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Warm Mineral Springs

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Water Quality Sampling Sites
Hydrology Sampling Sites

Water Quality

The water that discharges from springs provide a means of determining the quality of water in the aquifer as well as the degree of human impact in the springshed. A number of factors influence ground-water chemistry. These include the precipitation chemistry, surface conditions at the site of recharge, soil type in the recharge area, mineralogy and composition of the aquifer system, nature of aquifer system porosity and structure, flow path in the aquifer, residence time of the water in the aquifer, mixing of other waters in the aquifer system, and aquifer microbiology.1

[1] For more information on what the parameters mean see the section on Physical Field Parameters in the Water Quality section of the Springs of Florida, Florida Geological Survey Bulletin 66.

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Water Quality Data

Explore general as well as scientific information about the movement, chemistry and biology of area surface water environments.

Parameter Latest Value Historical Range Additional Information
Alkalinity, Total (total hydroxide+carbonate+bicarbonate) 128 mg/l CaCO3
09/14/2011 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
0.59 - 128 mg/l CaCO3
09/14/2011 - 09/14/2011
2 samples
Apparent Color 7.5 PCU
12/08/2020 10:37 AM
Source: SARASOTA_COASTALCREEK_WQ
2 - 150 PCU
03/04/2003 - 12/08/2020
211 samples
BOD, Biochemical oxygen demand 1.23 mg/l
05/13/2025 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
0.5 - 3.99 mg/l
03/04/2003 - 05/13/2025
219 samples
Calcium 501 mg/l
09/14/2011 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
501 - 512 mg/l
03/04/2003 - 09/14/2011
2 samples
Chloride 11027 mg/l
09/14/2011 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
10000 - 11027 mg/l
03/04/2003 - 09/14/2011
2 samples
Chlorophyll a, corrected for pheophytin 5.11 ug/l
05/13/2025 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
0.16 - 11.5 ug/l
11/26/2007 - 05/13/2025
226 samples
Chlorophyll a, uncorrected for pheophytin 0.25 ug/l
12/11/2018 09:21 AM
Source: SARASOTA_COASTALCREEK_WQ
0.16 - 4.68 ug/l
02/18/2016 - 12/11/2018
35 samples
Dissolved oxygen (DO) 1.31 mg/l
05/13/2025 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
0.06 - 9.07 mg/l
03/04/2003 - 05/13/2025
177 samples
Dissolved oxygen saturation 18.38 percent (%)
05/13/2025 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
0.6 - 106.8 percent (%)
12/12/2007 - 05/13/2025
209 samples
Elevation, water surface 9.4 ft
02/22/1962 12:00 AM
Source: USGS_NWIS
9.4 - 9.4 ft
02/22/1962 - 02/22/1962
1 samples
Enterococcus Group Bacteria 41 cfu/100ml
05/13/2025 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
1 - 820 cfu/100ml
03/04/2003 - 05/13/2025
131 samples
Fecal Coliform 30 cfu/100ml
05/13/2025 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
1 - 7100 cfu/100ml
03/04/2003 - 05/13/2025
242 samples
Hardness, Ca + Mg 3656 mg/l CaCO3
09/14/2011 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
3656 - 3656 mg/l CaCO3
09/14/2011 - 09/14/2011
1 samples
Magnesium 584 mg/l
09/14/2011 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
584 - 616 mg/l
03/04/2003 - 09/14/2011
2 samples
Nitrogen 1 mg/l
01/15/2025 10:14 AM
Source: SARASOTA_COASTALCREEK_WQ
0.19 - 2.9 mg/l
03/04/2003 - 01/15/2025
227 samples
Nitrogen 1004 ug/l
01/15/2025 10:14 AM
Source: SARASOTA_COASTALCREEK_WQ
187 - 2896 ug/l
03/04/2003 - 01/15/2025
227 samples
Nitrogen, ammonia as N 0.8 mg/l
01/15/2025 10:14 AM
Source: SARASOTA_COASTALCREEK_WQ
0 - 1.46 mg/l
03/04/2003 - 01/15/2025
240 samples
Nitrogen, ammonia as N 1040 ug/l
05/13/2025 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
0.1 - 1460 ug/l
03/04/2003 - 05/13/2025
236 samples
Nitrogen, Kjeldahl 1 mg/l
01/15/2025 10:14 AM
Source: SARASOTA_COASTALCREEK_WQ
0.18 - 2.89 mg/l
03/04/2003 - 01/15/2025
226 samples
Nitrogen, Kjeldahl 1040 ug/l
05/13/2025 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
183 - 2890 ug/l
03/04/2003 - 05/13/2025
224 samples
Nitrogen, Nitrite (NO2) + Nitrate (NO3) as N 0.01 mg/l
01/15/2025 10:14 AM
Source: SARASOTA_COASTALCREEK_WQ
0 - 0.34 mg/l
03/04/2003 - 01/15/2025
238 samples
Nitrogen, Nitrite (NO2) + Nitrate (NO3) as N 8 ug/l
05/13/2025 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
4 - 337 ug/l
03/04/2003 - 05/13/2025
231 samples
pH 7.16
05/13/2025 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
4.8 - 8
03/04/2003 - 05/13/2025
220 samples
Phosphorus as P 0.08 mg/l
01/15/2025 10:14 AM
Source: SARASOTA_COASTALCREEK_WQ
0 - 0.83 mg/l
03/04/2003 - 01/15/2025
247 samples
Phosphorus as P 80 ug/l
05/13/2025 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
2 - 826 ug/l
03/04/2003 - 05/13/2025
246 samples
Phosphorus, phosphate (PO4) as P 0 mg/l
05/13/2025 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
0 - 0.29 mg/l
11/26/2007 - 05/13/2025
256 samples
Potassium 217 mg/l
09/14/2011 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
181 - 217 mg/l
03/04/2003 - 09/14/2011
5 samples
Salinity 18.07 ppt
01/19/2016 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
0.42 - 18.68 ppt
11/26/2007 - 01/19/2016
88 samples
Secchi disk depth 1.31 ft
11/13/2018 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
0.33 ft - 8.2 ft
02/18/2016 - 11/13/2018
30 samples
Sodium 5748 mg/l
09/14/2011 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
5260 - 5748 mg/l
03/04/2003 - 09/14/2011
2 samples
Specific conductance 29200 umho
08/23/2025 12:00 AM
Source: USGS_NWIS
863 - 32726.6 umho
03/04/2003 - 08/23/2025
2804 samples
Sulfur, sulfate (SO4) as SO4 1702 mg/l
09/14/2011 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
1700 - 1702 mg/l
03/04/2003 - 09/14/2011
2 samples
Temperature, water 86 °F
08/23/2025 12:00 AM
Source: USGS_NWIS
71.6 - 189.02 °F
03/04/2003 - 08/23/2025
2998 samples
Total Organic Carbon (TOC) 2.28 mg/l
09/14/2011 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
1.6 - 2.8 mg/l
03/04/2003 - 09/14/2011
4 samples
Total Suspended Solids (TSS) 43.6 mg/l
05/13/2025 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
0.57 - 46 mg/l
03/04/2003 - 05/13/2025
222 samples
Turbidity 0.46 NTU
10/10/2017 12:00 AM
Source: SARASOTA_COASTALCREEK_WQ
0.4 - 7.34 NTU
03/04/2003 - 10/10/2017
155 samples

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