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Whitaker Bayou Condition Report for 2014

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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: 4,967 acres
  • Location: North Sarasota County, south Manatee County
  • Discharges into: Sarasota Bay

Whitaker Bayou is a highly urbanized basin that has changed in land use and hydrology since the mid-1900s. The Sarasota County 1847 General Land Office Survey indicates that Whitaker Bayou only extended about a quarter of a mile inland from the bay. The survey also displays a separate waterway that extends inland from 0.25 mile northeast of the head of Whitaker Bayou. Seasonal patterns in freshwater inflows have not changed significantly between historic and current conditions, indicating that changes in land use have not altered the intra-annual pattern of inflows to the bay. Land use has, however, affected the magnitude of total inflow to the bay, if not the relative contributions of individual sources (runoff, baseflow, irrigation, point sources). For full basin details see: 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 »

Data for the following WBIDs is averaged when compiling the data below:
  • 1936A
Pass

Chlorophyll a

Score: Pass
Units: mg/l Year
2014
Historical
period of record
High 0.0048 0.0595
Mean 0.0018 0.0019 0.00538724
Low 0.0003 0.00
No. of Samples 46 531

Five-year Trend Graph

      
1/1/20101.5390.0015300mg/l0.0014500
2/1/20105.3890.0034600mg/l0.0030400
3/1/20104.5690.0038200mg/l0.0031900
4/1/20101.7790.0033100mg/l0.0017400
6/1/20104.2990.0035100mg/l0.0030100
7/1/20101.9490.0035900mg/l0.0019000
8/1/20107.6860.0040500mg/l0.0067400
9/1/20102.29180.0035900mg/l0.0017400
10/1/20103.2090.0038800mg/l0.0020700
11/1/20101.9390.0035600mg/l0.0013800
12/1/20100.7690.0029700mg/l0.0006600
1/1/20115.4490.0035500mg/l0.0053800
2/1/20111.2490.0024800mg/l0.0010500
3/1/20110.8890.0022400mg/l0.0007800
4/1/20111.8490.0020200mg/l0.0017200
5/1/20115.8190.0026600mg/l0.0044700
6/1/20116.2290.0035700mg/l0.0057100
7/1/20113.2390.0032000mg/l0.0026300
8/1/20118.9590.0044900mg/l0.0069800
9/1/20111.3090.0045600mg/l0.0012600
10/1/20111.9790.0045800mg/l0.0019600
11/1/20111.1490.0038000mg/l0.0010700
12/1/201121.3190.0063200mg/l0.0053100
1/1/20127.1090.0069600mg/l0.0055000
2/1/20124.8490.0062800mg/l0.0021600
3/1/20122.5290.0064800mg/l0.0019900
4/1/20122.1590.0065100mg/l0.0019400
5/1/20120.6430.0064300mg/l0.0006400
6/1/20129.6130.0044800mg/l0.0096100
7/1/20123.2030.0038300mg/l0.0032000
8/1/20123.1630.0035500mg/l0.0031600
9/1/20121.0430.0033000mg/l0.0010400
10/1/20121.6830.0032200mg/l0.0016800
11/1/20120.4130.0031800mg/l0.0004100
12/1/20120.2630.0016300mg/l0.0002600
1/1/20130.7430.0012200mg/l0.0007400
2/1/20130.5930.0007900mg/l0.0005900
3/1/20131.02110.0007800mg/l0.0007600
4/1/20130.9930.0006700mg/l0.0009900
5/1/20132.65120.0010400mg/l0.0016200
6/1/20133.0830.0015100mg/l0.0030800
7/1/20133.1390.0019100mg/l0.0030600
8/1/20134.1150.0025000mg/l0.0040900
9/1/20134.65110.0031000mg/l0.0037700
10/1/20131.0750.0031200mg/l0.0010700
11/1/20131.53120.0029300mg/l0.0014300
12/1/20130.5430.0025100mg/l0.0005400
1/1/20140.3230.0020400mg/l0.0003200
2/1/20141.3440.0015800mg/l0.0013400
3/1/20144.3840.0015300mg/l0.0043800
4/1/20143.1640.0018800mg/l0.0031600
5/1/20141.5040.0018700mg/l0.0015000
6/1/20141.1440.0019700mg/l0.0011400
7/1/20143.7940.0025500mg/l0.0037900
8/1/20142.4440.0027400mg/l0.0024400
9/1/20140.3430.0020600mg/l0.0003400
10/1/20144.8040.0023400mg/l0.0048000
11/1/20143.8540.0027300mg/l0.0038500
12/1/20141.1340.0027300mg/l0.0011300
Target
mg/l
Threshold
0.02 mg/l
Pass

