[HISTORY: Adopted by the Board of County Commissioners of Calvert County as indicated in article histories. Amendments noted where applicable.]
[Adopted 9-22-1981 by Res. No. 44-81]
Unless the content specifically indicates otherwise, the meaning of terms used in these regulations shall be as follows:
- BIOLOGICAL OXYGEN DEMAND (abbreviated BOD)
- The quantity of oxygen expressed in milligrams per liter (mg/l) utilized in the biochemical oxidation of organic matter, during incubation at 20°C for a period of five days. The tests shall be made in accordance with standard laboratory procedures.
- CHEMICAL OXYGEN DEMAND (abbreviated COD)
- The quantity of oxygen expressed in mg/l utilized in the chemical oxidation of organic matter in accordance with standard laboratory procedures.
- Our individual qualified to conduct necessary chemical analysis.
- CHLORINE DEMAND
- The amount of chlorine which must be added to waters and wastes to produce a residual chlorine content in such waters and wastes after a fifteen-minute contact time.
- COMPOSITE SAMPLE
- A combination of individual samples of water or wastewater taken at selective intervals, generally hourly, for a specified time period, generally 24 hours, to minimize the effect of the individual sample variability.
- The government of Calvert County, Maryland.
- A professional engineer registered to practice in the State of Maryland.
- Solid wastes from the preparation, washing and dispensing of food, and from the handling, storage and sale of produce.
- HEXANE OR FREON SOLUBLE MATERIALS
- Fat, grease or oils extractable from wastes in accordance with standard laboratory procedures.
- A structure designed to provide access to the sewer for purposes of examination, cleaning, sampling or flow measurement.
- Milligrams per liter of wastewater, also referred to as parts per million by weight (ppm) or mg/l.
- Any individual, firm, company, association, society, corporation or group.
- The logarithm of the reciprocal of the weight of hydrogen ions in grams per liter of solution as measured by standard laboratory procedures.
- 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 a POTW.
- PROPERLY SHREDDED GARBAGE
- The wastes from the preparation, cooking dispensing of food that has been shredded to such a degree that all particles will be carried freely under the flow conditions normally prevailing in public sewers, with no particle greater than 1/2 inch (1.27 centimeters) in any dimension.
- PUBLIC SEWER
- The sewer owned, controlled or used by the county.
- PUBLICLY OWNED TREATMENT WORKS (ABBREVIATED POTW)
- Any sewage treatment works and the sewers and conveyance appurtenances discharging thereto, owned and operated by the county.
- SANITARY SEWER
- A sewer which carries wastewater and to which storm, surface and ground waters are not intentionally admitted.
- Any discharge of wastewater having a concentration of any
given constituent sufficiently above the average and for a period
to be considered by the Bureau of Utilities Chief, as harmful to the
collection system or the performance of the POTW.[Amended 5-28-2002 by Ord. No. 21-02]
- STANDARD LABORATORY PROCEDURE
- The procedures outlined in standard methods for the examination of water and wastewater, latest addition as published by the American Public Health Association, the American Water Works Association and the Water Pollution Control Federation.
- SUSPENDED SOLIDS
- Solids that either float on the surface of or are in suspension in water, wastewater or other liquids and which are removable by laboratory filtering under standard laboratory procedure.
- TOXIC SUBSTANCES
- Any substance gaseous, liquid or solid which when discharged to a sewer may tend to interfere with any waste treatment process, or to constitute a hazard to human beings or animals, or to inhibit aquatic life or to create a hazard to recreation in the receiving water of the effluent should this toxic substance pass through the treatment process from the wastewater treatment into which wastes may be discharged.
- A combination of the water-carried wastes from residences, business buildings, institutions, commercial and industrial establishments, together with such ground, surface and storm waters as may be present.
- WASTEWATER WORKS
- All facilities for collecting, pumping, treating and disposing of wastewater.
The words, "shall," "should" and "will" are always mandatory and not discretionary. The word "may" is permissive.
The following restrictions are applicable to users of all sewers a part of or tributary to Calvert County's sewer system. If, in the opinion of the Calvert County Water and Sewerage Division, there is evidence that a user is discharging any of the following prohibited wastes, the county may require the user, at the user's cost, to collect samples and have them analyzed by a qualified laboratory to determine if the discharge is within the limits of these regulations.
No person shall discharge or cause to be discharged into any sanitary sewer any of the following: stormwater; surface water; groundwater; roof runoff; subsurface drainage; cooling water; or unpolluted industrial or commercial process water.
The discharge into sanitary sewers of cooling water from air-conditioning units, three tons of refrigeration and larger, is prohibited.
Except as hereinafter provided, no person shall discharge or cause to be discharged any of the following described wastes or waters to any public sanitary sewer:
Any liquid or vapor having a temperature higher than 150° F. (65C.).
Free or emulsified Freon or hexane soluble materials that are not readily biodegradable shall be limited on analysis to an average of 50 mg/l of either or both. Where oil or greases are of the nature that they will solidify at temperatures of normal waste water and it is probable that they will collect in the sewer lines and contribute to the clogging or can overload skimming and grease handling equipment or interfere with the treatment process the following additional restrictions applicable shall be required.
