Title: 17-3.403 Classification of Gound Water, Usage, Reclassification
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 Material Information
Title: 17-3.403 Classification of Gound Water, Usage, Reclassification
Physical Description: Book
Language: English
 Subjects
Spatial Coverage: North America -- United States of America -- Florida
 Notes
Abstract: 17-3.403 Classification of Gound Water, Usage, Reclassification
General Note: Box 7, Folder 1 ( Vail Conference 1987 - 1987 ), Item 56
Funding: Digitized by the Legal Technology Institute in the Levin College of Law at the University of Florida.
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Bibliographic ID: WL00000663
Volume ID: VID00001
Source Institution: Levin College of Law, University of Florida
Holding Location: Levin College of Law, University of Florida
Rights Management: All rights reserved by the source institution and holding location.

Full Text

1 17-3.403 Classification of Ground Water, Usage,

2 Reclassification.

3 (1) All ground water of the State is classified according

4 to designated uses as follows:

5 CLASS G-I Potable water use, ground water in single

6 seeree aquifers which has a total dissolved

7 solids content of less than 3,000 mg/l in an

8 4--unconfined or leaky confined aquifer, and is

9 restricted to zones of protection around major

10 public community drinking water supplies, and

11 has been reclassified as G-I by the Commission.

12 CLASS G-II Potable water use, ground water in aquifers

13 which has a total dissolved solids content of

14 less than 10,000 mg/l, unless otherwise

15 classified by the Commission.

<-6 CLASS G-III Non-potable water use, ground water in

17 unconfined aquifers which has a total dissolved

18 solids content of 10,000 mg/l or greater, or

19 which has total dissolved solids of 3,000 -

20 10,000 mg/l and either has been reclassified by

21 the Commission as having no reasonable potential

22 as a future source of drinking water, or has

23 been designated by the Department as an exempted

24 aquifer pursuant to Section 17-28.13(3), F.A.C.

25 CLASS G-IV Non-potable water use, ground water in confined

26 aquifers which has a total dissolved solids

27 content of 10,000 mg/l or greater.
28 (2) The intent of establishing G-I eligibility criteria is

f0'3 to determine which aquifer or aquifer segments qualify for

30 potential reclassification to G-I aquifers. Adoption of these

31 criteria does not imply nor does it designate aquifer or aquifer

Y. 16





1 segments as G-I. Such designation can only be achieved through

2 reclassification by the Commission after eligible segments

r-3 have been mapped by the Department. It-shall-be-e- -Bepartment

4 peoiey-te-affeod-the-highest-preteetion-te-single-seeree

5 aquifers9--Upen-pettin-by-an-affeeted-parfy-as-prevtded-tn

6 sbsee tien-+6+7-the-eemmissen-may-reelasstfy-aqtifers-er

7 peotifes-e9 -aqutter9-as-eass-9-6-i-gepon-waterr

8 (3) through (4) No change.

9 (5) Reclassification of ground water as provided in

10 subsection (1) above shall be accomplished in the following

11 manner:

12 (a) Any substantially affected person or water management

13 district may seek reclassification of any ground water of the

14 State by filing a petition with the Secretary in the form required

15 by Section 17-103.040, 3i-1r747 F.A.C. However, reclassification

[ 56 to G-I shall follow the procedures in 6(e) below. In addition, the

17 Department, on its own initiative or at the direction of the

18 Commission, may seek any reclassification by initiating rulemaking

19 pursuant to Section 17-102.010, -1-Te967 F.A.C.

20 (5)(b) through (d) No change.

21 (6) In addition to the procedures in subsection (5) above,

22 the following procedure shall be used to designate Class G-I

23 sngie-seoee aquifers:

24 (a) Rulemaking procedures pursuant to Chapter 17-102,

25 F9-.T F.A.C., shall be followed;

26 (b) Ab-eeast-ene FEact-finding workshops shall be held in

27 the affected area;

28 (c) All local, county or municipal governments, water

19 management districts, and state legislators, regional water supply

30 authorities, and regional planning councils whose districts or

31 jurisdictions include all or part of a proposed G-I single-soree
L.i7





1 aquifer shall be notified in writing by the Department Seerefary

2 at least 60 days prior to the workshop;

3 (d) A prominent public notice shall be placed in an

4 appropriate a newspapers )-or-nfewspapers-i--a--eare-rea-i-s

5 prepesed-fer-designatieon of general circulation in the area of

6 the proposed G-I single-seeree aquifer at least 60 days prior

7 to the workshop. The notice shall contain a geographic location

8 map indicating the area of the proposed zones of protection and a

9 general description of the impact of reclassification on present

10 and future discharges to ground water. A notice of a G-I workshop

11 shall be published in the Florida Administrative Weekly prior to

12 the workshopss;

13 (e) The Commission may reclassify an aquifer or aquifer

14 segment as a G-I aquifer within specified boundaries upon

15 consideration of environmental, technological, water quality,

O"SN institutional (including local land use comprehensive plans),

17 public health, public interest, social and economic factors. When

18 considering a reclassification an aquifer or aquifer segment

19 shall:

20 1. Meet at least one of the criteria listed in Section

21 17-3.403(7), F.A.C. below to be eligible as a Class G-I aquifer,

22 and

23 2. Be specifically mapped and delineated by the Department

24 on a detailed map of a scale which would clearly depict the

25 applicable zones of protection. Maps will be grouped and

26 submitted for reclassification generally on a regional basis.

