# tblConcentrateWaterQuality

Facility:
Island Water Association RO WTP at Sanibel Island


Value:
analysis is of concentrate + blend; blend quality is heavily affected by drought


Facility:
Palm Beach county #9 WTP - Sandlefoot Cove


Facility:
Palm Beach County Membrane Softening WTP #3


# tblContact

Facility:
Island Water Association RO WTP at Sanibel Island


Facility:
City of Sunrise Sawgrass Membrane Softening WTP


Facility:
Palm Beach County Membrane Softening WTP #3


Facility:
Palm Beach county #9 WTP - Sandlefoot Cove


# tblPlant

Wastewater Treatment:
Concentrate is treated with caustic to raise pH prior to flow into WWTP.

Discharge System:
Concentrate is discharged via a dedicated pipeline to the front end of the City of Dunedin WWTP.  WWTP is about 2.5 miles away.

Process Comments From Plant:
Buildout capacity is 12 MGD, actual average capacity is 4.5 MGD.

COMMENTS - Utilities -Source Water:
Have 19 production wells.  Just completed drilling 7 new wells to Upper Floridan but these are not online yet.


Permittee Contact:
Attn: Mr. James E. Elder, P.E., Administrator

Discharge System:
Concentrate will be discharged to a Class I injection well.

Process Comments From Plant:
No major plant changes anticipated; have another train will go into the RO plant in 2-3 years.

Deep Injection Well Characteristics:
A Class I industrial injection well with a final casing of 10 3/4" fiberglass reinforced pipe to 1040 feet below land surface.  The open hole interval extends to 1800 feet below land surface into the Lower Ocala Limestone and Upper Avon Park Formation.  Outermost casing size is 30".

Monitoring Well Characteristics:
Three monitoring wells.  One of 12" steel outer diameter to monitor interval 263' to 430'.  One of 6" PVC outer diameter to monitor 260' to 420'.  One of 6" PVC outer diameter to monitor 500' to 550'.

COMMENTS - Utilities -Source Water:
Have 17 production wells from four different well fields.  Nasty feedwater, in general. Planning on capping some wells and drilling new ones.  Some wells on site; some within 1 mile; others 7 miles away.


Discharge System:
Concentrate is discharged to a Class I injection well on site.

COMMENTS - Utilities - Disposal challenges:
Had a leak in injection well tubing very near the bottom; going to put a Fiberglas sleeve in.

Deep Injection Well Characteristics:
A 16-inch outer diameter well with a 13-3/8 inch outer diameter liner.  Well can be used to inject up to a flow rate of 8 feet per second (peak hour flow) or 4.06 MGD of membrane concentrate only.  The injection interval is between 2,780 feet and the total depth of the well at 3,312 feet below land surface.

Monitoring Well Characteristics:
A dual zone monitoring well with a lower monitoring interval between 1,800 feet and 1,855 feet below land surface for the purpose of monitoring below the lowermost USDW.  The upper monitoring interval is between 970 and 1,084 feet below land surface and is designed to monitor within the USDW.


Plant Description:
A reverse osmosis plant concentrate with a flow of 0.26 MGD.

COMMENTS - DEP offices:
Permit minor modification on 10/24/2000 to re-rate the Burnt Store injection well from 177 to 219 gpm (0.315 MGD).  Warning letter sent 3/13/2001 about permit number FL0034967 expiring on 1/30/2001.

Process Comments From Plant:
Recently moved equipment to new building and increased capacity.  But capacity is limited by production wells.   Have equipment for 1 MGD but production well capacity for only 0.75 MGD.

COMMENTS - Utilities - Disposal challenges:
Wastewater discharge permit expired on 1/30/01 - the process of renewing it has not been completed yet.

Deep Injection Well Characteristics:
Concentrate is discharged to a 3 inch tubing and packer Class I injection well with 7 5/8 inch steel casing cemented to 2,528 feet below surface level and a total depth of 3,2658 feet below land surface.  The maximum injection pressure shall not exceed 80 psi.

Monitoring Well Characteristics:
The existing dual monitoring well will monitor from a shallow zone (1207 - 1287 feet below surface level) and a deeper zone (1832 - 1868 feet below surface level).


Permittee Contact:
Attn:  David Cash, Interim Utilities Water Production Superintendent

Discharge System:
Concentrate can be discharged to any of 4 Class I injection wells at various locations.  The system is interconnected.  Presently(10/01), discharge is to the deep well at the Jacaranda (formerly Venice Gardens) site where well data is being develped in anticipation of activating the Jacaranda WTP.

COMMENTS - DEP offices:
Sarasota Utilities owns Venice Gardens, Plantation and Carlton WTPs.  Venice Gardens and Plantation were purchased by the County from a private utility.  They are off-line and taken out of service.  Venice Gardens is now referred to as the Jacaranda Plant and there are considerations for bringing it back on line. There are 4 deep wells that are permitted to take concentrate from these plants; the wells are at different sites and each has its own UIC permit.  The 4 wells are: Plantation RO WTP (41919); Center Road (131473); Venice Gardens WTP (UO58-263243); Venice Gardens WWTP (UC58-281248).

Process Comments From Plant:
County bought several smaller systems and took them all off-line.  This included Venice Gardens and Plantation RO systems which were decommissioned.  The County has been exceeding the permitted capacity at Carlton and are considering bringing another RO plant (Jacaranda) back on line.

Deep Injection Well Characteristics:
(131473-001-UO):   a 12" fiberglass reinforced pipe completed to 1524 feet below surface level inside a final 18" diameter steel casing, landed at 1540 feet below surface level and completed into the Upper Avon Park Formation. The open hole interval is between 1540 feet and 1920 feet below surface level.  (41919-001-UO): Limited to backup disposal only until after all other system wells have reached their permitted capacities. A Class I Injection well with a 8" ABS tubing completed to 1102 feet below surface level.  The open hole interval is between 1102 and 1349 feet below surface level into the Lower Ocala Limestone and Upper Avon Park Formation.  (UC58-263243): an 8" diameter ABS casing to a depth of 1388 feet below surface level and an 8" open hole interval to 1705 feet below surface level.

Monitoring Well Characteristics:
(41919-001-UO): There are 5 monitor wells:  MW-2 of 4" PVC outer diameter casing to monitor interval between 52 and 65' below land surface (below surface level) in the Tamiami Limestone formation; MW-4 of 4" PVC to monitor interval 66' to 180' below surface level in the Upper Hawthorn Gp.; RO-2 of 10" PVC to monitor the interval 245' to 380' below surface level in the Lower Hawthorn Gp.; MW-5A of 4" PVC to monitor the interval 630' to 755' below surface level in the lower Suwannee Limestone formation; MW-5 of 6" PVC to monitor the interval from 880' to 955' below surface level in the Ocala Limestone formation.

Maximum Injection Rate:
(131473-001-UO): 4 MGD peak hourly flow; (41919-001-UO): 1.86 MGD peak hourly flow: (UC58-281248): 6.1 MGD maximum disposal rate; (UO58-263243): 1.86 MGD maximum injection rate


Permittee:
Charlotte Harbor Water Association, Inc.

Plant Description:
A reverse osmosis WTP producing a concentrate with an annual average daily flow of 0.15 MGD.

Discharge System:
Concentrate is discharged at an existing outfall in the San Marino Canal leading to the Pearce River, a Class III water body.  The point of discharge is through a six-inch pipe at the terminal end of the canal.

Mixing Zone:
Mixing zones have been established for gross alpha particle activity and combined radium.  The mixing zone is defined as extending 270 feet from the point of discharge.

Consent Order/Administrative Order:
A Consent Order (OGC Case No. 99-1906-08-IW) executed by the Department on 6/17/2000, requires the facility to obtain a permit, submit an engineering evaluation addressing toxicity, apply for an authorization to reduce toxicity, eliminate the discharge or seek a variance, mixing zone, site specific alternative criteria or other administrative relief and be in full compliance by January 1, 2002.

Parameters Monitored:
Flow, TSS, Total Phosphorus, hydrogen sulfide, DO, pH, TDS, combined radium 226 & 228, gross alpha particle activity, fluoride, total recoverable copper.

Toxicity Monitored:
Chronic (Mysidopsis bahia - survival, growth & fecundity; menidia beryllina - larval survival and growth)

COMMENTS - DEP offices:
DEP has draft permit. DEP has been suggesting they put in a deep well; issue is up in the air.

Process Comments From Plant:
The new plant started in May 1998 not far from the site of the old plant.  Some of the equipment from the old plant was used.

COMMENTS - Utilities - Disposal challenges:
Have applied for a variance for toxicity.  Plant feels it will be granted.

COMMENTS - Utilities -Source Water:
Have four production wells designated 2, 5, 6, 7

Receiving Water Body:
San Marino Canal leading to the Pearce River, a Class III water body.


Plant Description:
An existing RO drinking water treatment plant with a design concentrate flow of 3.05 MGD.

Wastewater Treatment:
Concentrate is treated with caustic to adjust pH; air is injected into the pipe and just enough sodium hypochlorite solution is added to oxidize the H2S, but not enough to get a residual chlorine level.

Discharge System:
Effluent from the treatment system is discharged to Lake Finisterre which is a part of the man-made salt-water canal system of Cape Coral.

Mixing Zone:
A mixing zone is established for radium 226 & 228 and gross alpha and includes Lake Finisterre and the connected saltwater canal system up to the point of confluence with the Caloosahatchee River.  A mixing zone of 12 foot is established for fluoride.

Variance:
A variance allows toxicity tests to be done within the mixing zone instead of from the end of the pipe.

Parameters Monitored:
Flow, residual chlorine, hydrogen sulfide, DO, pH, TDS, fluoride

Toxicity Monitored:
Acute (Mysidopsis bahia, menidia beryllina)

COMMENTS - Utilities - Disposal challenges:
Went through the bioassay demonstration of major ion toxicity.   Presently has an exemption from the length of the mixing zone for gross alpha and radionuclides.

Receiving Water Body:
Lake Finisterre which is a part of the man-made salt-water canal system of Cape Coral.


Permittee Contact:
Emmett Waite, Jr., Director of Public Works

Disposal Type:
Surface Water Disposal and Land Application

Plant Description:
A membrane plant producing design and average concentrate flows of 1.2 MGD and 0.8 MGD respectively.  Concentrate flows are expected to increase over the term of the permit (1997).

Wastewater Treatment:
In-line cascade aeration is used to increase dissolved oxygen and reduce hydrogen sulfide.  Concentrate is diluted with water, drawn from the Caloosahatchee River, prior to discharge (1997).

Discharge System:
Discharge is to the Eastwood Golf Course lake system to insure compliance with specific conductance limits at the outfall of the lake system to the North Colonial Waterway. The North Colonial Waterway is a Class III Fresh Surface Water Body.  The lake system discharge to the North Colonial Waterway is intermittent and dependent on rainfall levels.  Water is drawn from the lake system and used to irrigate the Eastwood Golf Course (1997).

Nature of Monitoring Requirements:
Effluent before dilution; discharge to the Eastwood Golf Course lake system; discharge to the North Colonial Waterway.

