A. 
Words in the present tense include the future. The singular number includes the plural number. The plural number includes the singular number. The work "shall" is mandatory, while the word "may" is permissive.
B. 
Unless the context specifically indicates otherwise, the following terms and phrases, as used in this Part 9, shall have the meanings hereinafter designated.
ACT
The Federal Water Pollution Control Act, as amended, also known as the "Clean Water Act."
APPROVAL AUTHORITY
The Administrator or the Regional Administrator of EPA.
AUTHORIZED REPRESENTATIVE OF USER
An authorized representative of a user is:
(1) 
A principal executive officer of at least the level of vice president, if the user is a corporation.
(2) 
A general partner or proprietor if the user is a partnership or proprietorship, respectively.
(3) 
A principal executive officer or a person having responsibility for the overall operation on the user's facility if the user is a governmental body, unincorporated organization or other similar entity.
(4) 
A duly authorized representative of the individual designated in Subsections (1) through (3) above if:
(a) 
The authorization is made in writing by the individual described in Subsection (1) or (2).
(b) 
The authorization specifies either an individual or a position having overall responsibility for the overall operation of the facility from which the industrial discharge originates, such as the position of plant manager, or a position of equivalent responsibility, or having overall responsibility for environmental matters for the company.
(c) 
The written authorization is submitted to DARA and the Township.
AVERAGE DAILY FLOW
The wastewater discharge volume from the most recent calendar quarter divided by the number of calendar days in that quarter.
BIOCHEMICAL OXYGEN DEMAND (BOD)
The quantity of oxygen, expressed in milligrams per liter (mg/L), utilized in the biochemical oxidation of organic matter under standard laboratory procedure in five days at 20° C. The standard laboratory procedure shall be found in the latest edition of "Standard Methods for the Examination of Water and Wastewater" published by the American Public Health Association.
BYPASS
The intentional diversion of waste streams from any portion of an industrial user's facility for pretreatment.
CATEGORICAL INDUSTRY
Any industry subject to pretreatment standards as specified in 40 CFR, Chapter I, Subchapter N, establishing quantities or concentrations of pollutants or pollutant properties which may be discharged or introduced to a treatment plant by existing or new industrial users in specific industrial subcategories.
CATEGORICAL STANDARDS
National Categorical Pretreatment Standards.
CHEMICAL OXYGEN DEMAND (COD)
The quantity of oxygen, expressed in mg/L, required to chemically oxidize the organic and inorganic matter in a water or wastewater sample under the standard laboratory procedure. The standard laboratory procedure shall be that in the latest edition of "Standard Methods for the Examination of Water and Wastewater" published by the American Public Health Association.
COMPATIBLE POLLUTANT
BOD, COD, total suspended solids, total Kjeldahl nitrogen, total phosphorus and fecal coliform bacteria.
DARA
Downingtown Area Regional Authority, a municipal authority of the Commonwealth of Pennsylvania.
DISCHARGE PERMIT
A permit issued by DARA authorizing the discharge of tank truck or hauled waste at the DRWPCC.
DRWPCC
The Downingtown Regional Water Pollution Control Center. The facilities in East Caln Township treating wastewater pursuant to the Intermunicipal Agreement among DARA, the Borough of Downingtown and the Townships of Caln, East Caln, Uwchlan and West Whiteland.
ENGINEER
West Whiteland Township's or DARAs consulting engineer, as appropriate.
EPA
The United States Environmental Protection Agency, including where appropriate, the administrator or other duly authorized official of said agency.
EXECUTIVE DIRECTOR
The DARA Executive Director.
GARBAGE
Solid wastes from the domestic and commercial preparation, cooking and dispensing of food and from the commercial handling, storage and sale of produce.
GRAB SAMPLE
An individual sample collected over a period of time not exceeding 15 minutes.
INDUSTRIAL USER
Any person discharging industrial wastewater to the sewerage system.
INDUSTRIAL WASTE DISCHARGE PERMIT
A permit authorizing a person to deposit or discharge industrial wastewater into the sewerage system.
INDUSTRIAL WASTEWATER
Any water which, during a manufacturing or processing operation, including those regulated under Section 307(b), (c) or (d) of the Act, comes into direct contact with or results from the production or use of any raw material, intermediate product, finished product, by-product or waste product or any other water contaminated by an industrial process and distinct from sanitary sewage.
