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HomeMy WebLinkAbout1994 08 19 - Ltr to SJRWMD HydrologistCITY OF SEBASTIAN 1225 MAIN STREET SEBASTIAN, FL 32958 PHONE (4O7) 589-5330 FAX (4O7) 589-5570 TO: HA?T?AktJ i ASSOCtnTzS 1,1c_ tot EAST plNe ST sv�� taoo OR. L.RNoo , FL 3280 i 'X"ffM Cr YEASSA YAL WE ARE SENDING YOU g ATTACHED ❑ UNDER SEPARATE COVER VIA COPY OF LETTER ❑ COPY OF MEMO ❑ SPECIFICATIONS ❑ CHANGE ORDER ❑ PERMIT APPLICATION ❑ SHOP DRAWINGS THE FOLLOWING ITEMS: ❑ PRINTS ❑ OTHER _ iMUt ARE TRANSMITTED AS CHECKED BELOW: ❑ FOR APPROVAL FOR YOUR USE ❑ APPROVED AS SUBMITTED ❑ RESUBMIT ❑ APPROVED AS NOTED ❑ AS REQUESTED ❑ RETURNED FOR CORRECTIONS FOR REVIEW AND COMMENT ❑ OTHER COPIES FOR APPROVAL ❑ SUBMIT _COPIES FOR DISTRIBUTION ❑ RETURN _ CORRECTED PRINTS REMARKS: TF-lE A=pf0Htm Copy l.S MY rzcvIe,,j C-0,PY wt TK eru,of= -TNE COM ntI 7s wE DISC I 6'o 0Q THE F -HON tr —10,( {, A, COPY TO: SIGNED: V 1FEACLOSURBSAW AVTASAVMD. =JDLTMJTZPT DSAT OM'? 08/15/94 14:14 p4ui aoa 4rau IlAR12LAIv abaut, C � � HARTMAN & ASSOCIATES, INC. engineers, hydrogeologists, surveyors & management consultants 201 EAST PINE STREET — SUITE 1000 — ORLANDO, FL 32801 TELEPHONE (407) 839-3955 FAX (407) 839-3790 FACSIMILE TRANSMITTAL T0: C^• cl ljo�a_��cc �.E. FROM: Nc �/ of 526 Rs-��'ow DATE: ? 9 Ll RE: WE ARE SENDING YOU O PAGES, INCLUDING THIS COVER SHEET - THESE PAGES ARE BEING TRANSMITTED AS INDICATED BELOW: ❑ AS REQUESTED ❑ FOR YOUR USE FOR YOUR COMMENTS Cl FOR YOUR APPROVAL HARD COPY. ❑ WILL BE SENT VIA REGULAR MAIL ❑ WILL BE SENT VIA OVERNIGHT MAIL ❑ WILL BE SENT BY FACSIMILE ONLY M F.C.SA r F - IF THERE ARE QUESTIONS OR PROBLEMS WITH THIS TRANSMITTAL, PLEASE CALL (407) 839-3955 Lgjuul/008 94 14: 1a uY� ��- August 9, 1994 HAT #92-023.14 Mr. Rich Burklew, Hydrologist Department of Resource Management St. Johns River Water Management District 305 East Drive Melbourne, FL 32904 Subject: Consumptive Use Permit Application -No. 2-061-0142AUNR2 City of Sebastian - Sebastian Highlands WTP Response to Request of Additional Information Dear Mr. Burklew: The following is the response to your letter dated July 7, 1994, requesting additional information to aid in the evaluation of the City of Sebastian's consumptive use permit (CUP) application, No. 2-061-0142AUNR2_ We have reprinted the questions from your letter and provided the responses below each question to assist you in your review of the City's permit application. We trust that the information presented is sufficient for you to complete your review and recommend approval of the City's permit. Ctry of Seba an CUP ADDlication No 1-061-019AUN 22 . »...,....,1 TnfnY ntvm . PART I - ADMINTSTRATIvE INFORMATION 1. Please submit an additional $600.00 to complete the will exceed cation processing fee of 0 gallons per day $1000.00 since the requested average daily use (see attached fee schedule). [(40C-1.603(1)] Attached, please find a check in the amount of $600.00 to complete the application processing fee of $1,000.00. Mr. Rich Burklew August 9, 1994 Page 2 PART II - TECM-1CAL INFORMATION 1. Based upon the amount of wastewater treated at the current level of potable water use, wastewater flows will exceed 100,000 gallons per day within two years. Please submit a detailed reuse feasibility study which includes a map of potential reuse sites, the irrigated acreage of each site, and a proposed implementation schedule. The potential use of reclaimed water at the municipal golf course should be included in the study. [Paragraph 10.3(e)(f), A.H.] Included in this package as Item A is an effluent disposal evaluation report prepared by Engineering Sciences, Inc. for the former water utility owner General Development Utilities. This report evaluates alternatives for meeting projected effluent disposal requirements of the Sebastian Highlands WWTP through the year 2008. The potential use of reclaimed water at the municipal golf course is included in this report_ 2. Please revise Table 2, page PS4, based upon a more representative per capita usage of 85 gpcd. In addition, please include the number of units and use a 6.5% annual growth rate for the population served as indicated on page PS -1 in place of the 15% to 22% growth rate initially submitted. [Paragraph 10.3(a), A.11.] The City of Sebastian - Sebastian Highland WTP is currently serving 1518 units. This is a service population of 42% of the total population, or approximately 4,860 people out of an estimated city population of 