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Clower Creek Condition Report for 2015

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Caution

3 out of 4 indicators were rated as PASS.

All four indicators must pass
for the creek to be rated as PASS.

Learn more about how this report is created

  • Size: 284 acres
  • Location: Central Sarasota County
  • Discharges into: Little Sarasota Bay

The surface water system in the Clower Creek Basin has undergone major alterations over the past 100 years. Historical survey does not identify Clower Creek by name, but aerial photographs and survey from the mid-1900s confirm the presence of agriculture and the extent of the creek, which meandered northeast through the entire basin and terminated at a wetland near the east basin boundary. The entirety of Clower Creek is predominantly marine. Development in the basin was well under way by the 1970s. The basin is about 85% developed, with over 40% commercial development. Stormwater from these commercial areas flows through a network of pipes and ditches to Clower Creek. For basin details see: Little Sarasota Bay Water Quality Management Plan (2012)

Creek Location Map

Water Chemistry Ratings - Freshwater Portion of the Creek

Total nitrogen, total phosphorus, chlorophyll a, and dissolved oxygen levels are monitored carefully by water resource managers and used by regulatory authorities to determine whether a creek meets the water quality standards mandated by the Clean Water Act. Shown below are water quality data for each freshwater stream segment. Florida law defines a threshold for the maximum allowable concentration of nitrogen, phosphorus, and chlorophyll a, and the minimum required concentration of dissolved oxygen in these streams. Learn more about these ratings and how they are calculated »

Water quality data are not available for the freshwater portion of this creek.

Water Chemistry Ratings - Tidal Portion of the Creek

As is the case for predominantly freshwater streams, total nitrogen, total phosphorus, and chlorophyll a levels are monitored carefully by water resource managers and used by regulatory authorities to determine whether a tidally-influenced stream meets the water quality standards mandated by the Clean Water Act. Shown below are water quality data for each saltwater water body within this basin. Florida law defines a threshold for the maximum allowable concentration of chlorophyll a and the minimum required concentration of dissolved oxygen in these streams. No thresholds have been established for the allowable concentration of nitrogen or phosphorus; trend information is provided for these nutrients, to determine whether a statistically significant trend exists and if so, whether levels are rising (bad) or falling (good). Learn more about these ratings and how they are calculated »

Data for the following WBIDs is averaged when compiling the data below:
  • 1975A
Pass

Chlorophyll a

Score: Pass
Units: mg/l Year
2015
Historical
period of record
High 0.0 0.2
Mean 0.0047 0.0044 0.01330449
Low 0.0007 0.0001
No. of Samples 13 329

