Statutes, codes, and regulations
Wyoming Administrative Code
Agency 020 - Environmental Quality, Dept. ofSubagency 0011 - Water QualityChapter 11 - DESIGN AND CONSTRUCTION STANDARDS FOR SEWERAGE SYSTEMS, TREATMENT WORKS, DISPOSAL SYSTEMS OR OTHER FACILITIES CAPABLE OF CAUSING OR CONTRIBUTING TO POLLUTION AND MOBILE HOME PARK AND CAMPGROUND SEWERAGE AND PUBLIC WATER SUPPLY DISTRIBUTION SYSTEMS
Part B - MUNICIPAL AND DOMESTIC SEWERAGE SYSTEMS, TREATMENT WORKS, AND DISPOSAL SYSTEM
Section 11-23 - Laboratory requirements

020-11 Wyo. Code R. § 11-23

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Current through April 27, 2019
Section 11-23 - Laboratory requirements

(a) Test procedures. Test procedures for analysis of monitoring samples shall conform to regulations published pursuant to Section 304(g) of the Federal Water Pollution Control Act ( 33 U.S.C. 466 et. seq.).

(b) Testing requirements. All treatment plants shall have capability to perform or contract for the self-monitoring analytical work required by discharge permits or ground water monitoring requirements. All plants shall in addition be capable of performing or contracting out the analytical work required to ensure good management and control of plant operation and performance. Plants operating under requirements of an industrial pretreatment program must have the capability of performing or must contract out the necessary testing to maintain the program as approved by the reviewing agency.

(c) Minimum requirements.

  • (i) Location and space. The laboratory shall be located away from vibrating machinery or equipment that might have adverse effects on the performance of laboratory instruments or the analyst and shall be designed to prevent adverse effects from vibration.

    A minimum of 400 square feet (37.2 m2) of floor space shall be provided for the laboratory where an analysis program for a fulltime laboratory chemist is proposed. If more than two persons will be working in the laboratory, 100 square feet (9.3 m2) of additional space shall be provided for each additional person.

  • (ii) Materials.
    • (A) Walls. Provide a durable, impervious surface that is easily cleaned.
    • (B) Doors. Two (2) exit doors or openings shall be located to permit a straight egress from the laboratory; one (1) exit shall be directly to outside of the building. Panic hardware shall be used. Interior doors shall have glass windows.
    • (C) Cabinets and bench tops. Cabinet and storage space shall be provided for dust-free storage of instruments and glassware.

      Bench top height shall be thirty-six (36) inches (0.91 m). Tops should be field joined into a continuous surface with acid, alkali, and solvent-resistant cements.
    • (D) Hoods. Fume hoods shall be provided where reflux or heating of toxic or hazardous materials is required.
      • (I) Fume hoods.
        • (1.) Location. A hood shall not be situated near a doorway, unless a secondary means of egress is provided.
        • (2.) Fixtures. All switches, electrical outlets, and utility and baffle adjustment handles shall be located outside the hood. Light fixtures shall be explosion proof.
        • (3.) Exhaust. Twenty-four (24) hour continuous exhaust capability shall be provided. Exhaust fans shall be explosion proof.
  • (iii) Sinks. The laboratory shall have a minimum of two (2) sinks per 400 ft (121.92 m) (not including cup sinks). Sinks shall be double-well with drainboards and shall be made of epoxy resin or plastic. All water fixtures shall be provided with reduced pressure zone backflow preventers. Traps constructed of glass, plastic, or lead and accessibility for cleaning shall be provided.
  • (iv) Ventilation and lighting. Laboratories shall be separately air conditioned, with external air supply for 100 percent makeup volume. Separate exhaust ventilation shall be provided. Ventilation outlet locations shall be remote from ventilation inlets. Lighting shall provide 100 foot-candles at the bench top.
  • (v) Gas and vacuum. If gas is required in the laboratory, natural gas shall be supplied. Digester gas shall not be used.
  • (vi) Water still. Distilled water shall conform to the Standard Methods for the Examination of Water and Wastewater, 15th Edition.
  • (vii) Emergency shower and eye wash. All laboratories shall be equipped with an emergency eye wash and shower.

(d) Portable testing equipment. Portable testing equipment shall be provided where necessary for operational control testing or industrial waste testing. Portable testing may be used for testing as necessary, provided the testing procedure meets the requirements of Section 304(g) of the Federal Water Pollution Control Act, if the results are to be used for permit reporting. Non-EPA certified procedures may be used for operational control or gross data generation.

020-11 Wyo. Code R. § 11-23

Amended, Eff. 6/29/2018.