11,570. It is the City of Sebastian's goal to supply water service to at least 78% of the population (or 13,168 people out of a total projected city population of 16,882) by the year 2000. As can be seen on Table 2A included as Item B, the increase in the projected total city population is based on a growth rate of 6.5%. The increase in the projected population served, however, is based on the goal of the City to supply water service to 42% of the total population in 1994, 48% of the total population in 1995, and so on. The projected units served will 1v�- thus increase with the increase in the population served. It has been estimated that 10 G 0�� L a� there are currently 2 ple per unit. This number is expected to . decrease once y u 3rr Y River Run and Reflections on the River are taken off the City of Sebastian's water i system and begin water service with Indian River County by the end of this year (see response No. 5). It should be noted that with a change in per capita usage from 90 gpcd to 85 gpcd that the requested total annual average daily and maximum daily flows for each year have decreased 5.5%. This makes the average day and maximum day usage in the year 2000, 1.12 MG and 1.87 MG, respectively. Therefore, we request modification from Mr. Rich Burklew August 9, 1994 Page 3 what was originally requested for average day and maximum day flows to what is now being submitted in Table 2. 3. The monthly operating reports for 1993 indicate that 135 million gallons were pumped from the wells and 123 million gallons of treated water left the plant for distribution. Please explain the water loss of 9%, propose appropriate corrective action, and provide an implementation schedule. [Paragraph 10.3(a)(e), A.H.] The water loss of 9% can mostly be accounted for through the backwashing of filters. Plant records show that on average, approximately 10.0 MG of water is used annually for backwashing of fi�ers 4. Staff agrees that the water audit should be addressed as a permit condition in this case. Staff will propose a reduced permit duration of three years with the water audit to be submitted two years after permit issuance. [Paragraph 10.3(a)(e), A.H.] Mr. Rich Votapka, manager of Sebastian's Water Utilities will schedule a water audit with the Florida Rural Water Association. This will be conducted otiPark Place and Palm Uak— are connected to the Sebastian Highlands System, probably sometime Ee�t year: P i_ 4 C(e n.6.4c Kw P4 li 0,,,L.V s 5. Please propose an implementation schedule when River Run, Sebastian Ickes, and Reflection's on the River will replace their master meters with cluster meters to provide individual metering. [Paragraph 10.3(a)(e), A.H.] 6c c �! It is antics ted by year's end that River Run and Reflections on the River will begin - a. Indian River County and thus be taken off of the Sebastian Highlands system. The County is currently w a,., ckd R..Ft�dr Z.,sk'S�Jc. e{ US N.S k..�, 1ST u,...o,. ck•.a u,,d..:.. Qn:� G.1-��' S0.7Ff.,b..t l.. fr.wt-P•o;nJ�, � �, An implementation schedule for the replacement of master meters wi cluster meters at Sebastian Lakes is no longer being considered by the City of Sebastian. This implementation was entered into a utility agreement between the City and Sebastian Ickes, however, the agreement fell through. Sebastian Lakes has a master meter for each of its eight buildings; each building has six units. To replace master meters with cluster meters, each unit would have to undergo major and expensive plumbing renovations. 6. When will the City implement a retrofit program for non=residential water use. [Paragraph 10.3(a)(e), A.H.] 4{ l 2 � }�,w,� dw�.lep.�-a..:Fi� �sj S�u.�..f c�,.�.�..�,�-. Ow.. i� Co� �.wi«r �+..:,� is �.,s l,.l.t..l , its. 41y 5/94 14:17 $407 839 3790 &1RMAUN ASSOC 2005/008 Mr. Rich Burklew August 9, 1994 ✓�) I b, rti l Page 4 d„) Ai) Mr. Rich Votapka has been in contact with Mr. Mike Miller of the Water M2nagement District regarding the District's assistance with the City of Sebastian in impiementing a retrofit program for non-residential water use. Attached as Item C is a getter /to Mr. Miller from Mr. Votapka re P�sr-j n�ersa8en-aad- theCty's interest in meeting on the subject, 7. Please provide a schedule for the adoption of the following water conservation related ordinances or an explanation of why it cannot be undertaken. (a) Requiring the installation of ultra-low volume plumbing fixtures in all new construction, such that