Five-year Trend Graph

     
1/1/20117.1450.0071400mg/l0.0070100
2/1/20111.4150.0042800mg/l0.0014000
3/1/20112.5650.0037000mg/l0.0024900
4/1/20118.4150.0048800mg/l0.0081000
5/1/20113.6250.0046300mg/l0.0035700
6/1/201112.3850.0059200mg/l0.0123500
7/1/20118.4050.0061300mg/l0.0060600
8/1/201111.8450.0078700mg/l0.0113000
9/1/20118.2950.0088200mg/l0.0082800
10/1/201122.9450.0112500mg/l0.0184800
11/1/20117.2750.0118500mg/l0.0072400
12/1/20115.8250.0107600mg/l0.0051200
1/1/20121.2850.0095700mg/l0.0012600
2/1/20121.7250.0078900mg/l0.0017200
3/1/20124.5550.0072600mg/l0.0045500
4/1/20121.9650.0037700mg/l0.0019500
5/1/20128.3030.0039400mg/l0.0083000
6/1/20126.1530.0039900mg/l0.0061500
7/1/20128.1130.0051300mg/l0.0081100
8/1/201220.2030.0082100mg/l0.0202000
9/1/201211.6030.0093900mg/l0.0116000
10/1/20125.9930.0100600mg/l0.0059900
11/1/20123.6930.0092900mg/l0.0036900
12/1/20123.5730.0088600mg/l0.0035700
1/1/20137.2130.0087100mg/l0.0072100
2/1/20134.7130.0061300mg/l0.0047100
3/1/20131.4630.0044400mg/l0.0014600
4/1/20131.4630.0036800mg/l0.0014600
5/1/201343.9030.0103900mg/l0.0439000
6/1/201324.9030.0139400mg/l0.0249000
7/1/20137.1030.0139200mg/l0.0071000
8/1/201324.9030.0172900mg/l0.0249000
9/1/20138.5830.0184700mg/l0.0085800
10/1/20138.4030.0196300mg/l0.0084000
11/1/20133.7720.0129400mg/l0.0037700
12/1/20136.2930.0098400mg/l0.0062900
1/1/20141.1740.0088500mg/l0.0011700
2/1/20141.1140.0048900mg/l0.0011100
3/1/20144.9640.0042800mg/l0.0049600
4/1/20141.0030.0030500mg/l0.0010000
5/1/20142.0130.0027600mg/l0.0020100
6/1/20144.1940.0024100mg/l0.0041900
7/1/20143.4240.0027800mg/l0.0034200
8/1/20144.8940.0034100mg/l0.0048900
9/1/201411.6040.0045200mg/l0.0116000
10/1/20147.9040.0056700mg/l0.0079000
11/1/20146.9440.0064900mg/l0.0069400
12/1/20142.7640.0062500mg/l0.0027600
1/1/20150.7530.0058100mg/l0.0007500
2/1/20153.0630.0055000mg/l0.0030600
3/1/20154.0230.0042400mg/l0.0040200
4/1/201515.6020.0055200mg/l0.0156000
5/1/20153.3520.0049200mg/l0.0033500
6/1/201526.8030.0089300mg/l0.0268000
7/1/20156.6620.0099200mg/l0.0066600
8/1/20154.7520.0102000mg/l0.0047500
9/1/20155.7720.0104900mg/l0.0057700
10/1/20151.6810.0081700mg/l0.0016800
11/1/20158.8310.0090800mg/l0.0088300
Target
mg/l
Threshold
0.011 mg/l

Nitrogen, Total

We were unable to determine a trend for the data available.
Units: mg/l Year
2015
Historical
period of record
High 2.0 14.1
Mean 1.5884 1.3284 1.27241723
Low 1.325 0.363
No. of Samples 4 266

Five-year Trend Graph

     
1/1/2011812.5020.8125000mg/l0.8120300
2/1/20111570.0021.1912500mg/l1.5662100
3/1/20111363.5021.2486700mg/l1.3624100
4/1/20111165.5021.2278800mg/l1.1634300
5/1/20111125.0021.2073000mg/l1.1244600
6/1/2011933.5021.1616700mg/l0.9289100
7/1/2011894.0021.1752500mg/l0.8332200
8/1/20111005.0021.0810800mg/l1.0030900
9/1/2011865.5020.9980800mg/l0.8654200
10/1/2011940.5020.9605800mg/l0.9376200
11/1/2011834.0020.9120800mg/l0.8337600
12/1/20111403.5020.9904200mg/l1.3999000
1/1/20121497.0021.0909200mg/l1.4550300
2/1/20121107.5021.1080000mg/l1.1075000
3/1/20121224.5021.1678300mg/l1.2229000
4/1/20121197.5021.2106700mg/l1.1966000
5/1/20121761.0011.3651700mg/l1.7610000
6/1/2012810.0011.2662500mg/l0.8100000
7/1/20124184.0011.7140800mg/l4.1840000
8/1/2012746.0011.6538300mg/l0.7460000
9/1/20121185.0011.6472500mg/l1.1850000
10/1/20121528.0011.7023300mg/l1.5280000
11/1/20121672.0011.6875000mg/l1.6720000
12/1/20121351.0011.7776700mg/l1.3510000
1/1/20131555.0011.3395000mg/l1.5550000
2/1/20131168.0011.4098300mg/l1.1680000
3/1/2013868.0011.3570000mg/l0.8680000
4/1/2013589.0011.2005000mg/l0.5890000
5/1/20132654.0011.3641700mg/l2.6540000
6/1/2013978.0011.3020000mg/l0.9780000
7/1/20131523.0011.2966700mg/l1.5230000
8/1/20131057.0011.2781700mg/l1.0570000
9/1/20131922.0011.4538300mg/l1.9220000
10/1/20131205.0011.5565000mg/l1.2050000
12/1/20132210.0011.5834000mg/l2.2100000
1/1/20141231.0021.5250000mg/l1.2310000
2/1/20141064.0021.5264000mg/l1.0640000
3/1/2014706.0021.2832000mg/l0.7060000
4/1/20141486.0011.3394000mg/l1.4860000
5/1/20141043.0011.2900000mg/l1.0430000
6/1/20142194.0011.2873300mg/l2.1940000
7/1/20141410.0011.3171700mg/l1.4100000
8/1/20141999.0011.4730000mg/l1.9990000
9/1/20141306.0011.5730000mg/l1.3060000
10/1/20141028.0021.4966700mg/l1.0280000
11/1/2014938.0021.4791700mg/l0.9380000
12/1/20141174.0021.3091700mg/l1.1740000
1/1/20151325.0011.2950000mg/l1.3250000
2/1/20151643.0011.2356700mg/l1.6430000
3/1/20152022.0011.3550000mg/l2.0220000
6/1/20151446.0011.6090000mg/l1.4460000