27 a. Mapping priorities shall follow the Commission directive

28 of February 27, 1985.

S) b. The remaining areas of the state will be mapped by the

30 Department as time and resources allow.

31 +et-- he-eemmiassen-may-reelassify-an-atfeie-er-pertto
vf. /`





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a well pursuant to Rule 17-21, F.A.C., or a change of 25 percent

in the permitted average daily pumping rate. Such changes in the


zones of protection shall follow the rulemaking requirements as

described in (5)(a) through (6)(e) above. Zones of protection may

be established for newly approved/permitted well(s) or

wellfields(s), after the entire state has been mapped, by

following the rulemaking procedures described in (5)(a) through

(6)(e) above, except that new well(s) or wellfield(s) shall not

cause certain planned facilities to become subject to G-I


requirements or prohibitions. For the purpose of paragraph (f), a

planned facility shall be limited to:

1. The site of an electric power generating facility

included in a 10-year site plan submitted to and classified as

suitable by the Florida Department of Community Affairs prior to

ground water reclassification to G-I, and still in effect at the

time of reclassification.

2. Any development for which a development order, pursuant

to Sections 380.06 or 380.061, F.S., has been issued prior to

ground water reclassification to G-I, and still in effect at the

time of reclassification.

L7/9 __


of-an-aqfer-as-as-a-sngle-seree-aqfer-wvthin-specified

beandartes-pen-the-affi mative-fiti dng-thaet

T--Phe-aqutfer-r-pertion-of-the-aqtfer-sa-the-enly

reasenably-available-seateee-ef-peetabe-water-te-a-snfieante

segment-ef-tehe-populateon-an

7--The-designated-ese-ts-atteanableT-spen-eensideration

ef-envireementa7-teeheoegieal7-water-qality7-*natitutionaa7

and-seeiei-aend-eeeneme-feeeafs-

(f) The Department, with approval from the Commission, may.

change the zones of protection based on reconfiguration of a

wellfield. changes in the depth of the well. nrnnar ahantnnmpnl nf


I




1 +f+--When-mak ing-tkhe-~fi~ndng-requred-by-sabparagraph

2 +e+7-the-eemmisseon-must-specfteally-eeosnder7y-pon

3 preseentaten-ef-any-eempetent-evidence-at-the-hearingy-the

4 feloewing-

5 Te--ether-seetees-ef-petable-water-whieh-eeuld-be-esed

6 and-the-eests-ef-develep-ng-these-souree9s-and

7 2r--he-leng-term-adequaey-f-he-end-wae-aq e-te

8 supply-expeeted-~ftare-demands-if-ether-seerees-are-net

9 develepedy-atd

10 3r--Petential-adverse-effeets-from-eenttneed-eoefsmpti4o

11 .ef-water-frem-the-aqatfer-if-6S--elassifieation-dees-net-eeery

12 and

13 47--Ptenetial-adverse-impaets-on-existng-and-petentis

14 diseharges-to-the-affeeted-greend-water-if-6-i-elessifeat-ien

15 eecursT

16 (7) Categories of G-I aquifers. For aquifers or aquifer

(.7 segments to be eligible for potential reclassification as G-I

18 aquifers one of the following criteria must be met:

19 (a) That the aquifer or aquifer segment under consideration

20 be within the zones of protection of a major public community

21 drinking water supply wells) or wellfield(s) withdrawing water

22 from unconfined aquifers or from leaky confined aquifers.

23 Determination of vertical travel time for leaky confinement will

24 be by application of the following formulae:

25 Vv = Kv L h/nl

26 where:

27 Vv = vertical velocity (feet/day).

28 Kv = vertical hydraulic conductivities of the surficial
aquifer and underlying confining bed materials
S9 (feet/day).

30 *h = head gradient between water table in the surficial
aquifer and the potentiometric surface of the producing
31 aquifer (feet).

./ Lo





n = effective porosities of the surficial aquifer and


underlying confining bed materials.


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producing aquifer (feet).


Tv = 1/Vv 365

where:

Tv = vertical


travel time (years).


1 = same as above.


Vv = same as above.