Parameters Monitored:
Flow, DO for effluent before dilution; specific conductance for discharge to Eastwood Golf Course; hydrogen sulfide, pH, and specific conductance for discharge to North Colonial Waterway.

Monitoring Well Parameters (non-DWI):
water level, nitrate, TDS, sodium, chloride, sulfate, pH

COMMENTS - DEP offices:
Monitoring wells are for the golf course.   Capacity of plant evidently increased between the 1997 permit date and inspection date of 9/21/1999 where the design wastewater flow of RO concentrate only is given as 3.048 MGD.  There is a permit denial notice dated 1/14/2000 for discharge of the concentrate to the City of Fort Myers Yacht Basin.

Process Comments From Plant:
In process of converting plant from NF to RO; project will start 1/1/02 and plan to be completely on line by 3/1/02.  Average capacity is 7 MGD.

COMMENTS - Utilities - Disposal challenges:
They will discharge the RO concentrate to deep well.

Receiving Water Body:
Discharge is to the Eastwood Golf Course lake system. Some of the lake water is used used for irrigation.  Some of the lake water discharges to the North Colonial Waterway, a Class III Fresh Surface Water Body.


Permittee Contact:
Frederick Bloetscher, Deputy Public Utilities Director

Plant Description:
A reverse osmosis and membrane softening WTP producing concentrate up to 2.2 MGD, annual average daily flow, or 5.3 MGD, maximum daily flow.  The concentrate from the RO system contributes 36% of the total flow with the membrane softening concentrate contributing 64%.

Wastewater Treatment:
Concentrate from the RO plant is chlorinated at the WTP site to remove excess hydrogen sulfide.

Discharge System:
The combined RO and MS concentrate is transmitted to the effluent pump station located at the City of Hollywood WWTP site for ocean disposal. At the WWTP site, the concentrate is commingled, prior to disposal, with treated effluent primarily from the City of Hollywood WWTP and occasionally includes effluent from Davie/Cooper City WWTPs.  The concentrate disposal is projected to contribute, on an annual average daily flow basis, approximately 5 to 7 % of the combined outfall flow capacity. The outfall pipeline is approximately 10,000 feet in length and discharges at a depth of approximately 90 feet, mean sea level.

Mixing Zone:
Mixing zones previously existed for the ocean outfall and are not effected by this permit.  New mixing zones are established for the combined discharge.  New mixing zones are for iron, combined radium 226 & 228, gross alpha particle activity and all are identical in size and shape and are defined as follows:  Based on modeling performed to establish the mixing zone area, the actual plume radius at the ocean surface is 4 meters (13.12 feet) and the horizontal displacement of the plume from the end of pipe is 12.5 meters (41.01 feet).  The total distance of the plume's outer edge from the end of pipe is therefore 16.5 meters (54.13 feet).  This 16.5 meter distance was taken to be the radius of a circle, to account for movement of the plume in all directions due to ocean currents, which resulted in an area of 853 m2 (9,161 ft2).

Nature of Monitoring Requirements:
Concentrate discharge prior to mixing with WWTP effluent and combined discharge at ocean outfall

Parameters Monitored:
Concentrate discharge: flow, total ammonia, nitrate, total nitrogen, total phosphorus, total recoverable mercury, total recoverable silver, total residual chlorine, DO, pH, salinity; combined discharge: hydrogen sulfide, total recoverable iron, combined radium 226 & 228, gross alpha particle activity

Process Comments From Plant:
RO part of the RO and NF system did not operate for about 6 years until about November 2000.  City did not run the RO because of the perceived expense.  When plant was started in about 1995 the RO portion was never started, so plant personnel are dealing with the startup problems themselves as opposed to the way this is usually done.   RO being put back on in part due to the drought condition.

COMMENTS - Utilities - Disposal challenges:
NONE.  Had some first year problems when ran concentrate to headworks of WWTP; no problems since that time.

COMMENTS - Utilities -Source Water:
Four production wells for the RO system draw from the Floridan aquifer.  Sixteen wells for the NF plant, are shared with the lime softening plant and draw from the Biscayne aquifer.

SOURCE WATER - body of water:
RO pulls from Floridan aquifer; NF pulls from fresh water Biscayne aquifer.


Plant Description:
The city bought the Indian River North Beach membrane plant, disassembled it and moved it to the present site.

Discharge System:
Presently discharging to the front end of a WWTP.  Effluent goes to deep well injection.  Would need to get tubing and packer in deep well to dispose concentrate directly to deep well.

COMMENTS - DEP offices:
Plan to increase plant capacity in near future and need to change disposal means.  An application has been submitted for an exploratory well permit.  Information obtained will be used in a supporting document in an application for a new injection well to dispose the concentrate.

COMMENTS - Utilities - Disposal challenges:
Concentrate goes to sewer; effluent from WWTP goes to deep injection well.  Would have had to put tubing and packer in the injection well to dispose directly to the well.


Discharge System:
Concentrate is discharged to a Class I tubing and packer injection well.

Variance:
Have variance on well due to deterioration of inner tubing.  Have replaced it twice.

COMMENTS - Utilities - Disposal challenges:
Have only had the problem with deterioration of the injection well tubing.  Have had to replace this twice.  Now using fiberglass.  Not sure of reason for failures; may involve some electrolysis.

Deep Injection Well Characteristics:
The deep injection well resulted from repair of a 10.75 inch (O.D.) Class I (tubing and packer) well and modification of the lower zone of a dual zone monitor well.  The injection well is used to inject up to a flow rate of 8 fps or 2.68 MGD (peak hour flow) of only membrane softening concentrate.

COMMENTS - Utilities -Source Water:
Have eight production wells all off site but within perhaps 1/4 mile of the plant.


Plant Description:
Membrane softening WTP producing a concentrate a peak flow of about 0.9 MGD.

Process Comments From Plant:
Presently at 6 MGD.  Within a year will expand to 12 MGD.  No longer use acid so recovery is somewhat greater than 85%.

Deep Injection Well Characteristics:
A Class I, 16" injection well with a 10-3/4" outside diameter steel tubing and packer assembly with an injection interval in the "Boulder Zone" in the Lower Oldsmar Formation between approximately 3,000 feet below surface level and the total depth of approximately 3,500 feet below surface level.

Monitoring Well Characteristics:
A dual zone monitoring well with the lower monitor interval between approximately 1,900 to 1,950 feet below surface level for the purpose of monitoring below the lowermost USDW.  The upper monitor interval will be between approximately 1,600 and 1,650 feet below pad level and is designed to monitor within, and near the base of the USDW.  Actual depths will be field determined during construction and testing.

COMMENTS - Utilities -Source Water:
Have eight production wells. Four on site and four a bit off site.


Plant Description:
New plant undergoing expansion from 4 MGD to 10 MGD by 1/2003.  Presently have two skids of 1.7 MGD each.  Produces about 825,000 gpd concentrate.

Wastewater Treatment:
Concentrate is blended with about 9% raw water and sent to a pond where it mixes with effluent from the Northport WWTP.  It is chlorinated there to help control algae.  Total effluent from pond is 1.2 MGD.

Discharge System:
Effluent from pond is sent to injection well on site.  Present well has 3.53 MGD limit.  For expanded plant of 1/2003 have proposed a new injection well that is about 8 miles from the plant.

Process Comments From Plant:
An expansion from the present 4 MGD to 10 MGD will be done by 1/2003.   A new deep injection well is proposed for this purpose.

Deep Injection Well Characteristics:
IW-1 is a retrofitted (tubing and packer) Class I injection well.  Well has a 10 3/4 outside diameter tubing installed inside the preexisting 12 inch inside diameter casing down to the existing casing base of approximately 2,750 feet below pad level. Tubing is reduced to 9 5/8 inch OD stringer to match in ID of the retrievable liner hanger packer.  Injection interval is in the "Boulder Zone" in the lower Oldsmar Formation between 2,750 ft and the total depth of the well at 3,324 ft below land surface. Capacity is 3.53 MGD peak hour flow.  Well disposes of RO concentrate and domestic effluent from Westport WWTP.

Monitoring Well Characteristics:
Well is monitored by a dual-zone monitor well, MW-1.  The lowermost interval is between approximately 1,730 to 1,800 ft below land surface for the purpose of monitoring below the lowermost USDW.  The upper monitoring interval is between approximately 950 to 1,175 ft below land surface and is designed to monitor a transmissive interval within the USDW.


Plant Description:
A reverse osmosis WTP with a design capacity of 4.0 MGD producing an average monthly flow of 2.8 MGD concentrate.

Wastewater Treatment:
Discharge consists of concentrate and the rinse and regeneration wastewaters from the ion exchange process.

Discharge System:
Discharge is to Hog Creek, a Class III body of water.  Hog Creek is a tributary to Sarasota Bay which is a Florida Outstanding Water.  The discharge point is located upstream of additional stormwater input of unquantified amounts and origin.

Consent Order/Administrative Order:
Under Administrative Order dated 9/12/2001.  This is a minor permit revision which extends the compliance date for the discharge limitations for the daily maximum flow and total phosphorus until 12/31/2002.

Parameters Monitored:
Flow, CBOD, TSS, total nitrogen, total phosphorus, combined radium 226 & 228, gross alpha particle activity, pH, DI, specific conductance, iron, fluoride, hydrogen sulfide, total residual chlorine, chlorides, total recoverable cadmium, total recoverable copper.

Biological Diversity Parameters Monitored:
monitoring of macro-invertebrate communities  along with DO, chloride, pH, temperature, and salinity at surface, mid and bottom depths of each sampling site

Toxicity Monitored:
Chronic (of effluent); (mysidopsis bahia - survival, growth and fecundity; menidia beryllina - larval survival and growth)

Process Comments From Plant:
About (9/01) to retrofit plant to spiral wound membranes. Have had the Dupont fibers.  Will get better performance, recovery, lower operating pressures.  Conversion will take up to 1 year.

COMMENTS - Utilities - Disposal challenges:
Originally discharging straight into a storm drain; so continued to do this.  Then ended up on backside of an enforcement action because they didn't have an appropriate permit.  Meanwhile, the state, a national estuary program and a few other groups decided that they wanted to do a habitat restoration program to the ditch where they were discharging to and decided that the RO concentrate provided a nice base flow for that ecosystem.  At present trying to wrap up a permit with a variance for radiologicals and toxicity.

COMMENTS - Utilities -Source Water:
Have eight production wells - not on site; disbursed within city limits.

Receiving Water Body:
Discharge is to Hog Creek, a Class III body of water.  Hog Creek is a tributary to Sarasota Bay which is a Florida Outstanding Water.


Facility:
City of Sunrise Sawgrass Membrane Softening WTP

Permittee Contact:
Walter Garrard, Asst. Director of Utilities

Plant Description:
A membrane softening WTP producing up to 3.8 MGD concentrate.  There have been several construction delays.

COMMENTS - DEP offices:
Completion date has slipped. The well is in a standby mode.

Process Comments From Plant:
About one year behind schedule. Have had a series of problems. Troubles with electronics and controls.  Membranes were too tight.  Decided to make them less tight. Got sand in membranes coming from the feed lines; took months to get membranes clear.  Haven't passed performance test yet.