Phosphorus, Total

We were unable to determine a trend for the data available.
Units: mg/l Year
2015
Historical
period of record
High 0.5 3.1
Mean 0.2507 0.3094 0.46149433
Low 0.145 0.067
No. of Samples 13 350

Five-year Trend Graph

     
1/1/2011123.2050.1232000mg/l0.1210500
2/1/2011305.0050.2141000mg/l0.2829000
3/1/2011556.4050.3282000mg/l0.5476100
4/1/2011565.0050.3874000mg/l0.5606800
5/1/2011501.0050.4101200mg/l0.4764400
6/1/2011227.4050.3796700mg/l0.2206500
7/1/2011310.8050.4109300mg/l0.3069000
8/1/2011291.8050.4087300mg/l0.2884400
9/1/2011274.0050.3616700mg/l0.2737300
10/1/2011347.8050.3254700mg/l0.3021700
11/1/2011171.4050.2705300mg/l0.1555100
12/1/2011406.2050.3003300mg/l0.3962400
1/1/2012331.8050.3038300mg/l0.3315100
2/1/2012346.4050.3129300mg/l0.3393400
3/1/2012513.6050.3528700mg/l0.5008800
4/1/2012770.6050.4233300mg/l0.7560700
5/1/2012944.0030.5521000mg/l0.9440000
6/1/2012178.0030.5140700mg/l0.1780000
7/1/20122050.0030.8004300mg/l2.0500000
8/1/2012214.0030.7783700mg/l0.2140000
9/1/2012184.0030.7234300mg/l0.1840000
10/1/2012189.0030.6265000mg/l0.1890000
11/1/2012370.0030.5308300mg/l0.3700000
12/1/2012461.0030.5780000mg/l0.4610000
1/1/2013489.0030.3178300mg/l0.4890000
2/1/2013262.0030.3258300mg/l0.2620000
3/1/2013152.0030.3205000mg/l0.1520000
4/1/2013316.0030.3416700mg/l0.3160000
5/1/20131700.0030.5633300mg/l1.7000000
6/1/2013242.0030.5268300mg/l0.2420000
7/1/2013238.0030.4850000mg/l0.2380000
8/1/2013115.0030.4605000mg/l0.1150000
9/1/2013268.0030.4798300mg/l0.2680000
10/1/2013206.0030.4615000mg/l0.2060000
11/1/2013283.0020.2253300mg/l0.2830000
12/1/2013522.0030.2720000mg/l0.5220000
1/1/2014136.0040.2550000mg/l0.1360000
2/1/2014144.0040.2598300mg/l0.1440000
3/1/2014123.0040.2356700mg/l0.1230000
4/1/2014291.0030.2498300mg/l0.2910000
5/1/2014261.0030.2461700mg/l0.2610000
6/1/2014179.0040.1890000mg/l0.1790000
7/1/2014533.0040.2551700mg/l0.5330000
8/1/2014720.0040.3511700mg/l0.7200000
9/1/2014279.0040.3771700mg/l0.2790000
10/1/2014137.0040.3515000mg/l0.1370000
11/1/201491.0040.3231700mg/l0.0910000
12/1/2014126.0040.3143300mg/l0.1260000
1/1/2015203.0030.2593300mg/l0.2030000
2/1/2015145.0030.1635000mg/l0.1450000
3/1/2015520.0030.2036700mg/l0.5200000
4/1/2015322.0020.2345000mg/l0.3220000
5/1/2015472.0020.2980000mg/l0.4720000
6/1/2015256.0030.3196700mg/l0.2560000
7/1/2015173.0020.3146700mg/l0.1730000
8/1/2015211.0020.3256700mg/l0.2110000
9/1/2015181.0020.2691700mg/l0.1810000
10/1/2015269.0010.2603300mg/l0.2690000
11/1/2015228.0010.2196700mg/l0.2280000
Target
mg/l
Threshold
mg/l
Caution