Grease interceptors, as defined in the County Health Department Regulations and Plumbing Code, are required.
Routine servicing is required and records maintained of all grease removed and be available to the Bureau of Utilities Chief, at any time. These records shall be maintained and kept for the latest two year periods.
[Amended 5-28-2002 by Ord. No. 21-02]
Grease and/or oil must be taken to a suitable disposal site other than a County wastewater treatment facility and must not be mixed directly with any sanitary sewerage.
No grease and/or waste combined within any cook area or automotive service area is to be discharged into any county sanitary collection system. All grease and/or oil waste must be reprocessed by commercial reprocessors. Records of the number of pounds recycled will be maintained by the owners or operators and be readily available for the Bureau of Utilities Chief, at any time. These records shall be maintained and kept for the latest two year period. Grease and/or oil from private residences and others that handle less than 75 pounds per year (lbs/yr) must contain such material and dispose of such containers in appropriate landfills within Calvert County boundaries.
[Amended 5-28-2002 by Ord. No. 21-02]
Any liquids, solids or gases which by reason of their nature or quality may cause fire or explosion, or be in any other way injurious to persons, to the county's wastewater works or to the operation of these works.
Any noxious or malodorous gas or substance, which either singly or by interaction with other wastes is capable of creating a public nuisance or hazard of life preventing entry into sewer for their maintenance and repair.
Any garbage, other than that which has been properly shredded. The installation and operation of any garbage grinder equipped with a motor of 3/4 horsepower (0.76 hp metric) or greater shall be subject to the review and approval of the Bureau of Utilities Chief.
[Amended 5-28-2002 by Ord. No. 21-02]
Any ashes, cinders, sand, mud, straw, shavings metal, glass, bones, feathers, hair and fleshings and whole blood, rubber, tires, plastic, wood, paunch manure, butchers' offal or any other solids or viscous substances capable of causing obstruction to the flow in sewers or other interference with the proper operation of the county's wastewater works.
Any water or waste having a pH lower than 5.5 or higher than 10.0 or having any corrosive property capable of causing damage or hazards to structures, equipment or personnel of the county's wastewater works or affecting the biological treatment of the waste.
Any water or wastewater containing toxic substance in quantities which might be harmful or detrimental to the treatment process. The following substances are not permitted in concentration above those listed. By amendment to these regulations, restrictions may also be placed on other substances, or the present concentration limits revised, when it is known that the presence of these substances or concentrations at a treatment plant is sufficient to adversely affect any portion of the treatment process.
Radioactive materials shall not be discharged.
Any unusual volume of flow or concentration of waste constituting a slug.
Any waters or wastes containing substances which are not amenable to biological treatment or reduction by the sewage treatment processes employed, or are amenable only to such a degree that the wastewater treatment plant effluent cannot meet the requirements of other agencies having jurisdiction over discharge to receiving waters.
Excessive discoloration (such as, but not limited to, dye wastes and vegetable tanning solutions), such that the wastewater treatment plant effluent does not meet state or federal requirement.
A five-day 20° C. BOD greater than 300 mg/l.
A chemical oxygen demand greater than 500 mg/l.
A suspended solids content greater than 300 mg/l.
A chlorine demand greater than 25 mg/l.
Other wastes in such concentrations as may offer possibilities of harm to structures, processes, operation or capacity of the county's wastewater works.
Requirement of submitting plans and specifications for pretreatment.
Where pretreatment is required to conform to the requirement herein stated, plans and complete specifications for the proposed work shall be submitted to the Calvert County Water and Sewerage Division for review and approval.
All plans and specifications shall be prepared by and bear the seal of an engineer. Plans not conforming with these requirements will not be accepted.
Industrial waste questionnaire. Any person desiring to make a new connection to the county's wastewater works for the purpose of discharging industrial wastes shall fill in and file with the Calvert County Water end Sewerage Division an industrial waste questionnaire which shall furnish pertinent or predicted data including quantity of flow and analysis of the industrial waste to be discharged.
Sampling and analysis.
Samples shall be a twenty-four-hour composite sample so as to be a truly representative sample of the actual quality of wastes. Samples, for analysis, must be collected by an engineer, a chemist, their representative or authorized personnel of the Calvert County Water and Sewerage Division.
An analysis shall be made by a laboratory approved by the Calvert County Water and Sewerage Division, using the laboratory methods for the examination of industrial waste as set forth in the latest edition of Standard Methods for Examination of Water and Wastewater as published by the American Public Health Association.
Sampling schedules will be determined by the Calvert County Water and Sewerage Division and all sampling costs will be borne by the user.
Control manhole. A control manhole or manholes shall be constructed at suitable and satisfactory locations and be built in a manner approved by the Calvert County Water and Sewerage Division and shall be accessible to the Bureau of Utilities Chief or his representative at all times for sampling.
[Amended 5-28-2002 by Ord. No. 21-02]
Private water supply. Any user not connected to county water, or one who has other sources of water that may enter the county sewer system shall be required, at his expense, to meter the volume of sewage or the volume of noncounty water, for the purpose of computation of charges.