COMMENTS - Utilities - Disposal challenges:
Because of construction delays, haven't had water to do any testing of wells.

Deep Injection Well Characteristics:
A 24 -inch outer diameter Class I injection well with a 20-inch outer diameter, 0.5 inch thickness, seamless, steel tubing and retrievable liner hanger packer.  The injection interval is in the "Boulder Zone" in the lower Oldsmar Formation between 3,000 feet and the total depth of the well at 3,400 feet below land surface.

Monitoring Well Characteristics:
A dual zone monitoring well with a lower monitoring interval from 1950 to 1980 feet below land surface for the purpose of monitoring below the lowermost USDW.  The upper monitoring interval is 1620 to 1700 feet below land surface and is designed to monitor the lowermost transmissive interval of the USDW.

Maximum Injection Rate:
The well is sized permitted for a total flow of 8.67 MGD of which no more than 3.8 MGD can come from the membrane WTP.

COMMENTS - Utilities -Source Water:
Have 6 production wells off site by about three miles.


Permittee Contact:
Attn: Mr. John M. Lane, Director of Utilities

Plant Description:
A reverse osmosis plant producing an average flow of 2.0 MGD and a maximum 7-day average flow of 3.56 MGD.

Wastewater Treatment:
Concentrate is currently pretreated by chlorination and aeration prior to discharge which goes to a small creek behind the plant.  But by 11/2001 concentrate will go to new outfall on the Intercoastal.  New treatment will use air compressor and static mixers and addition of chlorine.  This will treat for H2S in the pipeline on its way to the outfall.

Discharge System:
Limited dilution of present system leads to chronic toxicity problems.  (As of 11/2001) Discharge of pretreated concentrate is through an outfall on the east bank of the Intercoastal Waterway at a location about 1,000 feet west of the plant and 200 feet south of Venice Avenue Bridge.  This part of the Intracoastal Waterway (ICWW) is a 200-foot-wide, man-made, canal, connecting Roberts Bay and Lemon Bay, and is designated as a Class III water body.  Outfall consists of a 50-foot long, 24-inch diameter pipe with 42 discharge ports (diffusers) located at the toe of the ICWW embankment discharging parallel to the channel with a minimum velocity of 20 feet per second at an approximate water depth of 7.7 feet.  The angle of orientation of the diffusers will be 30 degree from horizontal to minimize bottom scouring or an erosion control pad will be placed under the diffuser, if the angle is less than 30 degrees from horizontal, to minimize erosion.

Mixing Zone:
A mixing zone is granted with a surface area of 210-feet (length centered over diffuser, north and south) by 45-feet (width from center line of diffuser, east and west) for radium 226 & 228 and gross alpha.  Also granted is a mixing zone of 116 feet (length centered over diffuser, north and south) by 30 feet (width from center line of diffuser, east and west) for chronic toxicity.

Parameters Monitored:
Flow, specific conductance, total recoverable copper, total nitrogen, total phosphorus, 5-day carbonaceous oxygen demand [the preceding must be sampled for at least six months - continued sampling depends on the results], TSS, gross alpha, pH, DO, iron, fluoride, hydrogen sulfide, total residual chlorine, chloride, combined radium 226& 228.

Toxicity Monitored:
Chronic (edge of mixing zone) and acute (effluent)  (menidia beryllina and mysidopsis bahia)

COMMENTS - DEP offices:
Permit modified 8/11/2000 with listed outfall change and the listed monitoring requirements. Permit modification of 1/23/2001 was an extension of the deadline for completion of the listed outfall.

Process Comments From Plant:
Do not see plant expansion in next 3-4 years.  Present capacity is 4 MGD; average 2.5 MGD; 2 in summer and 3 in winter. They have a fourth skid that hasn't been run yet - it is used for backup.  New permit will allow for expansions.

COMMENTS - Utilities - Disposal challenges:
Have until 11/2001 to relocate the outfall to the Intercoastal.  They started about 10 years ago and were 2 days from having it passed when an environmental group (Manasota88) challenged it.  Went through several legal things when Manasota88 group decided to drop it about 2 years ago.  So DEP issued a go-ahead to relocate the outfall.  Originally (since 1975) they put concentrate into a little creek behind the plant.  Tests showed heavy influence from tides and rain. So DEP wanted concentrate to go to Intercoastal which is about 1/2 mile away.  So pipeline and diffuser is under construction now and should be operational by 11/2001.

COMMENTS - Utilities -Source Water:
Have 12 production wells.  Will add two additional wells.

SOURCE WATER - body of water:
Floridan aquifer (upper); also called Intermediate aquifer

Receiving Water Body:
(As of 11/2001) Discharge is through an outfall on the east bank of the Intercoastal Waterway.  This part of the Intracoastal Waterway (ICWW) is a 200-foot-wide, man-made, canal, connecting Roberts Bay and Lemon Bay, and is designated as a Class III water body.


Discharge System:
Concentrate is discharged to a Class I injection well at WWTP about 3 miles away.

Process Comments From Plant:
Started with two blocks in 1990; each about 0.9 MGD and 80% recovery.  Recently, did first membrane replacement after 10 years.  Put in 2 more blocks in 1996.   Just got clearance for the 5th block in September, 2001.

Deep Injection Well Characteristics:
A Class I, 16" outside diameter injection well with an injection interval into the "Boulder Zone" in the lower Oldsmar Formation between 2,756 feet below surface level and a total depth of 3,389 feet below surface level. Had to put in tubing and packer the last time the permit was renewed.

Monitoring Well Characteristics:
A dual zone monitor well with a lower monitoring interval 1,938 to 2,010 feet below surface level for the purpose of monitoring below the lowermost USDW and the upper monitoring interval of 1,538 to 1,622 feet below surface level to monitor within the USDW.

COMMENTS - Utilities -Source Water:
Have 10 surficial production wells.  Wells 9 and 10 are the two farthest away from the plant; TDS is slightly higher.  One well will operate one block (train).


Facility Street:
8005 Vanderbilt Beach Road Extension, Naples, FL 34112

Permittee Contact:
Paul Mattausch, Director of Water Department

Plant Description:
An existing plant producing membrane softening concentrate and more recently RO concentrate and miscellaneous flows.  Design wastewater flow of 4.76 MGD

Discharge System:
Effluent from the membrane plant is discharged to two Class I injection wells located on site.  The injection wells are permitted separately and are known as IW-1 and IW-2.

COMMENTS - DEP offices:
Have information on IW-2; IW-1 well description is the same; both wells there since the beginning. DEP: in process of reviewing expired UIC permit; having a public hearing in May/01 giving a draft permit; right now IW1 is shut in because permit has expired; all they had to do was renew it but had changes in County government and they let it slide; no problems associated with status of this well. (comment as of 4/01).  Both wells are operating as of 9/01.

COMMENTS - Utilities - Disposal challenges:
The two concentrates are combined.  The well field is shared with the 12 MGD lime softening plant.  Both disposal wells are operating as of 9/01.

Deep Injection Well Characteristics:
IW-2 is a 16 inch tubing and packer well with 20 inch steel casing cemented to 2498 feet below surface and a total depth of 3210 ft utilized for the disposal of 6.3 MGD of membrane softening concentrate and treated domestic effluent from the North Collier WWTP.

Monitoring Well Characteristics:
IW-2 has a dual zone monitor well monitoring a shallow zone (900 - 995 feet below surface level) and a deeper zone (1815 - 1930 feet below surface level)

Maximum Injection Rate:
6.3 MGD of concentrate and treated domestic effluent form North Collier WWTP.

COMMENTS - Utilities -Source Water:
There are 27 production wells for the NF plant and 9 wells for the RO.

SOURCE WATER - body of water:
Tamiami aquifer for the NF and Lower Hawthorne for the RO


Discharge System:
Concentrate presently goes to a surge tank and is blended with raw wastewater influent to the WWTP on site.  Effluent (and concentrate) is disposed through an ocean outfall owned by the City of Hollywood.  Cooper City purchases capacity from Hollywood.  They will be switching to deep well injection for the concentrate and some of the effluent.  They have a UIC construction permit and the well has been constructed on site.  They are beginning construction on the pipeline to the deep well.  Will start a testing program and then make final application for the well operational permit.

Process Comments From Plant:
Plant will be expanded in summer of 2002.  Two more skids will be added and they will do away with the 3 MGD lime softening plant they have on site.  Possibly go to a total of 7 MGD of membrane softening.

COMMENTS - Utilities - Disposal challenges:
When they go to deep well injection they will recover the WWTP capacity which is important.  Prior to injection they will blend 50:50 with WWTP effluent to avoid corrosive problems that have caused tubing failures in some locations.

Deep Injection Well Characteristics:
A Class I (tubing and packer) 14-inch outside diameter injection well permitted to inject up to a flow rate of 10.0 feet per second or 6.0 MGD (peak hour flow) of concentrate and secondary treated domestic wastewater from the Cooper City WWTP.  The injection interval is in the "Boulder Zone" in the lower Oldsmar Formation between approximately 2,900 feet and the total depth of the well at 3,400 feet below land surface.

COMMENTS - Utilities -Source Water:
Have four production wells off site but within a block of the plant.


Permittee Contact:
James W. Moore, President, Gulf Utility Company

Plant Description:
A membrane softening drinking water treatment plant.  Design flow of concentrate will be increased from present 0.25 MGD to 0.45 MGD after completion of construction.  The concentrate will continue to be discharged to the Gulf Environmental Service's Three Oaks WWTP reuse system .

Discharge System:
Concentrate is discharged to a dedicated force main that goes to the Three Oaks WWTP about 8 miles away.  The WWTP effluent goes to a holding pond/irrigation reuse system.

Parameters Monitored:
Flow, nitrate, TDS, chloride, sulfate, pH

COMMENTS - DEP offices:
Have letter dated 3/10/2000 from DEP informing Gulf Environmental Services, Inc. of possible violations of law  that include: inspection showed turbid and brown colored foamy discharge from the concentrate discharge pipe and incorrect blending of concentrate with reclaimed water reported in Monitoring Reports for 1999.  Letter of 3/17/2000 from Gulf Environmental Services, Inc. to DEP stating that a construction permit was applied for to blend concentrate with effluent at the Three Oaks WWTP on 2/1/2000.  This blending will eliminate the foam conditions present at the Pelican Sound reuse pond.  Letter also refers to letter signed by DEP on 1/2/1997 modifying operating permit and eliminating the requirement to maintain a specific blend of concentrate to reclaimed water.

Process Comments From Plant:
Gulf Environmental Services is a not-for-profit entity set up by the County.  By June of 2002, the County will dissolve Gulf ES, run the plant and Severn Trent will no longer be involved.

COMMENTS - Utilities - Disposal challenges:
Concentrate goes to a ground storage tank and then to the front of the WWTP.  The WWTP effluent goes to holding ponds to be used for irrigation.  When there is significant rain, the irrigation holding ponds fill up and there is a limitation on the amount of concentrate that can be discharged.  Concentrate is held in the storage tank but they fill up after about 4-5 days.  Previously used injection wells until about 1997.