Dissolved Oxygen Saturation

Note: Low DO saturation also may be naturally influenced by inflows from nearby wetlands or groundwater sources
Score: Caution
Units: percent (%) Year
2015
Historical
period of record
High 81.2 147.7
Mean 34.14 39.47 23.99729
Low 23.70 2.20
No. of Samples 8 421

Five-year Trend Graph

     
1/1/201174.54574.5400000percent (%)74.4700000
2/1/201152.16563.3500000percent (%)50.9100000
3/1/20110.36542.3500000percent (%)8.1000000
4/1/2011106.48558.3900000percent (%)106.2900000
5/1/20118.58548.4200000percent (%)7.8100000
1/1/201257.04557.0400000percent (%)47.2900000
2/1/201240.44548.7400000percent (%)39.9200000
3/1/201274.60557.3600000percent (%)64.9000000
4/1/201246.88554.7400000percent (%)45.0900000
5/1/201217.30347.2500000percent (%)17.3000000
7/1/201229.70341.7800000percent (%)29.7000000
8/1/201264.40346.5800000percent (%)64.4000000
9/1/20122.20332.1000000percent (%)2.2000000
10/1/201215.60325.8400000percent (%)15.6000000
11/1/201212.70324.9200000percent (%)12.7000000
12/1/201222.50324.5200000percent (%)22.5000000
1/1/201332.60325.0000000percent (%)32.6000000
2/1/201344.20321.6300000percent (%)44.2000000
3/1/201335.00327.1000000percent (%)35.0000000
4/1/20137.80325.8000000percent (%)7.8000000
5/1/201324.10327.7000000percent (%)24.1000000
6/1/201321.90327.6000000percent (%)21.9000000
7/1/201336.30328.2200000percent (%)36.3000000
8/1/201345.30328.4000000percent (%)45.3000000
9/1/201325.30326.7800000percent (%)25.3000000
10/1/201354.30334.5300000percent (%)54.3000000
12/1/201340.30340.3000000percent (%)40.3000000
1/1/201451.40443.3200000percent (%)51.4000000
2/1/201460.50446.3600000percent (%)60.5000000
3/1/201473.10455.9200000percent (%)73.1000000
4/1/201443.90453.8400000percent (%)43.9000000
5/1/201424.90449.0200000percent (%)24.9000000
6/1/201472.30454.3500000percent (%)72.3000000
7/1/201447.30453.6700000percent (%)47.3000000
8/1/201432.50449.0000000percent (%)32.5000000
9/1/201443.40444.0500000percent (%)43.4000000
10/1/201443.30443.9500000percent (%)43.3000000
11/1/201445.30447.3500000percent (%)45.3000000
12/1/201432.80440.7700000percent (%)32.8000000
1/1/201524.00336.8800000percent (%)24.0000000
2/1/201523.70335.4200000percent (%)23.7000000
3/1/201581.20341.7200000percent (%)81.2000000
6/1/201529.40339.5800000percent (%)29.4000000
7/1/201558.60148.2300000percent (%)58.6000000
8/1/201536.40151.4000000percent (%)36.4000000
9/1/201534.00139.6000000percent (%)34.0000000
10/1/201523.40136.3600000percent (%)23.4000000
11/1/201552.30139.0200000percent (%)52.3000000
Target
percent (%)
Threshold
56.00 percent (%)

