No person shall construct a new water well to supply a
Limited Use Public Water System unless a well construction permit has been
issued by the appropriate water management district or their delegated well
permitting agents, in accordance with Rule
62-532.400, F.A.C., and Chapter
40A-3, 40B-3, 40C-3, 40D-3, or 40E-3, F.A.C. All wells serving Limited Use
Public Water Systems must be constructed in accordance with Rule
62-532.500, F.A.C., and Chapter
40A-3, 40B-3, 40C-3, 40D-3, or 40E-3, F.A.C.
(1) To apply for new construction or
modification of a Limited Use Public Water System, an applicant must complete
Form DH 4092B, Application for Limited Use and Multifamily Water System
Construction Permit. Form DH 4092B, effective 9/07, is hereby adopted and
incorporated by reference, and can be obtained from the Department of Health,
Division of Environmental Health/Water Programs at: 4052 Bald Cypress Way, Bin
C22, Tallahassee, Florida 32399-1742, at
www.doh.state.fl.us/environment/water/manual/encl1.htm,
or from the County Health Department (CHD). The applicant must submit a
completed Form DH 4092B to the Department along with:
(a) Two (2) copies of a site plan and two (2)
copies of a construction plan. Each such plan shall be a minimum size of 8.5 x
11 inches and of sufficient clarity for reproduction.
(b) A $90 processing fee. For newly
constructed systems, this fee shall also serve as the annual operating permit
fee for the first year, or portion thereof, as described in Rule
64E-8.004,
F.A.C.
(2) Distances
between contaminant sources and potable water supply wells shall be maintained
as specified in subsection
62-532.400(7),
F.A.C., Water Well Permitting and Construction Requirements.
(a) Wells shall be located upgradient of
contaminant sources, unless sanitary or safety concerns prevent this
placement.
(b) Abandonment of wells
is required per Rule
62-532.440,
F.A.C.
(3) Water systems
shall be equipped with:
(a) A conveniently
accessible, non-threaded downward opening tap, located at least twelve (12)
inches above grade between the source and any storage or treatment
equipment.
(b) A working pressure
gauge.
(c) A six (6) foot by six
(6) foot by four (4) inch thick concrete apron centered around the
well.
(d) An aboveground check
valve between the raw water source tap and the disinfectant injection point
(for systems with chemical disinfection).
(e) A well vent as described in paragraph
62-555.320(8)(c),
F.A.C., for well pumps installed under a water system construction permit
issued by the Department on or after the effective date of this rule, unless
the criteria for exemption listed in that section are met.
(4) Systems shall be sized and designed as
follows, unless designed by a professional engineer:
(a) Calculate Peak Demand (PD) as follows:
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PD = (GPD/T) x 0.1 + IF, where:
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PD is Peak Demand in Gallons per minute (GPM)
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GPD is projected Gallons per day from Rule
64E-6.008, F.A.C., Table
I
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T is daily time of system operation in hours (Use
sixteen (16) for limited use community systems or facilities open ten (10) or
more hours per day; use eight (8) for all other facilities)
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IF is the Irrigation flow factor (Use five (5) if
site has lawn or landscaping; use zero (0) if site has none).
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(b)
Minimum storage tank size:
1. A hydropneumatic
tank shall be at least ten (10) times the PD. For a flexible diaphragm or
bladder tank, the amount of water delivered between pump shutdown and start
shall equal or exceed the PD. Therefore:
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Gross Storage Tank Volume
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no disinfection = PD x 10
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Drawdown Volume
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bladder tank = PD
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2.
Beginning on the effective date of this rule, where continuous disinfection is
required for groundwater supplied systems to remove confirmed microbiological
contamination, Table 1 shall be used to determine the minimum water contact
time and free chlorine residual concentration needed at various water
temperatures:
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Table 1: Minimum Free Chlorine
Residual (mg/L)
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Contact Time
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Water
Temperature1
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>=36°F
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>=41.0°F
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>=50.0°F
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>=59.0°F
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>=68.0°F
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>=77.0°F
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15 minutes
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NA
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NA
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NA
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2.7
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2.0
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1.4
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30 minutes
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3.5
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2.7
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2.0
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1.4
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1.0
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0.7
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45 minutes
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2.4
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1.8
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1.4
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0.9
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0.7
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0.5
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Table 1 Notes:
Above values are based on a water pH of no greater than 9.0
and a baffling factor of 0.1 (no baffling). Water temperature, pH and free
chlorine residuals are based on the water exiting the contact tank.