plumbing fixtures are installed to comply with the following maximum flow volumes at 80 PSI; Toilets 1.6 gal/flush Urinals 1.0 gal/flush Shower heads 2S gal/min Faucets (bathroom) 2.0 gal/mm Faucets (ldtchen) 2.5 gal/min (b) Prohibiting master meters on new service connections. (c) Prohibiting wasteful use of water. (d) Requiring the installation, where practical, of a dual piping system to provide reclaimed water in new construction. (e) Requiring water efficient (Xeriscape) landscape where economically feasible. Please be aware the District staff are available to assist in ordinance development. I6 (g54 [Paragraph 10.3(e), A.H.] Mr. Rich Votapka with the City of Sebastian has been in contact w, Mr. Mike Miller from your office regarding the District's assistance in develop en of the water conservation ordinance listed above. Attached as Item C is a letter o lair. Miller from Mr. Votapla the City of Sebastian's interest in b -Adop gen-afthesewater conservation measures- O -A^:° wil-+, Ass"i+� * P A - a 8. The aquifer hydraulic parameters used appear to be outside the range typical for this area. Please justify the use of these parameters. Please run the model again using a pumping rate based upon the additional water requested over current water use and an additional run of 90 days at the maximum daily pumping rate. 15/94 14:17 $407 839 3790 HARTMAN ASSOC Z006/008 Mr. Rich Burklew August 9, 1994 Page 5 Please provide a diskette with a copy of the MODFLOW input and output files as well as the version of MODFLOW used to run the simulations. [Paragraph 10.3(c)(d), A.H.] As we have previously discussed via telephone, the aquifer paramenters used in drawdown impact model submitted with the permit application were obtained from the report `Drilling and Testing for Public Water Supply from the Shallow Aquifer" prepared by Geraghty & Miller, Inc. in 1981. This test area consisted of the Sebastian Highlands WTP and surrounding area. Therefore, aquifer parameters used in the model were obtained from site specific testing conducted by Geraghty & Miller, Inc. A copy of this report was forwarded to you in mid-July. Attached as Item D is a drawdown impact model simulating a pumping rate based upon the additional water requested over the current use and a model simulating 90 days of pumping at the requested maximum daily pumping rate of 1.87 MG. Also included as Item D is a diskette with a copy of the MODFLOW input and output files as well as the version of MODFLOW used to run the three (3) simulations. 9. Please provide the water level and water quality information requested in conditions 18, 19, and 20 of the existing permit. If the previous water system owner's records are missing or incomplete, please collect and analyze water quality samples and record water levels as specified in the above referenced conditions. The information should be included with the next submittal along with a monitor well location map. [Paragraph 10.3(d)(h), A.H.] Attached as Item E, please find the water level and water quality information requested in conditions 18, 19, and 20 of the existing permit. Information pertaining to condition 18 is weekly data dating from July 1993 to June 1994. Information pertaining to condition 19b, 19c and 20a is monthly data dating from July 1993 to June 1994. Information pertaining to condition 20b is quarterly data dating from January 1993 to June 1994. Also included as Item E is a map showing Sebastian Highland WTP production well and monitor well locations. 1S/94 14:18 $407 899 3790 RARTMAN ASSOC 00007/008 Mr. Rich Burklew August 9, 1994 Page 6 Thank you for your time and assistance throughout this permitting process. If you have any questions, please contact either me or Bruce Iafrenz at (407) 839-3955. Very truly yours, Hartman & Associates, Inc. William J. Wasson Hydrogeologist WJ W /ns /C-1 /burkl. wjw cc: Rich Votapka, P.E., City of Sebastian Hal Schmidt, P.E., HAI Gary ReVoir, P.E., HAI Bruce iafrenz, P.G., HAI Steve Rapp, HAI Neil Klaproth, HAI TABLE 2A PROJECTED WATER USE SUPPLEMENTAL TO TABLE 2 -Z'41 m NRI� ER Irl.N1.5 ....... �(O�g vg. 2, 1994 11570 4859 42 i 1518 85 0.413 0.690 1.728 1995 12322 5915 48 2250 85 0.503 0.840 1,728 1996 13123 7086 54 2725 85 0.602 1.01 1.728 1997 13976 8386 60 3225 85 0.713 1.19 1.729 1998 14884 9823 66 3778 85 0.835 1.39 1-728 1999 15852 ---11413 72 4389 85 0.970 1.62 1.728 2000 16882 1 L3169 78 5064 85 1.12 1 1.87 1.728 WIW/m/C-1/burld.v, w 081094 HAI #92-023.14