Oysters

Units: Year
2015
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Trend Graph

     

Rainfall

Units: inches Year
2015
Historical
period of record
High 48.2 52.2
Mean 17.078760538706
Low 2.40
No. of Samples 365 4,615

Five-year Trend Graph

     
1/1/20112.33312.3300000inches2.3300000
2/1/20110.48280.4800000inches0.4800000
3/1/20119.66319.6600000inches9.6600000
4/1/20110.88300.8800000inches0.8800000
5/1/20112.95312.9500000inches2.9500000
6/1/20113.32303.3200000inches3.3200000
7/1/20116.56316.5600000inches6.5600000
8/1/20118.23318.2300000inches8.2300000
9/1/20115.03305.0300000inches5.0300000
10/1/20111.23301.2300000inches1.2300000
11/1/20111.94301.9400000inches1.9400000
12/1/20110.21300.2100000inches0.2100000
1/1/20120.69290.6900000inches0.6900000
2/1/20120.76290.7600000inches0.7600000
3/1/20121.56311.5600000inches1.5600000
4/1/20121.59241.5900000inches1.5900000
5/1/20122.77312.7700000inches2.7700000
6/1/201215.993015.9900000inches15.9900000
7/1/20126.92316.9200000inches6.9200000
8/1/20129.11319.1100000inches9.1100000
9/1/20126.08306.0800000inches6.0800000
10/1/20123.59313.5900000inches3.5900000
11/1/20120.17280.1700000inches0.1700000
12/1/20122.29312.2900000inches2.2900000
1/1/20130.37310.3700000inches0.3700000
2/1/20131.17231.1700000inches1.1700000
3/1/20131.48301.4800000inches1.4800000
4/1/20133.58303.5800000inches3.5800000
5/1/20131.97311.9700000inches1.9700000
6/1/201312.093012.0900000inches12.0900000
7/1/201311.063111.0600000inches11.0600000
8/1/20138.85318.8500000inches8.8500000
9/1/20139.93309.9300000inches9.9300000
10/1/20130.81310.8100000inches0.8100000
11/1/20130.73300.7300000inches0.7300000
12/1/20130.14310.1400000inches0.1400000
1/1/20142.82312.8200000inches2.8200000
2/1/20141.41281.4100000inches1.4100000
3/1/20145.26315.2600000inches5.2600000
4/1/20141.42291.4200000inches1.4200000
5/1/20144.93314.9300000inches4.9300000
6/1/20144.64304.6400000inches4.6400000
7/1/20141.94311.9400000inches1.9400000
8/1/20143.90283.9000000inches3.9000000
9/1/20147.35267.3500000inches7.3500000
10/1/20142.50302.5000000inches2.5000000
11/1/20143.04303.0400000inches3.0400000
12/1/20140.31310.3100000inches0.3100000
1/1/20152.54312.5400000inches2.5400000
2/1/20153.95283.9500000inches3.9500000
3/1/20151.51311.5100000inches1.5100000
4/1/20151.14301.1400000inches1.1400000
5/1/20156.13316.1300000inches6.1300000
6/1/20152.04302.0400000inches2.0400000
7/1/201514.333114.3300000inches14.3300000
8/1/20153.78313.7800000inches3.7800000
9/1/20157.98307.9800000inches7.9800000
10/1/20151.03311.0300000inches1.0300000
11/1/20151.00301.0000000inches1.0000000
12/1/20152.78312.7800000inches2.7800000
Target
inches
Threshold
inches

Salinity

Units: PSS Year
2015
Historical
period of record
High 0.6 35.3
Mean 0.27 1.11 9.36304
Low 0.10 0.00
No. of Samples 8 359