1 For initial design of
disinfection systems, use the coldest anticipated water temperature exiting the
contact tank.
a. Therefore, the
effective water contact volume for groundwater supplied systems shall be a
minimum of fifteen (15), thirty (30) or forty-five (45) times the PD (to
achieve a minimum water contact time of 15, 30 or 45 minutes with the
disinfectant at peak demand flow, based on Table 1 values).
b. The effective water contact volume in
hydropneumatic tanks shall be no more than 50% of the gross hydropneumatic tank
volume, therefore:
Gross Hydropneumatic Tank Volume = PD x Contact
Time/0.5
c. A flexible
diaphragm or bladder storage tank may not be used as a contact tank.
d. 100% of the volume of a second, airless
retention tank may be considered effective volume.
e. Influent and effluent contact tank piping
shall enter and exit at opposite ends of the longest tank
dimension.
(c)
Pump capacity shall be as large as the PD.
(d) Filtration to remove oxidation
precipitates shall be required if they invalidate microbiological
tests.
(e) Beginning on the
effective date of this rule, systems supplied by surface water or cisterns, and
systems supplied by groundwater where continuous disinfection is required but
is not designed according to Table 1 above, must be designed by a professional
engineer and must include treatment designed according to Chapters 3 and 4 of
the Guidance Manual for Compliance with the Filtration and Disinfection
Requirements for Public Water Systems Using Surface Water Sources, March 1991
Edition, available from the U.S. Environmental Protection Agency (EPA) at:
Office of Groundwater and Drinking Water (4601), Ariel Rios Building, 1200
Pennsylvania Avenue NW, Washington, DC 20460-0003, or
www.epa.gov/safewater/mdbp/implement.html.
All such plans must be reviewed and approved by the Department's Bureau of
Water Programs.
(5)
Piping:
(a) Inside pipe diameter size
requirements are as listed in Table 2, unless designed by a professional
engineer:
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Table 2: Minimum Water System Pipe
Size
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For GPM1 up to:
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Or length2 up to:
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Use pipe diameter:
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6
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50'
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1/2''
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10
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100'
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3/4''
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15
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200'
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1''
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25
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300'
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1 1/4''
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35
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400'
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1 1/2''
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60
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600'
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2''
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90
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800'
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2 1/2''
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125
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1,000'
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3''
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Table 2 Notes:
These figures prevent water velocity from exceeding six (6)
feet per second, and pressure loss from exceeding twenty (20) pounds per square
inch per one-hundred (100) feet of pipe at peak demand based upon Hazen &
Williams friction loss tables using constant = 150.
1 Use Gallons per minute flow from
Peak Demand calculation in subsection (4) above.
2 Distribution pipe lengths shall
be summed to find the length factor in column two.
(b) Potable water pipes shall be no closer
than five (5) feet horizontally to building sewer pipes and effluent
transmission lines of an onsite sewage treatment and disposal system (OSTDS) as
defined in Rule
64E-6.002, F.A.C. This
separation shall not apply where all portions of the bottom of the water pipe
within five (5) feet of the sewer pipe are a minimum of twelve (12) inches
above the top of the sewer pipe, or the water pipe is sealed with a waterproof
sealant within a sleeve of similar or stronger material pipe to a distance of
at least five (5) feet from the nearest portion of the sewer pipe.
(c) Potable water pipes shall meet all
separation requirements to sanitary or storm sewers, wastewater or stormwater
force mains, and reclaimed water pipelines as described in Rule
62-555.314, F.A.C.
(d) Potable water pipes shall be no closer
than ten (10) feet horizontally to an OSTDS unless such water pipes are sealed
with a waterproof sealant within a sleeve of similar or stronger material pipe
to a distance of at least ten (10) feet from the nearest portion of the OSTDS.
In no case shall the sleeved water pipe be located within twenty-four (24)
inches laterally of the OSTDS. Water pipes within five (5) feet of a drainfield
shall not be located at an elevation lower than the drainfield absorption
surface.
