant limitations are established to protect against pass-through of pollutants to the Ambler Wastewater Treatment Plant. No person shall discharge wastewater containing pollutants in excess of the following:
[Amended 12-2-2014 by Ord. No. 155-9]
Toxic Pollutants
Limit
(mg/l)
Aluminum
14.51
Ammonia
No limit
Arsenic
0.19
Cadmium
0.02
Chromium (T)
6.01
Chromium, hexavalent
0.42
Copper
1.28
Cyanide (T)
0.36
Lead
0.32
Mercury
0.0009
Molybdenum
Monitor only
Nickel
2.16
Phenols
3.26
Selenium
0.13
Silver
0.96
Total Phosphorous
52.64
Zinc
1.55
B. 
The above limits apply at the point where the wastewater is discharged to the POTW, which for purposes of this Part 1 includes all points within and throughout the distribution system. All concentrations for metallic substances are for total metal unless indicated otherwise. Ambler Wastewater Treatment Plant may impose mass limitations in addition to, or in place of, the concentration-based limitations above.
C. 
Ambler, at its sole discretion, may develop best management practices (BMPs) to comply with 40 CFR 403.5(c)(l). Such BMPs shall be considered local limits and pretreatment standards for the purposes of 40 CFR 403 and Section 307(d) of the Clean Water Act[1] and can be implemented as wastewater discharge permit conditions. Ambler, also at its sole discretion, may allow a user to implement BMPs to meet the prohibitions found in 40 CFR 403.5(a)(l) and (b) and this Part 1.
[Added 4-3-2012 by Ord. No. 155-8]
[1]
Editor's Note: See 33 U.S.C. § 1317(d).
No user shall ever 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 a discharge limitation unless expressly authorized by an applicable pretreatment standard or requirement. Ambler Wastewater Treatment Plant may impose mass limitations on users who are using dilution to meet applicable pretreatment standards or requirements or in other cases when the imposition of mass limitations is appropriate.
A. 
Pretreatment facilities. Users shall provide wastewater treatment as necessary to comply with this Part 1 and shall comply with all categorical pretreatment standards, local limits and the prohibitions set out in § 122-3 of this Part 1 within the time limitations specified by EPA, the state or Ambler Wastewater Treatment Plant, whichever is more stringent. Any facilities necessary for compliance shall be provided, operated and maintained at the user's expense. Detailed plans describing such facilities and operating procedures shall be submitted to Ambler Wastewater Treatment Plant for review and shall be acceptable to Ambler Wastewater Treatment Plant before such facilities are constructed. The review of such plans and operating procedures shall in no way relieve the user from the responsibility of modifying such facilities as necessary to produce a discharge acceptable to Ambler Wastewater Treatment Plant under the provisions of this Part 1.
B. 
Additional pretreatment measures.
(1) 
Grease, oil and sand interceptors shall be provided when, in the opinion of Ambler Wastewater Treatment Plant, they are necessary for the proper handling of wastewater containing excessive amounts of grease and oil or sand, except that such interceptors shall not be required for residential users unless a residential user who is contributing excessive amounts of grease, oil or sand has first been given the opportunity to reduce the discharge by other means. All interception units shall be of type and capacity approved by Ambler Wastewater Treatment Plant and shall be so located to be easily accessible for cleaning and inspection. Such interceptors shall be inspected, cleaned and repaired regularly, as needed, by the user at its expense, in accordance with any procedure for the installation and maintenance of grease traps as may be established from time to time by the Ambler Wastewater Treatment Plant.
(2) 
Users with the potential to discharge flammable substances may be required to install and maintain an approved combustible gas detection meter.
[Amended 4-3-2012 by Ord. No. 155-8]
A. 
An accidental discharge/slug control plan, as prescribed under 40 CFR 403.8(f)(2)(vi), may be required:
(1) 
For all new sources/new users. Where required by Ambler, detailed plans showing facilities and operating procedures to provide protection from accidental discharges or slugs shall be submitted to Ambler for review and shall be approved by Ambler before construction of the facility.
(2) 
For existing sources/new users. Ambler shall evaluate whether each new user needs an accidental discharge/slug control plan within one year of the date of inclusion in the industrial pretreatment program.
(3) 
For existing sources/existing users. Ambler shall evaluate whether each user needs an accidental discharge/slug control plan on a routine basis.
B. 
If an accidental discharge/slug control plan is required, Ambler may require any user to develop, submit for approval, and implement such a plan. Alternatively, Ambler may develop such a plan for any user. An accidental discharge/slug control plan shall address, at a minimum, the following:
(1) 
Description of discharge practices, including nonroutine batch discharges;
(2) 
Description of stored chemicals;
(3) 
Procedures for immediately notifying Ambler of any accidental or slug discharge; and
(4) 
Procedures to prevent adverse impact from any accidental or slug discharge. Such procedures shall include, but are not limited to, inspection and maintenance of storage areas, handling and transfer of materials, loading and unloading operations, control of plant site runoff, worker training, building of containment structures or equipment, measures for containing toxic organic pollutants, including solvents, and/or measures and equipment for emergency response.
C. 
When an existing source is required by Ambler to provide and/or modify an accidental discharge/slug control plan, the user shall provide the plan within 60 days of notification. Should the plan require construction or implementation of measures to meet compliance, the plan shall provide a schedule for those actions. After initial review, should additional information be required to provide a complete plan, it shall be furnished to Ambler within 30 days. Failure to submit a revised plan and/or failure to provide a complete plan after the thirty-day submission period may render the wastewater discharge permit void.
D. 
Ambler's review and approval of such plans and operating procedures shall not relieve the user from the responsibility to modify the user's facility as necessary to meet the requirements of this Part.
E. 
If not specifically required by Ambler, the information, requirements, etc., called for in a plan are not waived by Ambler and the user shall, in its own and sole judgment, provide all necessary items, procedures, etc., to prevent any accidental discharge and/or slug discharge to the POTW.
F. 
All users are required to notify Ambler immediately of any changes at their facilities affecting the potential for an accidental discharge and/or slug discharge to the POTW. This requirement can be implemented as a wastewater discharge permit condition as necessary.
A. 
Septic tank waste may be introduced into the POTW only at locations designated by Ambler Wastewater Treatment Plant and at such times as are established by Ambler Wastewater Treatment Plant. Such waste shall not violate Article II of this Part 1 or any other requirements established by Ambler Wastewater Treatment Plant. Ambler Wastewater Treatment Plant may require septic tank waste haulers to obtain wastewater discharge permits.
B. 
Ambler Wastewater Treatment Plant shall require haulers of industrial waste to obtain wastewater discharge permits. Ambler Wastewater Treatment Plant may require generators of hauled industrial waste to obtain wastewater discharge permits. Ambler Wastewater Treatment Plant also may prohibit the disposal of hauled industrial waste. The discharge of hauled industrial waste is subject to all other requirements of this Part 1.
C. 
Industrial waste haulers may discharge loads only at locations designated by Ambler Wastewater Treatment Plant. No load may be discharged without prior consent of Ambler Wastewater Treatment Plant. Ambler Wastewater Treatment Plant may collect samples of each hauled load to ensure compliance with applicable standards. Ambler Wastewater Treatment Plant may require the industrial waste hauler to provide a waste analysis of any load prior to discharge.
D. 
Industrial waste haulers must provide a waste-tracking form for every load. This form shall include, at a minimum, the name and address of the industrial waste hauler, permit number, truck identification, names and addresses of sources of waste and volume and characteristics of waste. The form shall identify the type of industry, known or suspected waste constituents and whether any wastes are RCRA hazardous wastes.