Five-year Trend Graph

     
1/1/20110.2250.2200000PSS0.2100000
2/1/20116.1853.2000000PSS3.0500000
3/1/20117.7554.7200000PSS3.2800000
4/1/201110.4856.1600000PSS3.9600000
5/1/201110.9857.1200000PSS4.2400000
1/1/201213.05513.0500000PSS4.1600000
2/1/201212.66512.8600000PSS4.0000000
3/1/20120.7158.8100000PSS0.4900000
4/1/20129.8559.0700000PSS3.2600000
5/1/20120.5737.3700000PSS0.5700000
7/1/20120.2434.8100000PSS0.2400000
8/1/20120.1232.3000000PSS0.1200000
9/1/20121.0232.3600000PSS1.0200000
10/1/20120.3530.4600000PSS0.3500000
11/1/20121.1630.5800000PSS1.1600000
12/1/20121.1930.6800000PSS1.1900000
1/1/20131.1730.8400000PSS1.1700000
2/1/20130.3330.8700000PSS0.3300000
3/1/20130.9730.8600000PSS0.9700000
4/1/20130.4130.8700000PSS0.4100000
5/1/20130.8530.8200000PSS0.8500000
6/1/20130.2030.6600000PSS0.2000000
7/1/20130.2930.5100000PSS0.2900000
8/1/20130.1830.4800000PSS0.1800000
9/1/20130.3030.3700000PSS0.3000000
10/1/20130.2730.3500000PSS0.2700000
12/1/20130.5030.3100000PSS0.5000000
1/1/20140.3340.3200000PSS0.3300000
2/1/20140.3140.3400000PSS0.3100000
3/1/20140.1840.3200000PSS0.1800000
4/1/20140.4040.3400000PSS0.4000000
5/1/20140.3840.3500000PSS0.3800000
6/1/20140.9540.4300000PSS0.9500000
7/1/20140.4340.4400000PSS0.4300000
8/1/20140.5540.4800000PSS0.5500000
9/1/20140.1440.4800000PSS0.1400000
10/1/20140.1640.4400000PSS0.1600000
11/1/20140.1740.4000000PSS0.1700000
12/1/20140.4440.3200000PSS0.4400000
1/1/20150.6230.3500000PSS0.6200000
2/1/20150.3730.3200000PSS0.3700000
3/1/20150.1030.3100000PSS0.1000000
6/1/20150.2330.3300000PSS0.2300000
7/1/20150.2110.2300000PSS0.2100000
8/1/20150.2610.2000000PSS0.2600000
9/1/20150.3110.2500000PSS0.3100000
10/1/20150.4310.2900000PSS0.4300000
11/1/20150.2510.2800000PSS0.2500000

Turbidity

Units: NTU Year
2015
Historical
period of record
High 12.0 117.0
Mean 5.57 8.1 15.35073
Low 1.20 1.20
No. of Samples 13 416