Discharge System:
Concentrate goes to a percolation pond on site managed by the WTP.  They used to have a WWTP on site but took it off line.

COMMENTS - Utilities - Disposal challenges:
One monitoring well was too close to where the concentrate discharge was; they were getting high chlorides.  Had two ponds; one was not being used.  So they moved the point of discharge over to the other pond further from the two monitoring wells.   This is what was repermitted.


Discharge System:
Concentrate will go to deep injection well.

Process Comments From Plant:
As of 10/01 plant is in month 6 of an 18-month project schedule.

COMMENTS - Utilities - Disposal challenges:
Are proposing to DEP several non-standard deep injection well disposal aspects.  First is to cement the annular space all the way up to land surface.  Second is to use fiberglass final casing instead of steel.  Third is to get variance so can site the deep well 465' (as opposed to 500') from the nearest production well. They are optimistic that DEP will allow these changes.

SOURCE WATER - Yearly Withdrawal:
have had withdrawal from some of the wells for the lime softening plant


Permittee:
Gasparilla Island Water Association, Inc.

Plant Description:
A reverse osmosis plant with a design limit of 1.0 MGD concentrate.

Consent Order/Administrative Order:
Must cease & desist surface discharge by 12/1/01 due to compliance violations for toxicity and rads.

Process Comments From Plant:
Have room for one more train; another 0.25 MGD.  May do this or go to higher pressure pumps in next year.

COMMENTS - Utilities - Disposal challenges:
In last phase of putting in an injection well; should be on line in 11/01.

Deep Injection Well Characteristics:
Concentrate will be discharged to a 6 inch tubing and packer Class I injection well (IW-1), with cemented 12" steel casing to approximately 1,600 feet below surface level and a total depth of approximately 2,000 feet below surface level.  Injection is into the lower Avon Park Formation.

Monitoring Well Characteristics:
The IW-1 shallow zone monitoring well will be completed from approximately 500 to 550 feet below surface level and the deep zone monitoring well will be completed from approximately 900 to 950 feet below surface level.  The existing intermediate aquifer monitoring well is completed from 200 to 417 feet below surface level.

COMMENTS - Utilities -Source Water:
Have four production wells with two under construction.


Plant Description:
An existing plant producing 0.125 MGD of potable water byproduct.

Wastewater Treatment:
Potable water byproduct is treated by blending with water drawn from northern pond of the Ribbon Lakes, and then discharged to southern pond of the Ribbon Lakes.  Treatment is by blending with stormwater, prior to disposal.

Discharge System:
Byproduct is mixed with 0.5 MGD drawn from the northern pond of Ribbon Lakes on Halifax Plantation Golf Course.  The Ribbon Lakes is a man-made lake, having a length of approximately 11,000 feet and a surface area of approximately 74 acres.  The lake has an average depth of 10 feet and stores approximately 150 million gallons of water.  The lake is used for irrigation purposes and for storage of stormwater.  After blending, the resulting blend is discharged into the southern pond of the Ribbon Lakes.  The average amount of the blend withdrawn form the northern pond of the Ribbon Lakes for Golf Course irrigation purposes is approximately 0.625 MGD.  Mixing of the byproduct and lake water is performed by a static mixer.  The withdrawal and discharge points are at different points of the lake.

Parameters Monitored:
Flow, sodium, chloride, TDS, sulfate, ammonia, nitrogen, pH

Process Comments From Plant:
Between 3/2000 and 8/2001 changed to new antiscalant and eliminated acid.

COMMENTS - Utilities - Disposal challenges:
Plant is not meeting the TDS requirements.  They mix concentrate with 4 parts of water from the Ribbon Pond system; pipe this (static mixers inline) about 3000' to discharge point.  Due to dry weather in last 2 years, TDS in lake system has been creeping up and it approached the 500 ppm permit limit.  Concentrate is much higher in TDS and mix did not meet the 500 limit. Separate from this they are requesting a permit modification to change the concentrate volume limit from a max day to a monthly average limit.

COMMENTS - Utilities -Source Water:
Have 7 production wells spaced about 1000 ft apart and strung out along the FP&L power corridor along I95.


Plant Description:
A reverse osmosis plant producing 0.087 MGD maximum flow discharge of concentrate.

Wastewater Treatment:
Treatment consists of aeration and discharge through a 4" force main to outfall 001.

Discharge System:
Discharge is to Deep Creek, a Class III surface water.

Mixing Zone:
for un-ionized ammonia 10.0 feet from diffuser discharge port; for radium 226 & 228, a radius of 11.2 feet from the diffuser discharge ort; for specific conductivity, silver, gross alpha, and chronic toxicity,  a radius of 5.0 feet from the diffuser discharge port

Consent Order/Administrative Order:
Presently under an administrative order until permit renewal is issued (expected to occur in October 2001).

Parameters Monitored:
Flow, DO, specific conductivity, hydrogen sulfide, un-ionized ammonia, silver, radium 226 & 228, gross alpha, pH

Toxicity Monitored:
chronic (Cerio daphnia dubia (daphnia) - survival and reproduction; pimephales promelas (fathead minnow) - larval survival and growth)

Process Comments From Plant:
Plan expansion of another 0.22 MGD in next 2-3 years.

COMMENTS - Utilities - Disposal challenges:
NONE - receiving water is worse quality than the concentrate.  New permit being issued (11/01).

Receiving Water Body:
Discharge is to Deep Creek, a Class III surface water.


Plant Description:
The maximum permitted daily concentrate production rate is 0.12 MGD.

Wastewater Treatment:
Concentrate is aerated prior to going to perc pond.

Discharge System:
Concentrate is sent to on-site percolation ponds (rapid infiltration basin land application system).  There are two groups of percolation ponds with a total area of 166,500 sq. ft. having a capacity of 0.176 MGD.

Nature of Monitoring Requirements:
blended RO concentrate and WWTP effluent

Parameters Monitored:
Na, Ca, Mg, TDS, Cl, F, SO4, Pb, Cr, pH, conductivity

Process Comments From Plant:
County bought the plant from Holiday Pines in 1998. Plant also referred to as the North Regional Plant or North District Plant.


Discharge System:
Concentrate goes to WWTP and joins effluent that has been disinfected (chlorine holding tank); waters are combined and go to irrigation holding/storage pond.

Process Comments From Plant:
No plans for expansion as property is completely built out.


Facility Street:
Northwest corner of 58th Avenue and 77th Street

Permittee:
Indian River County Utilities Department

Permittee Contact:
Attn: Terrance G. Pinto, Director Utility Services

Plant Description:
A reverse osmosis plant that produces, in the first phase, a maximum of 0.75 MGD concentrate.

Wastewater Treatment:
Concentrate is treated with an air stripper and chlorination to remove hydrogen sulfide.

Discharge System:
After treatment, concentrate is pumped 17,000 feet through a 16-inch force main to the Wabasso Bridge (the highway 510 crossing of the Indian River).  The bridge is the dividing line between Class II and Class III designated marine surface waters.  The pipe is directed to the Class III waters by a 90 degree "L" at the point of discharge.  This area has been classified as an Outstanding Florida Water and may prevent any of the planned expansions.

Nature of Monitoring Requirements:
effluent, concentrate prior to treatment, receiving water

Parameters Monitored:
Effluent: Flow, pH, total phosphorous, total nitrogen, hydrogen sulfide, chloride, DO, hexivalent chromium, radium 226 & 228, gross alpha particle activity, turbidity, total chlorine residual.  Concentrate prior to treatment: pH, hydrogen sulfide.  Receiving water: pH, chloride, gross alpha activity, DO, turbidity.

Toxicity Monitored:
Acute (Mysidopsis bahia and menidia beryllina)

COMMENTS - DEP offices:
This plant replaced the North Beaches plant that was disassembled and sold to the City of Palm Bay.  The North Beaches plant had various violations (including gross alpha).  The County built a 14 MGD pipeline to the coast but are using only 0.750 MGD of it; and it discharges to an OFW area.  This was discovered only about 1 year before after the plant was operating a short time.  The plant wanted a mixing zone for toxicity and when the DEP office investigated it discovered the OFW situation.  So there is no mix zone and no future expansion.  They may have to eliminate the outfall.  They are not passing WQ criteria for radium or gross alpha (as of 5/1/01).  As of 5/1/01 Hobart was negotiating a consent order.  Hobart has been on a clock since about December 2000 to fix the problems and has, according to DEP,  'serious problems.'

COMMENTS - Utilities - Disposal challenges:
Plant is currently in renewal with a submitted application.  DEP wants them to start finding alternatives with this plant first (South next).  County used to have a North Beach plant; now a repump station; they had permitting.  DEP said they could use that permit for the North County (Hobart) plant.  They used to discharge right into the lagoon.  Now DEP perhaps 'has egg' on their face because they realize they shouldn't have done this.  Talking about blending concentrate with effluent water from WWTP going to reuse; blending with stormwater; considering many different options.  Salinity is a bit too high where they discharge to.  They are passing toxicity tests.  Back and forth with DEP.

Receiving Water Body:
Concentrate is pumped to the Indian River at a bridge location that is the dividing line between Class II and Class III designated marine surface waters.  The discharge pipe is directed to the Class III waters by a 90 degree "L" at the point of discharge.  This area has been classified as an Outstanding Florida Water.


Plant Description:
An existing facility that generates potable water byproduct at an average daily flow of 1.2 MGD with a maximum daily flow of 1.5 MGD.

Wastewater Treatment:
Treatment for the potable water byproduct (concentrate) consists of aeration to introduce Oxygen and to reduce Hydrogen Sulfide.  Chlorination is performed to eliminate the remaining Hydrogen Sulfide.

Discharge System:
The average daily follow rate is 1.2 MGD, and the maximum daily flow rate is 1.5 MGD.  The byproduct is discharged to the Indian River County South Relief Canal, a Class III fresh water body, downstream of a control structure and thence 10,000 feet downstream into the Indian River, which, at that point, is classified as a Class III marine water body.

Mixing Zone:
Mixing zones granted for 1.  Gross Alpha, 2, Combined Radium, and Specific Conductance.

Parameters Monitored:
Flow, temperature, hydrogen sulfide, DO, total P, Total N, Gross Alpha, Radium 226 & 228, Total F, Chlorine residual, specific conductance, pH

Toxicity Monitored:
Acute (Mysidopsis bahia - 96 hour; Menidia beryllina, 96 hour)

COMMENTS - DEP offices:
As of 4/21/01 the plant had a mix zone violation.  Field inspection found many violations.  No notification of formal problems made yet.

COMMENTS - Utilities - Disposal challenges:
Has a permit but it took 3 years to get the renewal so they are going after another renewal soon.  DEP wants them to find an alternative disposal means.

COMMENTS - Utilities -Source Water:
Have six production wells all undergoing rehabilitation.

Receiving Water Body:
Concentrate is discharged to the Indian River County South Relief Canal, a Class III fresh water body, downstream of a control structure and thence 10,000 feet downstream into the Indian River, which, at that point, is classified as a Class III marine water body.