INTERFERENCE
The inhibition or disruption of the DRWPCC processes or operations which contributes to a violation of any requirement of DARAs NPDES permit or a decrease in treatment efficiency. The term includes inhibition or disruption of sewage sludge use or disposal from the DRWPCC in accordance with Section 405 of the Act (33 U.S.C. § 1317) or any criteria, guidelines or regulations developed pursuant to the Solid Waste Disposal Act (SWDA), the Clean Air Act, the Toxic Substances Control Act or more stringent state criteria (including those contained in any state sludge management plan prepared pursuant to Title IV of SWDA) applicable to the method of disposal or use employed by the DRWPCC.
LOCAL DISCHARGE LIMITS
Numerical limitations on the concentration, mass or other characteristics of wastes or pollutants discharged to the sewerage system by industrial users and which are developed and/or promulgated by DARA or the Township.
MILLIGRAMS PER LITER (mg/L)
The ratio of weight to volume expressing the concentration of a specified component in a wastewater. Also known as parts per million (PPM).
MUNICIPALITY or MUNICIPAL
The DARA member or political subdivision where a user is located or connected or where wastewater is discharged.
NATIONAL CATEGORICAL PRETREATMENT STANDARD
Any regulation containing pollutant discharge limits promulgated by the EPA in accordance with Section 307(b) and (c) of the Act (33 U.S.C. § 1317) and which are defined in 40 CFR, Chapter I, Subchapter N, Parts 405 through 471.
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM PERMIT (NPDES permit)
A permit issued pursuant to Section 402 of the Act (33 U.S.C. § 1342).
NATIONAL PROHIBITED DISCHARGE STANDARD or PROHIBITED DISCHARGE
Any regulation developed under the authority of 40 CFR 403.5.
NEW SOURCE
Any building, structure, facility or installation for which there is or may be a discharge of pollutants, the construction of which commenced after the publication of proposed categorical standards under Section 307(c) of the Act which will be applicable to such source if such categorical standards are thereafter promulgated in accordance with that section. Determination of the applicability of new source standards shall be made as provided in the Act and 40 CFR 403.3.
OWNER
Any person vested with ownership, legal or equitable, sole or partial of any property, or his agent.
PASS-THROUGH
Discharge through the DRWPCC which exists in quantities or concentrations, alone or with discharges from other sources, which causes a violation of any condition of DARAs NPDES permit or a discharge that is unaffected by the treatment process.
PENNSYLVANIA DEPARTMENT OF ENVIRONMENTAL PROTECTION (PADEP)
The Department of Environmental Protection of the Commonwealth of Pennsylvania, or any department or agency of the Commonwealth succeeding to the existing jurisdiction or responsibility of the Department of Environmental Protection.
PERSON
Any individual, firm, company, partnership, corporation, association, group or society, including the state and agencies, districts, commissions and political subdivision created by or pursuant to state law and federal agencies, departments or instrumentalities thereof.
pH
The logarithm of the reciprocal of the hydrogen ion concentration expressed as moles per liter.
POLLUTANT
Any dredged spoil, solid waste, incinerator residue, sewage, sewage sludge, garbage, munitions, chemical wastes, biological materials, radioactive materials, heat, wrecked or discarded equipment, rock, sand, cellar dirt and industrial, municipal and agricultural waste discharged into water of the sewerage system.
PRETREATMENT
The reduction of the amount of pollutants, the elimination of pollutants or the alteration of the nature of pollutant properties in wastewater to a less harmful state prior to or in lieu of discharging or otherwise introducing such pollutants into the sewerage system. The reduction or alteration may be obtained by physical, chemical or biological processes, process changes or by other means, except as prohibited by 40 CFR 403.6(d).
PRETREATMENT REQUIREMENT
Any substantive or procedural requirement related to pretreatment, other than a National Categorical Pretreatment Standard, imposed on an industrial user.
PRETREATMENT STANDARD
Any regulation containing pollutant discharge limits promulgated by the EPA in accordance with Section 307(b) and (c) of the Act, which applies to industrial users. This term includes National Categorical Pretreatment Standards, prohibited discharge limits and local discharge limits.
QUALIFIED PROFESSIONAL
Pennsylvania-registered professional engineer skilled in the field of wastewater treatment and operations.
SANITARY SEWAGE or SEWAGE
The normal water borne waste from a household and toilet, sink, shower and plumbing fixture wastes from residences, business buildings, institutions, commercial and industrial establishments, but excluding industrial wastes.
SEWERAGE SYSTEM
The DRWPCC and any pipe, conduit or other equipment which carries wastewater to the DRWPCC, including the municipal sewage collection system.