(e) Both new and
replacement pipes shall be no more than 8.0% lead, and new and replacement flux
or solders shall be no more than 0.2% lead.
(6) All equipment shall be installed and
operated in accordance with manufacturer's instructions and specifications.
Only food or water-grade chemicals, equipment and materials shall be used.
These items shall meet the standards of the U.S. Food and Drug Administration
under Title 21 of the Code of Federal Regulations (CFR) Parts 170-199, April 1,
2007; or meet the National Sanitation Foundation/American National Standards
Institute, NSF/ANSI Standard 60-2005, entitled Drinking Water Treatment
Chemicals - Health Effects, and NSF/ANSI Standard 61-2007, entitled Drinking
Water System Components - Health Effects, available from NSF International at
P. O. Box 130140, Ann Arbor, Michigan 48113-0140; or meet the standards of
another ANSI accredited testing and certification organization.
(7) The Department shall issue a permit to
construct or modify a Limited Use Public Water System provided that:
(a) All items in subsection (1), above, have
been submitted.
(b) All submitted
plans and application materials meet the criteria listed in subsections (2)
through (6), above.
(c) The
Department has performed a sanitary survey and has verified that the actual
site conditions are as indicated on the submitted plans and application
materials and meet the criteria listed in subsection (2),
above.
(8) Water system
construction or modification permits are valid for eighteen (18) months. An
extension of time to complete construction or modification shall be granted for
a period of ninety (90) days if the Department receives a written request from
the applicant prior to expiration of the construction permit and the conditions
under which the original construction permit was granted have not
changed.
(9) Upon completion of
water system construction or modification, the applicant shall perform a water
quality clearance as follows:
(a)
Microbiological analysis of five (5) source water samples:
1. One (1) source water sample shall be
collected per day for five (5) days within a period of twenty-three (23)
consecutive days. Collection of two (2) samples per day is permitted if
collected six (6) hours apart and the pump is run at rated capacity for at
least fifteen (15) minutes before each collection.
2. No more than one (1) of these five (5)
samples and neither of the last two of these samples shall reveal the presence
of coliform bacteria.
(b)
One (1) microbiological analysis of a remote distribution water sample per day
for two (2) consecutive days.
(c)
One (1) Lead analysis of a first draw water sample collected from an indoor tap
after the water has been undisturbed in the plumbing for at least six (6)
hours.
(d) One (1) Nitrate (Nitrate
as N) analysis of a source water sample.
(e) Any analyses required per subsection
64E-8.006(4),
or Rule
64E-8.007, F.A.C.
The results of such analyses shall not exceed the Maximum
Contaminant Levels (MCL) or Health Advisory Levels (HAL) listed in subsection
64E-8.006(2),
F.A.C.
(10) To
obtain approval to place a new or modified Limited Use Public Water System into
service, the applicant must submit a completed Form DH 4092A, Application for
Limited Use Public Water System Operation, and obtain either an annual
operating permit, or a Registration exemption as described in subsection
64E-8.004(5),
F.A.C. Form DH 4092A, effective 9/07, is hereby adopted and incorporated by
reference, and can be obtained from the Department of Health, Division of
Environmental Health/Water Programs at: 4052 Bald Cypress Way, Bin #C22,
Tallahassee, Florida 32399-1742, at
www.doh.state.fl.us/environment/water/manual/encl1.htm,
or from the CHD.
(a) The Department shall then
issue an annual operating permit or a Registration provided that:
1. The Department has inspected the system
and has verified that it was constructed according to the approved plans, in
compliance with this section, and meets the operating and maintenance standards
of Rule
64E-8.005, F.A.C.
2. Satisfactory results of the analyses
listed in subsection (9), above, have been submitted.
3. A copy of the well completion report
prepared per Rule
62-532.410, F.A.C., has been
submitted.
(b) If
deficiencies are found, written notice shall be provided to the applicant by
the Department. Deficiencies shall be corrected within ninety (90) days of the
expiration date of the construction or modification permit, unless a time
extension is granted in writing by the Department.
(c) Re-inspection requests must be
accompanied by a $40 fee.
