§ 94-17.  Specific Prohibited Wastes. 
No user shall discharge or deposit any of the following materials, waste materials, waste gases or liquids
into any sanitary sewer forming part of the County sewerage system:  
A.
Any liquids, solids or gases which, by reason of their nature or quantity, are or may be 
sufficient, either alone or by interaction with other substances, to cause fire or explosion 
or be injurious in any way to the County sewerage system or to the operation of the 
County sewerage system. At no time shall 2 successive readings (15 to 30 minutes 
between readings) on an explosion hazard meter at point of discharge into the County 
sewerage system be more than 5% nor any single reading be more than 10% of the lower 
explosive limit (LEL) of the meter. Prohibited materials covered by this subsection 
include, but are not limited to, gasoline, commercial solvents, toluene, xylene, peroxides, 
chlorates, per chlorates, bromates, carbides and hydrides.  
B.
Any noxious or malodorous solids, liquids or gases which, either singly or by interaction 
with other wastes, are capable of creating a public nuisance or hazard to life or are or may
be sufficient to prevent entry into a sewer for its maintenance and repair.  
C.
Any substances which may cause wastewater treatment plant effluent or any other 
products of the County sewerage system, such as residues, sludges, or scum, to be 
unsuitable for the reclamation process. In no case shall a substance discharged into the 
County sewerage system cause the system to be in noncompliance with sludge use or 
disposal criteria, guidelines, ordinance, or regulations developed by local, state or 
federal authorities.  
D.
Any substance which will cause the County sewerage system to violate its NPDES permit
or the receiving water quality standards established by the DEM, the EPA or any other 
governmental entity having jurisdiction.  
E.
Any water or wastes which, by interaction with other waters or wastes in the County 
sewerage system, release obnoxious gases, form suspended solids which interfere with 
operation of the sanitary sewers or create conditions deleterious to structures and 
treatment processes.  
F.
Any form of inflow, as defined by §94-3, including storm drainage.  
G.
Infiltration, as defined by §94-3, in excess of 300 gallons per inch of pipe diameter 
per mile of pipe per day.  
H.
Any unpolluted wastewater, as defined in §94-3, except as specifically permitted by 
the County.