SIGNIFICANT INDUSTRIAL USER
Any industrial user that:
(1) 
Is subject to National Categorical Pretreatment Standards.
(2) 
Discharges 10,000 gallons or more per day of industrial wastewater.
(3) 
Contributes a waste stream which makes up 5% or more of the dry weather compatible pollutant capacity of the DRWPCC.
(4) 
Has a reasonable potential, as determined by DARA, DEP or EPA, to adversely affect the DRWPCC by interference, pass-through of pollutants, sludge contaminations, to endanger collection systems and DRWPCC personnel or to violate any applicable pretreatment standard.
SIGNIFICANT NONCOMPLIANCE (SNC)
An industrial user is in significant noncompliance if its violation(s) meet one or more of the following criteria as determined by DARA and/or the Township.
(1) 
Chronic violations of wastewater discharge limits, defined as those in which 66% or more of all the measurements taken during a six-month period exceed (by any magnitude) the daily maximum limit or the average limit for the same parameter measured.
(2) 
Technical review criteria (TRC) violations, defined as those violations in which 33% or more of all of the measurements for each parameter measured taken during a six-month period equal or exceed the product of the daily average maximum limit or the average limit times the applicable TRC multiplier (TRC multiplier equals 1.4 for BOD and TSS, and 1.2 for all other pollutants with numerical limits, except pH).
(3) 
Any other violation of a pretreatment standard or requirement (daily maximum or longer-term average) that DARA determines has caused, alone or in combination with other discharges, an interference or pass-through at DRWPCC or has caused an interference in the Township collection systems.
(4) 
Any discharge of a pollutant that caused imminent endangerment to the health of DRWPCC or Township personnel, the environment or the general public or has resulted in DARA exercising any emergency authority to halt or prevent such a discharge.
(5) 
Failure to meet, within 90 days after the scheduled date, a compliance schedule date or a compliance schedule milestone contained in the user's industrial waste discharge permit or enforcement action 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, ninety-day compliance reports, periodic self-monitoring reports and reports on compliance with compliance schedules.
(7) 
Failure to accurately report incidents of noncompliance.
(8) 
Any other violation or group of violations that DARA determines will adversely affect the overall implementation of its industrial pretreatment program.
SLUG CONTROL PLAN
A report prepared by an individual user and provided to DARA and Township in accordance with this Part 9 which details the existing and proposed facility plans and operating procedures to be followed by that user in the event of a slug load.
SLUG LOAD
Any discharge of wastewater of a nonroutine or episodic nature including, but not limited to, an accidental spill or noncustomary batch discharge at a flow rate or concentration that may cause a violation of any pretreatment requirement or pretreatment standard set forth in this Part 9.
STANDARD INDUSTRIAL CLASSIFICATION (SIC)
A classification pursuant to the latest Standard Industrial Classification Manual issued by the Executive Office of the President, Office of Management and Budget.
STANDARD METHODS
The latest edition of "Standard Methods for the Examination of Water and Wastewater," a manual published by the American Public Health Association specifying analytical procedures for testing and analysis of wastewater.
STATE
Commonwealth of Pennsylvania.
STORMWATER
Any flow occurring during or following any form of natural precipitation and resulting exclusively therefrom.
SURCHARGE
An additional charge for the conveyance and/or treatment of extra-strength wastewater in excess of the basic charge for treatment of wastewater.
TOTAL KJELDAHL NITROGEN (TKN)
The sum of the organic nitrogen and ammonia nitrogen present in wastewater, as measured by standard laboratory procedure as described in standard methods.
TOTAL SUSPENDED SOLIDS (TSS)
The total suspended matter that either floats on the surface of, or is in suspension in, water or wastewater and is removable by laboratory filtration as prescribed in standard methods
TOWNSHIP
The Township of West Whiteland.
TWENTY-FOUR HOUSE COMPOSITE SAMPLE
A sample that is collected over time, formed either by continuous sampling or by mixing discrete samples collected at regular intervals not exceeding one hour, during a twenty-four-hour time span. The sample may be composed either as a time composite sample (composed of discrete sample aliquots collected in one container at constant time intervals providing representative samples irrespective of discharge flow) or as a flow proportional composite sample (collected either as a constant sample volume at time intervals proportional to stream flow or collected by increasing the volume of each aliquot as the flow increases while maintaining a constant time interval between aliquots).
USER
Any person who contributes wastewater into the sewerage system.
WASTEWATER
The combined flow of sanitary sewage and industrial wastewater, together with such quantities of infiltration and inflow as may be present.