Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 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

Current through July 13, 2024
(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.