Five-year Trend Graph

     
1/1/20112.2652.2600000NTU2.2600000
2/1/201115.4858.8700000NTU12.8200000
3/1/201121.52513.0900000NTU17.3800000
4/1/201111.72512.7500000NTU11.4200000
5/1/201112.92512.7800000NTU12.8700000
6/1/20113.14511.1700000NTU2.9000000
7/1/20118.00512.1300000NTU7.6600000
8/1/20114.94510.3700000NTU4.9100000
9/1/20112.4857.2000000NTU2.4600000
10/1/20114.3055.9600000NTU3.7700000
11/1/20112.0654.1500000NTU2.0600000
12/1/201111.4255.5300000NTU11.1100000
1/1/20129.9655.8600000NTU9.6200000
2/1/201210.3656.7600000NTU10.1500000
3/1/201210.5058.1000000NTU9.7600000
4/1/201217.40510.2800000NTU12.8900000
5/1/201220.00313.2700000NTU20.0000000
6/1/20125.30312.2500000NTU5.3000000
7/1/20122.50311.0100000NTU2.5000000
8/1/20123.5039.8700000NTU3.5000000
9/1/20124.7038.9000000NTU4.7000000
10/1/20124.6036.7700000NTU4.6000000
11/1/201211.2035.3000000NTU11.2000000
12/1/201211.0036.2500000NTU11.0000000
1/1/201318.0038.8300000NTU18.0000000
2/1/20134.8039.0500000NTU4.8000000
3/1/201311.00310.1000000NTU11.0000000
4/1/201313.00311.5000000NTU13.0000000
5/1/201370.00321.3000000NTU70.0000000
6/1/20133.40320.0300000NTU3.4000000
7/1/20133.60317.6300000NTU3.6000000
8/1/20134.10317.5200000NTU4.1000000
9/1/20136.00316.6800000NTU6.0000000
10/1/20133.60315.1200000NTU3.6000000
11/1/20135.4024.3500000NTU5.4000000
12/1/201312.0035.7800000NTU12.0000000
1/1/20145.0046.0200000NTU5.0000000
2/1/20144.9046.1500000NTU4.9000000
3/1/20144.2045.8500000NTU4.2000000
4/1/20147.9036.5700000NTU7.9000000
5/1/20144.8036.4700000NTU4.8000000
6/1/201490.00419.4700000NTU90.0000000
7/1/201421.00422.1300000NTU21.0000000
8/1/201411.00423.1500000NTU11.0000000
9/1/20144.00423.1200000NTU4.0000000
10/1/20142.00422.1300000NTU2.0000000
11/1/20142.40421.7300000NTU2.4000000
12/1/20142.3047.1200000NTU2.3000000
1/1/201512.0035.6200000NTU12.0000000
2/1/20158.7035.2300000NTU8.7000000
3/1/201511.0036.4000000NTU11.0000000
4/1/20158.7027.5200000NTU8.7000000
5/1/20157.0028.2800000NTU7.0000000
6/1/20152.9038.3800000NTU2.9000000
7/1/20151.8026.6800000NTU1.8000000
8/1/20153.4025.8000000NTU3.4000000
9/1/20151.2024.1700000NTU1.2000000
10/1/20153.6013.3200000NTU3.6000000
11/1/20151.9012.4700000NTU1.9000000
Other Measures of Creek Health

Oysters

Because they are immobile and will tolerate a fairly wide salinity range, eastern oysters (Crassotrea virginica) are valuable as an indicator of the relative health of aquatic ecosystems in the tidally-influenced portions of coastal creeks. Sarasota County has established an oyster monitoring program to track the location, types, and status of oyster reefs. Data from this monitoring program is shown below. Learn more about Oysters »

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Impervious Features

Clower Creek is located within the Little Sarasota Bay Watershed. View details about the Little Sarasota Bay Watershed »

Rain that falls on land that is in a natural state is absorbed and filtered by soils and vegetation as it makes it way into underground aquifers. However, in developed areas, "impervious surfaces" impede this process and contribute to polluted urban runoff entering surface waters. These surfaces include human infrastructure like roads, sidewalks, driveways and parking lots that are covered by impenetrable materials such as asphalt, concrete, brick and stone, as well as buildings and other permanent structures. Soils that have been disturbed and compacted by urban development are often impervious as well. Learn more about Impervious Features »

The Sarasota County Stormwater Environmental Utility (SEU) mapped impervious surfaces in the County in 2013. A map showing impervious surfaces can be viewed using the Water Atlas Map Viewer tool.

of the land area within the Clower Creek Basin is covered by impervious surfaces.

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Land Use / Land Cover

Clower Creek is located within the Little Sarasota Bay Watershed. View details about the Little Sarasota Bay Watershed »

Land use within a creek's watershed has a major effect on its water quality. In general, less development means better water quality. Land Cover/Land Use classifications categorize land in terms of its observed physical surface characteristics (e.g. upland or wetland), and also reflect the types of activity that are taking place on it (agriculture, urban/built-up, utilities, etc.). Florida uses as its standard a set of statewide classifications which were developed by the Florida Department of Transportation. Learn more about Land Use and Land Cover »

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Data Sources

The data sources listed below provided water quality data used to create the report on this page. Not all data sources provided data for every creek, and not every Creek Conditions Report used data from all listed data sources. While some data sources have no data for the scored year, they provided period-of-record (historical high, mean, low) data. Click on a data source name to review its metadata.