127 



sediments by boat and wind-created turbulence in shallow waters. However, 

 samples collected in the bays within one or two days after a rainfall, particularly at 

 monitoring stations in shallow, confined areas with relatively low tidal flux such as 

 the Toms River, have been observed to have higher fecal coliform concentrations 

 than samples taken c urir g a dry period. These samples indicate that the stormwater 

 discharges adversely afi^ct the quality of bay water. Samples collected at ocean 

 monitoring stations have shown a similar effect, but the circulation and tidal 

 exchanges of ocean water disperses the stormwater discharged to the ocean more 

 quickly. The relatively rapid dispersion of the stormwater in the ocean reduces 

 effects of the stormwater discharge upon ocean water quality. 



3. Exceedance of 5WQS by 20% of samples 



Water quality problems may be present even when the geometric mean of fecal 

 coliform concentrations does not exceed the SWQS. For example, the geometric 

 mean of the concentrations in samples taken over the course of a season may be 

 below the SWQS even though a substantial percentage of the individual samples 

 taken during the season exceed the SWQS. Accordingly, if 20 percent of the samples 

 from a monitoring station exceed either the SWQS or the PCS, the DEPE and the 

 DOH will work with the appropriate local health agency to investigate whether a 

 water quality problem requiring investigation and remediation exists. Table 5 lists 

 the number of stations in each county for which more than 20 percent of the 

 samples exceed either the SWQS or the PCS. The table also lists the total number of 

 stations in each county. 



Table 5 



Ocean Monitoring Stations 



20% Exceeding SWQS/Total Stations 

 1990 1991 1992 



20°/o Exceeding PCS/Total Stations 

 1990 1991 1992 



Atlantic County 

 Cape May County 

 Monmouth County 

 Ocean County 

 State Total 



14/28 6/29 4/35 



4/59 1/59 0/59 



5/36 6/36 3/36 



7/50 3/50 4/50 



30/173 16/174 11/180 



1/28 0/29 0/35 



0/59 0/59 0/59 



0/36 2/36 1/36 



1/50 0/50 1/50 



2/173 2/174 2/180 



Bay Monitoring Stations 



20% Exceeding SWQS and PCS/Total Stations 

 1990 1991 1992 



Atl2mtic County 

 Cape May County 

 Monmouth County 

 Ocean County 

 Middlesex County 

 State Total 



6/15 2/15 2/15 



20/67 15/68 18/68 



13/27 13/27 12/27 



26/45 30/45 20/36 



2/5 1/5 



65/154 62/160 53/151 