Wastes treated by other jurisdictions. Any wastes that are discharged into the Calvert County sewer, but are treated by another jurisdiction, shall be required to meet the requirements of § 110-2 relating to the safety of the collection systems and persons maintaining that system. However, the strength and character of the wastes will be governed by the laws of the treating jurisdiction.
Any person convicted of any violation of this article shall be fined for such violation in a sum of not less than $50 and not more than $100, and such other penalties as may be provided by law. For the purpose of this section, each day that a violation exists may be considered a separate offense.
In addition to the fine, any person convicted of any violation of this article may be assessed the cost of specific maintenance and operational procedures, work and materials required to restore the sewerage system to normal operations.
The Bureau of Utilities Chief, may bring proceedings in the Circuit Court of Maryland for the abatement of any condition violating this article, and the Circuit Court may, upon hearing and for good cause shown, enjoin the continuance of the condition violating this article, and levy fines and payment of cost, irrespective of all other remedies at law.
[Amended 5-28-2002 by Ord. No. 21-02]
[Added 10-30-1984 by Res. No. 56-84]
The size, slope, alignment, materials of construction of a building sewer and the methods to be used in excavating, placing of the pipe, jointing, testing and backfilling the trench shall all conform to the requirements of the building and plumbing codes or other applicable rules and regulations of Calvert County.
In the absence of code provisions or in amplification thereof, the material and procedures set forth in appropriate specifications of the ASTM and WPCF Manual of Practice No. 9 shall apply.
[Adopted 1-9-1990 by Res. No. 1-90]
As used in this article, the following terms shall have the meanings indicated:
- INDIVIDUAL SEWAGE DISPOSAL SYSTEM
- A single system of sewers and piping, treatment tanks or other facilities serving only a single parcel and disposing of sewage or individual wastes of a liquid nature, in whole or in part, on or in the soil of the property, into any waters of this state or by other methods.
- The state, a county, municipality, partnership, corporation, cooperative, company, sanitary district, sanitary commission, authority, institution or individual.
- The extension or relocation of a sewage disposal system or its appurtenances, additions to the system or any other action which changes the nature or configuration of a system.
- The replacement of any defective part or appurtenance of a sewage disposal system which does not alter the size or configuration of the systems and/or cleaning or reaming of any parts or appurtenances of such system intended to correct a malfunction or to improve the efficiency of operation of the system.
- SEWAGE DISPOSAL INSTALLER
- The holder of a sewage disposal system installer's license.
Sewage disposal installers.
No person shall construct, remodel or repair any individual sewage disposal system except under the supervision of a sewage disposal installer in possession of a valid license issued by the Health Officer for that purpose.
Applicants shall be required to pass a written and/or oral examination to indicate the applicant's knowledge of this article, the Code of Maryland Regulation (COMAR) 26.04.02. and applicable state laws and regulations.
License application; fees.
Any person desiring to obtain a license shall apply to the Health Officer on forms provided for that purpose by the Health Officer. No application shall be approved to a person whose license previously issued is under suspension or revocation, or who is not 21 years of age or who has not passed an examination.
Examinations shall be offered four times per year. The Board of Health shall adopt such procedures as may be necessary for the administration of said examinations.
A license fee of $100 shall be payable upon issuance of a license.
Any person engaging in the business of installation of individual sewage disposal systems shall post a performance bond for the amount of $10,000 with the Calvert County Board of Health.
License term; renewal fee.
Licenses shall be issued for a period not in excess of one year and shall expire on December 31 of each year, beginning December 31, 1990.
Licenses may be renewed without further examination upon payment of a fee of $100 within 30 days before the expiration date.
Bonds must be reposted for the amount of $10,000 within 30 days before the expiration date of said license.
The Health Officer or his designee may require reexamination prior to license renewal if it is determined that any or all prospective licensees need to demonstrate proficiency with current regulations and ordinances, is in the case of regulation changes and/or improved methodologies and technologies.
Any license issued pursuant to this article may be revoked or suspended by the Health Officer for violation of any provision of this article or failure to comply with the provisions of COMAR 26.04.02 after sanding a notice by certified mail to the address of the licensee listed on his application.
Any person whose license has been suspended or revoked, or who has been denied a license shall have a right to appeal the decision to the Board of Health. The decision to deny, revoke or suspend a license shall remain in effect until rescinded or modified by the Board of Health.
A hearing on the appeal shall be called by the Board of Health within 15 working days from the date of receipt of the appeal. The decision of the Board shall be stated in writing and sent to the address of the licensee by certified mail within 15 working days after the date of the hearing.
The Board decision to deny, suspend, or revoke license may be appealed in the Circuit Court. Any appeals from the Board of Health shall be taken to the Circuit Court within 30 calendar days of the sending of the notice of decision by the Board.
The Board of Health shall adopt written procedures covering conduct on hearing of appeals. Copies of these procedures shall be provided to the licensee with notice of any revocation or suspension.
Any person convicted of violating any provision of this article shall be guilty of a misdemeanor and shall be fined not less than $100 nor more than $200 for the first conviction, and for the second or subsequent conviction, such person shall be fined not less than $200 nor more than $500.