Those provisions listed in the Swimming Pool
Code of New Jersey (1970) that are specified below shall apply to
bathing places:
A.
Diving stands and board: Subsections 4.1, 4.3, 4.4,
and 4.5.
B.
Wading pool: Section 5.
C.
Dressing rooms and bathhouses: Section 10.
D.
Showers: Section 11.
E.
Toilets and lavatories: Section 12.
F.
Emergency equipment: Section 13.
G.
Supervision and maintenance: Section 14.
H.
Water depth requirement for diving purposes: Subsection
3.5.
Since the standard of safety for the waters
of outdoor bathing places cannot be stated in any absolute values,
the enforcing official must determine the relative safety by means
of:
A.
Collection of samples. Sampling shall be the responsibility
of the bathing beach director or operator. This includes maintenance
of field data, submission of samples to a laboratory and transmittal
of test reports to the Board.
(1)
Location. Samples of lake bathing waters shall be
taken at the inlet(s) and bathing areas. Samples shall also be obtained
at outlets when sufficient discharge is occurring. Additional samples
shall also be obtained at any critical points subject to known or
possible pollution from developments, individual dwellings, streams
or other sources.
(2)
Sampling frequency. A program of sampling shall be
instituted at least one week before Memorial Day and shall continue
at weekly intervals until the end of the bathing season.
(3)
Time of sampling. Whenever possible, samples shall
be obtained during or soon after peak bathing load periods.
(4)
Method of sampling. Samples shall be obtained at depths
representative of the body of water in use for bathing. Method of
sampling shall be in accordance with procedures stated in Standard
Methods for the Examination of Water and Wastewater, current edition.
(5)
Field data. Physical conditions noted at the time
of sampling shall be recorded on a suitable form, including sample
number, name of collector, source, location, time of sampling, water
and air temperature, wind direction and velocity, bathing load and
the possible effect of recent rainfall on bacteriological quality.
B.
Bacteriological examinations.
(1)
Laboratories. Bacteriological analyses of bathing
lake waters shall be made by laboratories acceptable to the State
Health Department. In addition, all laboratories doing such analyses
shall be thoroughly familiar with all requirements contained herein.
(2)
Number of portions and dilutions. Although the number
of portions and dilutions used will depend on the expected character
of the water, it is recommended that three portions at the following
dilutions be used: 10.0, 1.0 and 0.1 milligrams per liter.
(3)
Method of reporting. The number of positive findings
shall be reported in terms of most probable number per 100 milligrams
per liter (MPN per 100 milliliter).
(4)
Total bacteria determination. As an aid to interpretation
of the results, agar plate counts shall be made in accordance with
Standard Methods. One milliliter shall be planted on at least two
plates and the resultant counts averaged arithmetically.
(5)
Chemical analysis. pH values of every sample shall
be determined as an aid to interpretation of bacteriological results.
(6)
Physical analysis. Determination of turbidity, color
and odor should also be made as an aid to the interpretation of quality
of bathing lake waters. Such determinations shall be in accordance
with Standard Methods.
C.
Test results.
(1)
The minimum bacteriological standard of safety shall
be an average coliform index of 2,400 per 100 milliliters average
for a representative number of samples taken at one time and repeated
over a period of 24 hours. Should the analyses show a high bacteriological
content, the water shall be declared unsafe.
(2)
Bacteriological analyses showing an average coliform
index of 1,000 to 2,400 per 100 milliliters shall require the enforcing
official to evaluate carefully the condition of the bathing place
and the prior results of analyses to see if there has been a drastic
change in the condition of the water. He shall declare the water unsafe
if, in his judgment, there appears to be a health hazard.
(3)
Along with bacteriological analyses, the Health Official
shall inspect the condition of the bathing place. If conditions exist
which jeopardize the safe condition of the water or the health of
the public, he shall declare the bathing place unsafe.
Whenever a bathing place is declared unsafe
by an enforcing official or the waters of the bathing place are declared
unsafe, the operator, after official notification by the enforcing
official, shall close the facility to the public until such time as
it is again declared safe.
A.
Small flowing-through bathing places. Disinfection
is desirable to counteract pollution introduced by bathers. Hypochlorite
in solution may be added to the water inlet or at various points over
the water area. Chlorination of the water inlet may be continuous.
Several applications of disinfectant over the water area during the
bathing period are usually preferable to the one application. Even
with disinfection, the same governing factors should be considered
in arriving at maximum bathing loads in small outdoor places as presented
under "Swimming Pools"[1] and also the same limits for chlorine residuals are recommended
as for swimming pools.
B.
Large bodies of water. The disinfection of relatively
large bodies of water by use of a choloroboat is recommended. Bathing
areas several acres in area may be disinfected satisfactorily by the
use of extensive piping systems along the water bottom either for
distribution of chlorine disinfecting solutions or for distribution
of large volumes of pumped water drawn from the bathing area and disinfected
in the pump suction with chlorine or chlorine and ammonia in what
is practically a recirculation system. Where such disinfection is
feasible, the same contents of chlorine and chloramine residuals are
recommended as have been proposed for swimming pools. Chlorine and
ammonia are more practical for application with large outdoor bathing
areas. The use of disinfecting agents may be developed particularly
to guard against dangers from pollution by bathers themselves in the
densely populated bathing areas which are not subject to major water
changes through the action of tides and currents.
No person shall locate, construct or alter an
outdoor bathing place until the plans therefor shall have been approved
by the Board.