Facility:
Island Water Association RO WTP at Sanibel Island

Plant Description:
A reverse osmosis facility producing a concentrate with a design flow of 1.33 MGD and an average flow of 0.684 MGD.

Wastewater Treatment:
Treatment system consists of chlorine mixing assemblies and degassifiers for the removal of hydrogen sulfide and the addition of dissolved oxygen. (This is for the surface water disposal backup system).  Removal of hydrogen sulfide is also required for the deep well disposal system because the injection well takes both concentrate and effluent from the WWTP and the plant has an air gap between the plant and the injection well to prevent backing up of WW into the RO plant.

Discharge System:
Effluent is discharged to a Class I injection well.

Process Comments From Plant:
The facility has a surface water disposal backup system that is fully permitted with a separate permit.

Deep Injection Well Characteristics:
IW-1 is a 14 inch diameter tubing and packer Class I injection well with cemented 18 inch steel casing to approximately 2,500 feet below surface level and a total depth of 2,900 feet below surface level.  Injection is into the Oldsmar Formation.  Capacity is 5.96 MGD of RO concentrate and the emergency disposal of treated domestic effluent  from the City of Sanibel.

Monitoring Well Characteristics:
IW-1 deep monitoring well will be approximately 1650 to 1700 feet below pad level in the first transmissive zone above the confining zone.  An existing wellfield monitor well will be used as the IW-1 shallow zone monitor well.

Maximum Injection Rate:
5.96 MGD of combined disposal of concentrate and emergency disposal of secondary treated domestic effluent from the City of Sanibel.

COMMENTS - Utilities -Source Water:
The plant has 18 production wells.  Eight wells draw groundwater from the Floridan Aquifer and 10 wells draw from the Lower - Hawthorne aquifer.

SOURCE WATER - body of water:
Floridan aquifer                     Lower Hawthorne aquifer


Plant Description:
A reverse osmosis plant producing 4.0 MGD maximum design flow of concentrate.

Wastewater Treatment:
Concentrate is treated by injection of sulfuric acid to lower the pH, followed by degasification with a scrubber to remove gaseous hydrogen sulfide for odor control.  Ion exchange (IO) regenerant is added to the RO concentrate at a maximum rate of 10 gpm (permit modification of 12/1998). RO concentrate is used to regenerate the IO resin, and as such constitutes no additional flow to the disposal system.  Periodically (4 times per year) additional chloride is added to the concentrate to enhance the resin regeneration process.

Discharge System:
Treated concentrate, ion exchange regenerant, and emergency stormwater discharge are transported by 18-inch PVC pipe to the C-18 Canal, a Class II surface water body, where it is discharged by submerged diffuser, which is 120 feet in length and runs perpendicular along the bottom of the canal at a depth of approximately 8.5 feet (mean high water).  The diffuser design includes eighty 3-inch diameter ports, spaced 1.5 feet apart on center.

Mixing Zone:
A mixing zone of 1,000 feet on either side from the discharge diffuse pipe is authorized for the Class II surface water parameters fluoride and combined radium 226 & 228.  Modified in 4/26/01 to increase in length the mixing zone of fluoride and combined radium from 305 meters (1000 feet) to 400 meters on each side of the outfall.  A new mixing zone for gross alpha of 400 meters on each side of the outfall was also authorized on 4/26/01.

Consent Order/Administrative Order:
Administrative Order AO-005-SE required the study of RO concentrate discharge to resolve acute toxicity violations.  A series of reports were submitted from 1996 through 2000 and in 11/20/00 DEP issued a notice of agency action to grant a variance for acute toxicity requirements.  DEP accepted the findings that the acute toxicity was the result of ion imbalance.  Granting of the variance is contingent upon the facility's ability to obtain a mixing zone for chronic toxicity.  A notice to permit modification was issued on 4/25/01.

Parameters Monitored:
For effluent: flow, temperature, salinity, total ammonia, total nitrogen, total phosphorus, copper, fluoride, DO, pH, conductance, total residual chlorine, hydrogen sulfide, combined radium 226 & 228, gross alpha particle activity.  For receiving water: salinity, total ammonia, total nitrogen, copper, fluoride, temperature, DO, pH, conductance, combined radium 226 & 228, gross alpha particle activity.  For edge of mixing zone: sample depth, tide, fluoride, conductance, combined radium 226 & 228, gross alpha particle activity. Some toxicity test requirements may be reduced after 6 consecutive, valid semi-annual tests are completed with no violations.

Toxicity Monitored:
Acute (mysidopsis bahia, and menidia beryllina) and chronic (mysidopsis bahia: survival, growth and fecundity; and menidia beryllina: larval survival and growth).

Process Comments From Plant:
Planning to add a 9th train in FY 2006. Will install low pressure membranes in 4 trains in FY 2004.

COMMENTS - Utilities - Disposal challenges:
The Jupiter plant had difficulty beginning in the early 1990s passing whole effluent toxicity tests.  An extensive, lengthy, and costly effort to determine the cause(s) of toxicity gave visibility and credence to what later was called ion imbalance toxicity or major ion toxicity.  The toxicity issues have (in 2001) been resolved.

Receiving Water Body:
C-18 Canal, a Class II surface water body.


Permittee Contact:
James C. Reynolds, Deputy Executive Director

Plant Description:
Plant serves as an emergency RO potable water production plant.

Discharge System:
Disposal system consists of RO concentrate distribution line containing a flow meter and pressure gauges for monitoring and recording the disposal of reject to a Class V injection well located on site.

Process Comments From Plant:
The original seawater RO plant was built in Key West in 1981 to supplement water for 18 months until the new pipeline was put in.  The system was then moth-balled.  The Stock Island site and the Marathon site (about 44 miles apart) are built using some of the old equipment.   Both plants are kept on a stand-by basis for emergency backup.

COMMENTS - Utilities - Disposal challenges:
The original plant (in 1981) discharged concentrate into the shipping channel right next to the plant.  They were told by DEP that they had to get permitted for a shallow discharge well.  Both Stock Island and Marathon plants have shallow injection wells.

Deep Injection Well Characteristics:
Class V well consisting of 110 ft of 14 inch PVC casing and open interval to 155 ft.

Maximum Injection Rate:
3.00 MGD design flow and 2.33 MGD average flow permitted capacity.

COMMENTS - Utilities -Source Water:
A single shallow production well with pump set at about 30 ft down.  Well is within 30 ft of the ocean.


Plant Description:
A Zenon UF system provides an additional 2.67 MGD of filtration capacity to the existing 6.3 MGD lime softening water treatment plant.

Discharge System:
Concentrate goes to a lift station on site ant then to the WWTP which is also on site.

Process Comments From Plant:
Have expansion plans but no money yet appropriated for expansion


Plant Description:
A reverse osmosis WTP producing concentrate and miscellaneous wastewater design flow of 3.2 MGD and an annual average flow of 0.7232 MGD.

Discharge System:
Effluent is pumped by pipeline and discharge along with reclaimed water, to a Class I injection well located at the Marco Island WWTP.

COMMENTS - DEP offices:
Have an expired permit; expired in 2/01; they applied, DEP office is still in process of going back and forth; just routine items.

Deep Injection Well Characteristics:
A Class I nominal 20" diameter injection well with 24" steel casing cemented to 2,640 feet below surface level and a total depth of 3,340 feet below surface level.

Monitoring Well Characteristics:
A dual zone monitoring well monitoring a shallow zone (1,000 to 1,089 feet below surface level) and a deeper zone (1,490 to 1,600 feet below surface level).

Maximum Injection Rate:
5.76 MGD daily flow of concentrate and domestic effluent from Marco Island WWTP.


Permittee Contact:
Patricia G. Fleming, Asst. Utilities Director

Plant Description:
An existing reverse osmosis facility that produces 1.25 MGD of potable water byproduct.

Wastewater Treatment:
Air is injected into the potable water by-product transmission main upstream of the outfall to assure compliance with standards for Total Residual Chlorine and Dissolved Oxygen

Discharge System:
The 1.25 MGD design flow is discharged into the Eau Gallie River (Class III water) at designated outfall D-001.  The outfall is approximately two feet in length, discharges at a depth of approximately two feet and at approximately 100 feet downstream of the Salinity Barrier.

Consent Order/Administrative Order:
The consent order OGC-98-1562B is included as a condition and part of this permit.  The terms of the Consent Order shall govern sampling and water quality requirements until the discharge to the Eau Gallie River is terminated by implementation of deep well injection.

Parameters Monitored:
Flow, temperature, hydrogen sulfide, DO, total P, Total N, Gross Alpha, Radium 226 & 228, F, Chloride, Sodium, Turbidity, specific conductance, residual chlorine, aluminum, chromium, copper, iron, silver, zinc, pH

Biological Diversity Parameters Monitored:
Diversity Index: Shannon-Weaver: Artificial Sub.

Toxicity Monitored:
two different versions:  96 hour Acute (Cerio daphnia dubia, Menidia beryllina (inland silverside)); the other has Mysidopsis bahia (mysid shrimp) instead of the cerio

COMMENTS - DEP offices:
Consent order holds until discharge to Eau Gallie River is discontinued and deep well injection is commenced.  A well drilling test discovered an 800 foot cavity so the well was never placed in service.  The confining sequence is missing.  Melbourne applied for an aquifer exemption to violate the 10,000 ppm TDS interface - but this has not been settled yet.  Originally they proposed a pipeline to the Indian River and there was a public meeting and an uproar over this.  It may need to be considered again.  Their expansion is on hold.  (4/27/01)

Process Comments From Plant:
They are building new surface water plant permitted for 16 MGD.  With RO plant only 5 MGD it is not the primary focus.  Expansion of RO plant has been pushed out beyond the 5 year time frame.  Can't presently expand until discharge situation is resolved.

COMMENTS - Utilities - Disposal challenges:
Plant is looking for some redefinition of the injection zone from DEP but likely DEP will not let them use the deep well.  Will need either additional treatment or some other argument as to why to continue to have violations.

COMMENTS - Utilities -Source Water:
Have 3 production wells. Typically use two wells at a time and rotate them.

Receiving Water Body:
Discharge is to the Eau Gallie River (Class III water).


Permittee Contact:
Vernon Hargray, Director of Utilities/Public Works

Wastewater Treatment:
Concentrate is treated by a degassifier prior to mixing with much larger volume of effluent.  Small amount of volatiles go into the air; when do plant expansion will use scrubber.

Discharge System:
Concentrate is discharged to one of two Class I injection wells on site. Rotate injection wells about every quarter.

Process Comments From Plant:
Have two injection wells - two redundant systems; within 300 feet of each other.  One is at WTP and the other at the WWTP. Information on one is same as on the other.  Have information on IW-1 at WTP

Deep Injection Well Characteristics:
Both injection wells are 16-inch outer diameter with 13.275-ncvh outer diameter tubing set from land surface to a packer installed at approximately 3049 feet below land surface into an open hole interval from 3095 feet to 3179 feet below land surface.  One well is in backup mode.

Monitoring Well Characteristics:
A dual zone monitoring well with the upper monitor zone from 1639 feet to 1738 feet below land surface, and the lower monitor zone from 1930 to 2005 feet below land surface.