(b) (Consideration of the following aquifer categories for


reclassification as G-I is reserved.)


1. High recharge areas.

2. Only locally available source of drinking water to

coastal barriers.

3. Future public water supplies.


(8) Determination of the boundaries of the zones of


protection.

(a) The boundaries of the

based on radii from the wellhead

clustered, so that the five year


zones of protection shall be


or wellfield, (if closely


zones of protection are


overlapping) measured in 200 feet for the inner zone and five


years for the outer zone.


The radius of the outer zone shall be


determined using the following formula:


1/2


QT
r =-
3.14 hn


where Q = permitted average daily flow from the well (measured in

cubic feet per day); T = five years (1825 days); 3.14 =

mathematical constant pi; r = radius (feet); h = distance from the

top of the producing aquifer to the bottom of the hole (feet); n =


effective porosity.


For the purpose of this calculation the


following effective porosities for representative Florida aquifers

q. a 71


1 = distance from the water table to the top of the


1 = distance from the water table to the top of the


m


I i i m


I


ovranic mauedi 00fe frte ne zn ndfv












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protrudes beyond the caiculat peximetrori hei tbh.


configuration of the well is irregular, the perimeter will be

shaped to accommodate the configuration. The surface area

encircling the perimeter of the wellfield shall not exceed the


total surface area of the overlapping zones of protection for

individual wells.

In the case of unclustered wells within a wellfield

individual zones of protection around each well will be

calculated.

(b) Affected parties wanting to change the Department's

determination of the five year zone of protection may do so during

the rulemaking for reclassification to G-I by generating more

precise site-specific data concerning porosity, appropriate

thickness of the aquifer, length of the borehole, or average

permitted daily flow from the well or wells that would demonstrate

more accurate calculations of the zone. Further, affected parties

;fZ


will be used:

Floridan .05 Sand and Gravel .2

Biscayne .15 Surficial .2

The Department shall use more site-specific values for "Q", "n",

or "h" when available for designation of the zones of protection

by the Commission.

For wellfields whose individual zones of protection overlap

due to clustering, a single zone of protection will be calculated

in the following manner:

Using the permitted average daily withdrawal rate of the

wells with overlapping zones of protection, the area on the

surface overlying the aquifer equal to the sum of the areas of the

five year zones of protection of the individual wells, shall be

used to define the area which encircles the perimeter of the

wellfield. In cases where a zone of protection of a single well





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may also provide site-specific data at the well related to

recharge or vertical travel time which demonstrate more accurate

calculations of the zone. Sinkholes, or other hydrogeological

features that allow accelerated movement of contaminants to the

ground water will be considered for determination of the

appropriateness of recalculating the zone. An affected party

shall notify the Department, in writing, as soon as possible after

receiving information or notice relating to the specific G-I area,

of its intent to provide supporting technical data for an

alternative zone of protection. An affected party shall provide

the supporting technical information to the Department for

consideration no later than 90 days before the public hearing

before the Commission.

(c) Exemptions for installations discharging into Class G-I

ground water. This exemption procedure is in addition to an

exemption under Section 17-4.243(2), F.A.C.

1. The Secretary may, upon receipt of a petition for

exemption from a permit applicant and after public notice in the

Florida Administrative Weekly, and after opportunity for a Section

120.57, F.S., administrative hearing pursuant to Chapter 120,

Florida Statutes, issue an Order specifically exempting an

installation discharging, designed to discharge, or likely to

discharge within a Class G-I five year zone of protection, from

the criteria for that kind of installation as stated in Section

17-4.245(3), F.A.C., upon affirmative demonstration by the

petitioner of the following:

a. The exemption is based on more precise site-specific

information specific to a five year zone of protection to be

provided by the petitioner relating to porosity, appropriate

thickness of the aquifer, length of the borehole, vertical travel

time, recharge, or the average permitted daily flow from the well

S./?s





1 or wells which would demonstrate the inapplicability of that zone

2 for the installation under consideration. Sinkholes, or other

3 hydrogeological features that allow accelerated movement of

( c contaminants to the ground water will be considered for

5 applicability of the zone.

6 b. The Department reserves the right to revoke an

7 exemption based on one or more changes to applicable components of

8 a. above or other relevant information that would no longer result

9 in an affirmative demonstration to allow the continuation of said

10 exemption. Such revocation shall follow the public notice

11 procedures for variances as described in Section 17-103.100(4),

12 F.A.C.

13 Specific Authority: 403.061, 403.062, 403.087, 403.504, 403.704,

14 403.804, F.S. Law Implemented: 403.021, 403.061, 403.087,

15 403.088, 403.141, 403.161, 403.182, 403.502, 403.504, 403.702,
%
16 403,708, F.S. History: Formerly 28-5.06, 17-3.06, 17-3.081,

Amended and Renumbered 1-1-83, Amended

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