(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.