COMMENTS - Utilities -Source Water:
Have 3 production wells; rotate their use.  Fourth well coming on.


Wastewater Treatment:
Concentrate is mixed with WWTP effluent which is chlorinated.

Discharge System:
The discharge is combined with domestic effluent in range of 1:2 to 1:3.  Concentrate and effluent are land applied.  Existing system consists of two percolation basins with a combined bottom surface area of approximately 0.87 acres.  The existing system will be replaced by a new 0.43 MGD permitted capacity rapid rate land application system consisting of four percolation basins with a combined bottom surface area of approximately 2.0 acres.

Parameters Monitored:
CBOD5, TSS, nitrate, total fecal coliform, pH, residual chlorine.


Discharge System:
Concentrate is discharged to a Class I injection well located at the North Martin County WWTP.

Process Comments From Plant:
Plant is putting in new membranes in train A; putting in new train C.  System was rated at 3.56 MGD with old membranes.  New capacity for RO is 5.36 MGD in construction permit.  Won't be able to run until new deep well is ready.  Plan is for train C to be running by 2/2002.  Also putting pump on source well #4.

Deep Injection Well Characteristics:
A Class I well consisting of an internally coated 20 inch outer diameter, 0.438 inch thick API 5CT Grade K55 steel tubing to a depth of 2835 feet below land surface inside a 26 inch diameter outer diameter, 0.5 inch thick steel casing cemented to a depth of approximately 2850 feet below land surface.   For disposal of treated domestic wastewater and RO concentrate.  Injection interval is in the "Boulder Zone" in the lower Oldsmar Formation between approximately 2850 feet and the total depth of the well at approximately 3500 feet below land surface.

Monitoring Well Characteristics:
Monitored by a dual zone monitoring well.

COMMENTS - Utilities -Source Water:
Four prduction wells; two wells on site; two off.  Well 4 doesn't have a pump yet.


Facility:
Palm Beach county #9 WTP - Sandlefoot Cove

Permittee:
Palm Beach County Water Utilities Department

Plant Description:
A NF plant with 4 MGD bypass in addition to the NF MGD production.

Discharge System:
Concentrate will go to deep injection well at old #9 WWTP site about three miles to the North.

COMMENTS - Utilities - Disposal challenges:
One issue involved converting an existing sewer force main to a membrane concentrate pipeline.  They chlorinated and tested the line well.  DEP's preference was to have an air gap at the injection well.  They were able to permit this without an air gap.

Deep Injection Well Characteristics:
This existing WWTP deep well (the WWTP is no longer operating) has been converted for concentrate disposal by the addition of a tubing and packer.  The dated permit is for disposal of domestic wastewater.  This is a 24 in (OD) injection well with an open hole interval between 2540 feet and the total depth of the well at 3300 feet.

Monitoring Well Characteristics:
There is one on-site monitor well located approximately 80 feet from the injection well.


Facility:
Palm Beach County Membrane Softening WTP #3

Wastewater Treatment:
There is no treatment for concentrate going to deep injection well.  There is chlorination of the concentrate when it goes to a reuse system at the Southern Region WW Reclamation Facility.

Discharge System:
Concentrate is discharged to a Class V injection well on site.  When reuse system need is higher than can be supplied by the WWTPs, some concentrate is diverted the reuse system.

Process Comments From Plant:
An expansion is underway with bids going out in 12/01.  This is for an additional 25.5 MGD of NF with an additional 4.5 MGD of bypass and blend.

COMMENTS - Utilities - Disposal challenges:
None other than getting a tubing and packer for the deep well.   The deep well will accommodate the larger volume concentrate from the expansion.

Deep Injection Well Characteristics:
A 20-inch outside diameter injection well with a 16-inch outer diameter, 0.5 in thickness, seamless, steel tubing and retrievable liner hanger packer.  Injection interval is in the "Boulder Zone" in the lower Oldsmar Formation between 2,694 feet below land surface and the total depth of the well at 3,495 feet below land surface.  The well will be operated at a flow rate of up to 8.0 feet per second or 6.35 MGD (peak hour flow) to dispose concentrate and overflow waters from the wetlands created as advanced treatment of secondary treated effluent form the Southern Regional Water Reclamation facility.  The well can also be used for disposal of secondary treated effluent directly from the Reclamation facility.

Monitoring Well Characteristics:
A dual zone monitoring well with a lower monitoring interval of 1,920 to 1,950 feet below land surface for the purpose of monitoring below the lowermost USDW and the upper monitoring interval between 1,488 and 1,528 feet below surface level to monitor within the USDW.


Discharge System:
Concentrate is sent to the local WWTP and is blended with the eflfuent and then pumped to an irrigation field (1993).


Plant Description:
A membrane softening facility discharging a maximum of 2.625 MGD of blended concentrate.

Wastewater Treatment:
Concentrate is blended with water from the Iroquois Canal at a ratio of at least 2:3, respectively, and aerated prior to discharge.

Discharge System:
Surface water discharge is an existing discharge at outfall D001, to the Royal Palms Waterway, a Class III surface water.

Mixing Zone:
Mixing zone for iron and specific conductivity are being considered for the permit renewal.

Consent Order/Administrative Order:
Presently under an administrative order until permit renewal is issued (expected to occur in October 2001).  A.O. is to monitor at various locations.

Nature of Monitoring Requirements:
effluent, and upstream and downstream in receiving water

Parameters Monitored:
Flow, combined Ra 226 & 228, (effluent, upstream, downstream); DO (effluent, upstream, downstream); gross alpha (effluent, upstream, downstream); total iron (effluent, upstream, downstream); specific conductivity (effluent, upstream, downstream); pH (effluent, upstream, downstream)

Toxicity Monitored:
chronic (Cerio daphnia dubia (daphnia) - survival, reproduction; pimephales promelas (fathead minnow) - larval survival and growth)

COMMENTS - DEP offices:
An application for renewal has been processed and a draft permit for renewal is currently being prepared.  The current permit is administratively extended until the renewal is issues (expected to occur in early October 2001). The proposed changes are a mixing zone for iron and specific conductivity in the Royal Palms Canal. The facility will not be under a variance or consent order.  Instead DEP proposes to issue the renewal with an administrative order in order to obtain the mixing zones for iron and specific conductivity. If a mixing zone cannot be obtained, then other relief mechanisms can be sought pursuant to the proposed administrative order (e.g., treatment, variance, etc.)

Process Comments From Plant:
Due to concentrate disposal issues, lack of capacity at the WWTP, and lack of absolute need for the membrane production, in last 5 years plant has been run approximately 40% of the time.  Run one train for 12 hours. Later run the other train for 12 hours.  Now, due to growth, the membrane plant needs to operated at much higher rate.

COMMENTS - Utilities - Disposal challenges:
Long involved history of discharge challenges.  Were discharging to man-made canal that was heavily influenced by drought and rainfall and low volume that made it difficult to meet dilution requirements.  Needed extended mixing zone to make this work and DEP would not allow it.  Had to cut back operation to get by.  During last 1.5 year have discharged to WW collection system as dilution canal is just about gone.  DEP Jacksonville now allowing an extended mixing zone.  Applied for renewed permit back in January. Draft permit was mailed in early September, 2001.  Many changes.  Attached to the permit is an Administrative Order that requires them to sample discharge and also receiving stream.  This will give them 2 years to evaluate the receiving zone conditions via extensive monitoring and to have the mixing zone established.

COMMENTS - Utilities -Source Water:
The plant has 4 production wells. One is extremely high in iron at 1.7 mg/L; others are 0.3 mg/L or less.  TOC is high at 12 to 25 mg/L; this is the driving force for the NF plant.

Receiving Water Body:
Concentrate is discharged to the Royal Palms Waterway, a Class III surface water.


Plant Description:
A reverse osmosis WTP producing by-product water with an annual average permitted flow of  0.15 MGD.

Discharge System:
Byproduct is discharged to a 5.8 acre two cell evaporation/percolation pond.

Monitoring Well Parameters (non-DWI):
Water level, TDS, chloride, pH, specific conductance

COMMENTS - DEP offices:
Four monitoring wells are specified.  There is an undated minor revision made that specifies reporting noncompliance   - no problem (4/25/01)

Process Comments From Plant:
In the process of increasing capacity from 1.5 to 2.25 MGD by adding a new train. Plant is only running at max during the tourist season of December through April which corresponds to the dry conditions.

COMMENTS - Utilities - Disposal challenges:
Permit will be modified to allow increase in capacity.    The evaporation ponds can easily handle the increase.  They are expecting DEP to not allow the pond discharge.  Thus they are starting the process to get a deep well construction permit.  This may be the only future option as the surface waters are Outstanding Florida Waters.


Permittee Contact:
Terry Briggs, Superintendent of Water Supply

Plant Description:
An existing RO drinking water treatment plant with a design concentrate flow of 0.500 MGD (maximum daily flow).

Wastewater Treatment:
Discharge pipe has an air bubble diffuser, a hydrogen peroxide feed system, caustic soda feed system increase dissolved oxygen and decrease sulfides.  .

Discharge System:
Concentrate is discharged at an existing outfall D-001 in the West Branch of Coral Creek which is a Class III water body.  The point of discharge is 25 feet from shore and discharges at the bottom of the creek at a depth of approximately 3 feet.

Mixing Zone:
Mixing zones are defined as circles with radii of 25 feet, 305, and 700 feet around the diffuser port for copper, combined radium 226 & 228, and acute toxicity respectively.

Consent Order/Administrative Order:
A consent order (OGC Case No. 00--566-08-IW) executed by the DEP on June 16, 2000, and an administrative order (Administrative Order No. AO-014-SD) requires that facility to eliminate the surface water discharge or comply with all the requirements of Chapter 62-302, F.A.C. by December 15, 2001.

Variance:
Variance from the 100:1 dilution ratio under critical conditions and toxicity testing requirements

Parameters Monitored:
Flow, TSS, total P, hydrogen sulfide, DO, pH, TDS, combined 226 & 228, gross alpha, Cu, F, Ag, acute toxicity

Toxicity Monitored:
Acute (mysidopsis bahia and menidia beryllina)

COMMENTS - DEP offices:
Have a permit and issue of variance to put water into a creek; have a consent order to take it out of there. They got a variance to give them a year to do this; very old plant; they are not sure what they are going to do; plant just bought by Charlotte County; may close plant, may do DWI, may just close the RO section.

Process Comments From Plant:
Rotunda West was sold to Aquasource in 12/98 and then sold to the County in 12/00.

COMMENTS - Utilities - Disposal challenges:
Plant's position is that plant was previously poorly run and not in compliance but was back in compliance within months once County was involved.   The discharge line now has a fine air bubble diffuser, addition of peroxide, and addition of caustic soda.  There were several items that previous operator and support organizations were supposed to address but never did.  County has never signed the Consent Order.  Current meetings (10/01) are attempting to resolve the issues.  County wants to continue to discharge at the site.

Receiving Water Body:
West Branch of Coral Creek which is a Class III water body.


Plant Description:
Presently run only one train at a time; run at 0.75 MGD

Discharge System:
Effluent from WWTP goes to deep well but limited by 5% rule in deep well as to how much concentrate can be disposed to deep well; so can only put about 0.2 MGD concentrate down the well.  The rest is recycled to the lime softening plant where it is treated with ion exchange; organics and color are removed.

COMMENTS - Utilities - Disposal challenges:
In process of providing DEP with information in hopes of getting a variance to the WWTP UIC permit to allow greater concentrate volume disposal to the deep well.


Plant Description:
A reverse osmosis plant producing 0.115 MGD, maximum design flow, of concentrate.  The plant is operated for about 13 hours per day for seven days per week and provides water treatment service for up to 665 housing units.

Wastewater Treatment:
Concentrate is treated by pH adjustment with the addition of sodium hydroxide solution and aeration through a gravel bed trench to remove excess hydrogen sulfide.

Discharge System:
The treated concentrate is disposed of via a catch basin to the first unit (lake no. 1) of a series of five, non-jurisdictional, storm water detention lakes on the development's golf course, which have an estimated total storage capacity of 26 million gallons.   The golf course lakes discharge periodically during rainfall events from the last lake (lake no. 5) through an outfall to a salt water marsh area that flows to a salt water lagoon ("harbor"), which has an open connection to the Indian River (Class II Outstanding Florida Waters).  The discharge to the harbor consists of mostly storm water runoff to the detention lakes and a relatively small portion of RO concentrate.  Records in the SFWMD office indicated the harbor is designed to be completely flushed every 24 hours through a 94 foot wide by 6 foot high box culvert system which runs from the St. Lucie Inlet to the harbor.  The outfall, which is also water control structure no. 3, consists of a 96-inch diameter drop inlet and outfall pipes.

Nature of Monitoring Requirements:
effluent to catch basin and combined effluent outfall to harbor (concentrate plus stormwater)

Parameters Monitored:
effluent: flow, pH, TSS, chloride, DO, fluoride, hydrogen sulfide, combined radium 226 & 228, total nitrogen, total phosphorus; combined effluent: pH, fluoride, combined radium 226 & 228.

Process Comments From Plant:
A seasonal facility that operates 365 days a year; no plans for expansion.

COMMENTS - Utilities - Disposal challenges:
For first 10 years concentrate was discharged to a river.  This was freshening the receiving water and attracting Manatees and tropical fish.  DEP made them stop this discharge; said it was creating an H2S bacteria problem.  No permitting problems other than minor ones.

COMMENTS - Utilities -Source Water:
Have two wells that are tied together to provide a composite feed. All wells are within 1/4 mile of plant on the 600 acre island.

Receiving Water Body:
Concentrate travels from lakes to salt water marsh to salt water lagoon to Indian River (Class II Outstanding Florida Water).


Plant Description:
An private utility system to supply potable water.  The RO system produces concentrate at the rate of 36,000 gpd average daily flow and maximum daily flow rate of 56,000 gpd.

Wastewater Treatment:
Concentrate is treated in an aeration tower to remove hydrogen sulfide.

Discharge System:
Disposal is by discharge to Class G-II ground water via subgrade disposal system in a 10,400 square foot area drainfield.  The system has a design flow of 56,000 gpd based on historical permitting and site specific criteria.

Nature of Monitoring Requirements:
concentrate prior to point of entry to drainfield

Parameters Monitored:
Flow, TDS, chloride, sodium, sulfate, pH

COMMENTS - DEP offices:
There have been complaints; people felt the drainfield was impacting their septic tanks.  Inspectors say drainfield is in compliance.


Plant Description:
A reverse osmosis WTP producing concentrate of daily flow of approximately 42,000 gpd based on a flow rate of 92 gpm and a 7-hour operation schedule; but flow can vary.  Maximum concentrate daily flow is 0.193 MGD.

Wastewater Treatment:
Treatment is achieved in two steps.  Blending with dilution water (stormwater and groundwater) at a minimum blending ratio of 5:1 before being discharged into the onsite stormwater management system. The dilution water is supplied by lake no. 7, which in turn is replenished by groundwater flow and a series of feeder lakes upstream including lakes no. 8, 9, 10, and 11.  Further dilution of the blended effluent with the stormwater in a series of stormwater lakes before it reaches the offsite canals.  The 5:1 blended effluent is first discharged into lake no. 2, which then flows in sequence through lakes no. 3, 4, and 6.  Lake no. 4 is connected to Fort Pierce Farms Water Management District (FPFWMD) canal no. 9 via water control structure no. 5 at the northern end of the lake.  Lake no. 6 is connected to FPFWMD canal no. 10 via water control structure no. 4 at the southern end of the lake.

Discharge System:
The blended effluent is further diluted with stormwater in the onsite stormwater management system before it is discharged to the offsite surface water at FPFWMD canals no. 9 and 10.  The receiving waters at the offsite canals are classified as Class III (Fresh) Surface Water.  In general, the ambient water                                       quality for the canals in the project area has been impacted to various degrees by agricultural runoff.  However, the FPFWMD canal no. 9 has been altered in recent years as the section of the canal west of (upstream) of the outfall for lake no. 4 has been filled.  The canal now essentially originates near the outfall and consists of mostly stormwater discharged from lake no. 4.

Parameters Monitored:
for blended effluent: flow, specific conductance, pH, TDS, un-ionized ammonia, hydrogen sulfide, sulfate; for lakes 2, 4, 6, 7: specific conductance; for canal no 10: specific conductance, pH, TDS, un-ionized ammonia

COMMENTS - Utilities - Disposal challenges:
The disposal permit conditions were tied to the background receiving water quality which can vary.  The present permit is that the discharge meets Class III surface water standards or not exceed 3000 microohms/cm.  With the recent drought the dilution water quality has been deteriorating and thus the discharge water quality has been deteriorating.  However, with the receiving water standard just mentioned the discharge is still in compliance.  Because of this situation the Engineer is currently working on a plan where concentrate would be mixed with WWTP effluent and used to irrigate golf course and consequently recharge of the surficial aquifer.

Receiving Water Body:
FPFWMD canals no. 9 and 10.  The receiving waters at the offsite canals are classified as Class III (Fresh) Surface Water.


Facility Street:
2 Lindy Loop, Spruce Creek Fly-in Subdivision

Permittee:
Volusia County Department of Public Works

Permittee Contact:
F. Thomas May, Utility Operations Manager

Plant Description:
A reverse osmosis WTP that produces an average combined daily flow of 0.080 MGD of byproduct water with a maximum of 0.088 MGD. Modification of 3/14/2000 increased maximum daily flow to 0.125 MGD. The system is for polishing. It is a low recovery system.

Wastewater Treatment:
The facility uses an air stripper for Hydrogen Sulfide removal prior to discharge into the disposal system.

Discharge System:
Discharge to a Class G-II groundwater after transmission from the WTP to the site of the old Spruce Creek WWTP in a 4 inch diameter main. Disposal is via percolation in a one cell, 2.3 acre impoundment.  The disposal system has a design capacity of 0.350 MGD from a prior domestic Wastewater Permit.  The disposal system is designated Land Application System G-001.  The systems is located approximately the same latitude and longitude as the plant.

Nature of Monitoring Requirements:
end-of pipe, 13 feet deep monitoring wells

Parameters Monitored:
Flow, chloride, Fluoride, Manganese, Sodium, Sulfate, TDS, pH

Monitoring Well Parameters (non-DWI):
ground water elevation, chloride, pH, sodium, sulfates, TDS, turbidity

Process Comments From Plant:
New membranes and new antiscalant were introduced prior to 9/2000 and acid addition is no longer needed (stated in an application for a minor permit revision dated 9/2000).  The request was to change the maximum daily flow concentrate from 0.080 to 0.125 MGD.

COMMENTS - Utilities -Source Water:
Have production 3 wells; 2 are 12" diameter with high capacities; water is hard but not brackish.


Wastewater Treatment:
Iron is removed from the concentrate prior to sending the concentrate to the WWTP reuse system on site.

Discharge System:
Concentrate previously was discharged to the front end of the WWTP.  Since early 2000, an iron removal system treats the concentrate which then goes to the WWTP reuse system.  The reuse system is a 0.990 MGD permitted capacity slow-rate public access consisting of approximately 400 total acres which includes a golf course, residential home sites, median strips and 1,100 additional residential irrigable acres progressively available as new homes are built.

Nature of Monitoring Requirements:
NO requirements specific to the RO system.

COMMENTS - Utilities - Disposal challenges:
Originally the concentrate went to the headworks of the on site WWTP.  In early 2000, a brine treatment unit was built to remove substantial amounts of iron from the concentrate.  Now the concentrate goes into a wastewater pond for reuse as irrigation water.

COMMENTS - Utilities -Source Water:
Have 12 production wells, some on site, some off.


Plant Description:
This is a seawater RO plant that uses old membranes and old equipment.

Discharge System:
Concentrate is discharged to a Class V injection well that has been converted from an Aquifer Storage and Recovery well under separate permit application number 130768-001-UC.  Membrane cleaning system water and plant washdown/spill water of a design flow of 0.021 MGD will also be discharged to the Class V injection well.

Deep Injection Well Characteristics:
A Class V injection well that has been converted from an Aquifer Storage and Recovery well under separate permit application number 130768-001-UC.  Well consists of 112 ft of 15 inch PVC casing and open interval to 250 ft.

COMMENTS - Utilities -Source Water:
Have two shallow production well with pumps set at about 30 ft down.  Wells are within 30 ft of the ocean.


Plant Description:
Getting ready(10/01) to change membranes and pressure vessels.  They have been using the Permasep system.

Discharge System:
Concentrate goes directly to the local utility sewer

Process Comments From Plant:
Design capacity was about 0.2 MGD; operating at less than 0.1 MGD.

COMMENTS - Utilities - Disposal challenges:
Originally disposed of concentrate to a lake on the site.  Had several monitoring wells which have since been abandoned now that they dispose to the sewer.


Plant Description:
A seawater reverse osmosis plant producing a design average concentrate of 19.5 MGD with a daily maximum of 22.8 MGD.

Wastewater Treatment:
A portion of the membrane plant discharge made up of supernatant from sedimentation treatment of filter backwash water is aerated.

Discharge System:
The discharge from the membrane plant is a combined RO concentrate, treated filter backwash/rinse water, and sludge filtrate.   The cleaning solution generated during periodic RO membrane cleaning will be diverted to a scavenger tank for off-site disposal. The remaining membrane cleaning rinse water will be routed to the discharge pump station. The plant discharge is from four internal outfalls to the TECO Big Bend Power Station's cooling water discharge conduits, downstream of the RO source water withdrawal point, thence to TECO Big Bend discharge canal, with final discharge to Hillsborough Bay, a Class III marine water.  The filter backwash will be aerated to insure that the membrane plant discharge is of higher DO than the cooling water it is diluted with from the TECO discharges.

Nature of Monitoring Requirements:
final combined effluent, internal membrane plant discharge, membrane plant intake, water quality monitoring program (receiving water)

Parameters Monitored:
Final combined effluent: flow, chloride, salinity, total recoverable copper, iron, total recoverable nickel, combined radium 226 & 228, gross alpha;  Internal membrane plant discharge: flow, DO, chloride, conductivity, salinity, total recoverable copper, lead, total recoverable nickel, combined radium 226 & 228, gross alpha, pH;  membrane plant intake: DO, chloride, conductivity, salinity, total recoverable copper, lead, total recoverable nickel, combined radium 226 & 228, gross alpha; water quality monitoring program (receiving water - at three monitoring stations): conductivity, salinity, DO, temperature, chloride, pH.

Biological Diversity Parameters Monitored:
Biological monitoring program: to be defined within 3 months of the effective date of the permit; will include, as a minimum, monitoring of submerged grasses, benthic macroinvertebrates, and fish.

Toxicity Monitored:
Chronic (Mysidopsis bahia: survival, growth, and fecundity; Menidia beryllina: larval survival and growth).  Tests run on samples of the combined discharge. Tests to continue bimonthly until 6 consecutive, valid test are completed.

Process Comments From Plant:
The first large-scale seawater RO system in the US.

COMMENTS - Utilities - Disposal challenges:
This is the most studied concentrate disposal situation in the history of DEP.  Extensive rounds of review and changes have taken place with DEP and with Hillsborough County.   As of 11/01, all permitting conditions have been met, an adminstrative hearing brought on by an environmental/lobby group, SEBAC, has been ended with the judge finding no fault with the project, and the permit is in the final stage of 'exception to recommend order.'   Construction has begun.

COMMENTS - Utilities -Source Water:
Power plant condenser cooling water discharge from TECO Bid Bend Power Station.

SOURCE WATER - body of water:
Tampa Bay water run through cooling system


Plant Description:
An NF plant producing approximately 400,000 gpd of concentrate.

Discharge System:
Concentrate is mixed with approximately 0.5 MGD WWTP effluent at very end of chlorine contact chamber.  This is combined with a ground water irrigation well effluent before being discharged to the Martin county Consolidated Reuse system (South County).  This system receives the treated effluent from two other Martin County WWTPs.   The system is permitted with four surface water discharge sites (one is for emergency overflow use only) and three land application sites.  Most of these options are connected with golf courses (5 different ones).  Some options involved storage ponds (prior to surface discharge); some involve irrigation; some involve percolation ponds at two of the WWTPs and one of the golf courses.  The permit appears to allow for all of these options.  Plant operator described the concentrate disposal as the blend going to a pond which is used for irrigation of a golf course.

Disposal Latitude:
Can be any one of several surface discharge and reuse disposal sites.

Disposal Longitude:
Can be any one of several surface discharge and reuse disposal sites.

Nature of Monitoring Requirements:
Depends on which surface discharge, percolation pond, or irrigation system is used.

Parameters Monitored:
Depends on which surface discharge, percolation pond, or irrigation system is used.

Monitoring Well Parameters (non-DWI):
Depends on which surface discharge, percolation pond, or irrigation system is used.

Process Comments From Plant:
The present 1.5 MGD NF plant will be expanded to 13 MGD.  The additional capacity will be RO with source water from the Floridan aquifer.  This will be completed in about 2004.

COMMENTS - Utilities - Disposal challenges:
In past had a TDS problem with the reuse water but added water from a 'dilution well'. No present problems with the reuse system.   For the future expansion, a deep well will be built and used.

COMMENTS - Utilities -Source Water:
Have eight production wells providing poor quality water.  They have had problems with iron and are on their third set of membranes.

Receiving Water Body:
Concentrate is combined with ground water irrigation well effluent before being discharged to the Martin county Consolidated Reuse system (South County).  This system receives the treated effluent from two other Martin County WWTPs.   The system is permitted with four surface water discharge sites (one is for emergency overflow use only) and three land application sites.  Most of these options are connected with golf courses (5 different ones).


Permittee Contact:
Mr. Lawrence J. Keating, Director of Water & Sewer

Plant Description:
An existing facility that treats water from a groundwater source to produce potable water.  The potable water treatment facility produces a design flow of 2.0 MGD of product water based on the one existing RO skid, which results in a concentrate design flow of 0.5 MGD (average daily flow).

Wastewater Treatment:
The potable water byproduct is treated with a forced air stripping tower for removal of hydrogen sulfide and to increase dissolved oxygen concentrations.  There is a treatment system that treats the hydrogen sulfide released into the air.

Discharge System:
Surface Water Discharge Systems D-001:  A 0.5 MGD average daily flow of treated potable water byproduct is permitted to discharge to the surfaces waters of the State via outfall D-001.  The byproduct water is conveyed via a 5.750 L.F. 16 inch diameter PVC pipeline thence a 52 L.F. 24 inch diameter pipe discharges to the Indian River Farms control district Main Canal, a Class III marine surface water body of the State.  The 24 inch diameter submerged discharge pipe at Outfall D-001 extends 21 feet from the side of the canal and discharges at a depth of approximately four feet.  The Main Canal flows east 4,300 feet and discharges to the |Indian River, also a Class III marine water body at this location.

Mixing Zone:
1. Gross Alpha extending five meters (16.4 feet) upstream and 55 meters (180 feet) downstream from the outfall.  2.  Combined Radium extending five meters (16.4 feet) upstream and 25 meters (82 feet) downstream from the outfall in the canal.  3.  Chronic Toxicity subject to issuance of a Variance for Acute Toxicity.   The mixing zone for Chronic Toxicity is five meters (16.4 feet|) upstream and sixteen meters (52.2 feet) downstream from the point of discharge.

Consent Order/Administrative Order:
The consent order OGC-99-0971 is included as a condition and part of this permit.  The CO requires VB to (1) initiate a petition for variance from acute toxicity standards, (2) to conduct chronic definitive toxicity studies and a dilution study to determine a chronic toxicity mixing zone, and (3) provide data for fluoride to evaluate the need for a fluoride mixing zone.  The approval of a chronic toxicity mixing zone shall be contingent upon issuance of the Department's approval of the variance for acute toxicity.

Parameters Monitored:
Flow, hydrogen sulfide, DO, total P, Total N, Gross Alpha, Radium 226 & 228, Total F, Nickel, Iron

Biological Diversity Parameters Monitored:
Reduction from Base Line, temperature, salinity, pH

Toxicity Monitored:
Chronic (Mysidopsis bahia survival, growth, and fecundity and Menidia beryllina, Larval Survival and Growth)

COMMENTS - DEP offices:
The Vero Beach plant is in a good situation now with their new permit.  This was after a considerable amount of effort devoted to ion imbalance tests that explained the likely cause of failed WET test as due to high calcium and to a lesser extent, high fluoride.

COMMENTS - Utilities - Disposal challenges:
Have had toxicity challenges due to major ions.  Expansion is difficult because of disposal of concentrate.  There are limited flows in the canal where concentrate is discharged so mixing zones could not be maintained.  Other factors are future TMDL and nutrients as well as toxicity.  Only viable option in future may be deep well injection and the cost is prohibitive.

COMMENTS - Utilities -Source Water:
Have 3 production wells for the RO plant.

Receiving Water Body:
Concentrate is discharged to the Indian River Farms control district Main Canal, a Class III marine surface water body of the State.  The Main Canal flows east 4,300 feet and discharges to the |Indian River, also a Class III marine water body at this location.


Plant Description:
A reverse osmosis WTP concentrate with maximum design flow of 1.3 MGD, and average operational flow of 0.65 MGD.

Wastewater Treatment:
Concentrate treatment includes injection with hydrogen peroxide to remove excess hydrogen sulfide; complete reaction will be achieved by mixing within the conveyance pipe.

Discharge System:
Treated concentrate is transported by pipe to the Jupiter Inlet, a Class III surface Water, where it is discharged by submerged diffuser 20 feet in length, which runs perpendicular along the north side slope of the channel adjacent to the east side of the US highway 1 bridge at a depth of approximately 7.5 feet (mean low water).  Diffuser design includes 70 1-inch diameter holes, discharging horizontally on each side of the 6-inch diffuser pipe (140 ports total).

Mixing Zone:
A mixing zone of 145 feet on either side of the discharge diffuse pipe for fluoride, combined radium 226 & 228, and DO.

Nature of Monitoring Requirements:
effluent, edge of mixing zone, receiving water

Parameters Monitored:
Effluent: Flow, temperature, conductance, salinity, ammonia, total nitrogen, total phosphorus, copper, fluoride, DO, pH, hydrogen sulfide, combined radium 226 & 228, gross alpha (1996 draft).  Edge of mixing zone: salinity, total ammonia, fluoride, total nitrogen, copper, temperature, DO, conductance, pH, combined radium 226 & 228, gross alpha particle activity (1998 modification).  Receiving water at 3 stations: temperature, DO, conductance, total ammonia, salinity, total nitrogen, copper, pH, combined radium 226 & 228, gross alpha particle activity, fluoride (1998 modification).

Biological Diversity Parameters Monitored:
Benthic macroinvertebrates (taxa richness, Shannon-Weaver diversity, numbers of pollution sensitive taxa, community structure, algal biomass, trophic composition/feeding guilds).  Seagrass Survey.

Toxicity Monitored:
Acute and chronic.  Acute (Mysidopsis bahia and Menidia beryllina) on effluent.  Chronic (Mysidopsis bahia: survival, growth, and fecundity; Menidia beryllina: larval survival and growth) on effluent.  (1996 draft)

COMMENTS - DEP offices:
Reductions in monitoring requirements will be considered after the initial 12 months of plant operation: If there is no evidence that the discharge is not in compliance  with the effluent standards, or if the degree of effluent variability does not warrant more frequent monitoring.

Process Comments From Plant:
Have operated about 300 days since start in early 2000.  Have operated less than 24 hours per day many times.  RO system makes 1.2 MGD; surficial plant makes 2.73 MGD and they purchase 1.5 MGD from City of Jupiter.  Only average around 3.5 MGD.  Always use the water from City of Jupiter since they are paying for it.  With restrictions enforced by drought conditions they are loaded with water and have shut down more than they would otherwise.

COMMENTS - Utilities - Disposal challenges:
Have permit but are still working on getting a reduction in testing/monitoring required.

COMMENTS - Utilities -Source Water:
Have two prducction wells drawing from the Floridan aquifer.

Receiving Water Body:
Jupiter Inlet, a Class III surface Water


Permittee Contact:
Andy Maddox, Supervisor of Water and Wastewater

Plant Description:
An NF plant built to treat for TDS and sulfate.

Discharge System:
Concentrate goes to WWTP adjacent to WTP.


# tblSourceWaterQuality

Facility:
Island Water Association RO WTP at Sanibel Island


Facility:
City of Sunrise Sawgrass Membrane Softening WTP


Facility:
Palm Beach County Membrane Softening WTP #3


Facility:
Palm Beach county #9 WTP - Sandlefoot Cove


# tblWithdrawal

Facility:
Island Water Association RO WTP at Sanibel Island


Facility:
Palm Beach county #9 WTP - Sandlefoot Cove


Facility:
City of Sunrise Sawgrass Membrane Softening WTP