Nitrogen, Total

Score: Pass
Units: mg/l Year
2014
Historical
period of record
High 1.476 15.76
Mean 0.8442 0.8979 1.60314228
Low 0.615 0.30
No. of Samples 20 318

Five-year Trend Graph

      
1/1/20101272.6731.2726700mg/l1.2415500
2/1/2010820.6731.0466700mg/l0.8199000
3/1/20101110.3331.0678900mg/l1.1015300
4/1/2010924.0031.0319200mg/l0.8682900
6/1/20101998.0031.2251300mg/l1.9020400
7/1/2010934.6731.1575300mg/l0.9332000
9/1/20101291.8361.2871300mg/l1.2231800
10/1/2010864.6731.2722900mg/l0.8537900
11/1/2010740.3331.1659000mg/l0.7230800
12/1/2010719.0030.9101000mg/l0.6983300
1/1/20111050.3330.9332300mg/l1.0330600
2/1/2011763.0030.9048600mg/l0.7563100
3/1/2011834.0030.8285600mg/l0.8273400
4/1/2011788.6730.8158900mg/l0.7825800
5/1/2011950.0030.8508300mg/l0.9391700
6/1/20111114.6730.9167800mg/l1.0953100
7/1/20111210.0030.9433900mg/l1.0703100
8/1/20111346.0031.0405600mg/l1.3073100
9/1/2011884.0031.0488900mg/l0.8587800
10/1/2011676.0031.0301100mg/l0.6570200
11/1/2011766.3330.9995000mg/l0.7152300
12/1/2011858.3330.9567800mg/l0.8334400
1/1/2012837.0030.8946100mg/l0.8219100
2/1/2012899.0030.8201100mg/l0.8777600
3/1/2012735.6730.7953900mg/l0.7292000
4/1/2012701.6730.7996700mg/l0.6908700
5/1/2012656.0010.7812800mg/l0.6560000
6/1/20121441.0010.8783900mg/l1.4410000
7/1/20121070.0010.9172200mg/l1.0700000
8/1/20121102.0010.9510600mg/l1.1020000
9/1/2012855.0010.9709500mg/l0.8550000
10/1/20121062.0011.0310000mg/l1.0620000
11/1/2012910.0011.0733300mg/l0.9100000
12/1/2012868.0010.9778300mg/l0.8680000
1/1/2013593.0010.8983300mg/l0.5930000
2/1/2013632.0010.8200000mg/l0.6320000
3/1/2013713.4050.7964000mg/l0.7071800
4/1/2013553.0010.7115700mg/l0.5530000
5/1/2013727.8050.6812000mg/l0.7258300
6/1/2013962.0010.6968700mg/l0.9620000
7/1/20131441.2540.8382400mg/l1.4382200
8/1/20131385.0010.9637400mg/l1.3850000
9/1/20131700.8051.1283100mg/l1.6747500
10/1/20131009.0011.2043100mg/l1.0090000
11/1/20131061.0041.2598400mg/l1.0568000
12/1/2013720.0011.2195100mg/l0.7200000
1/1/2014667.0021.0904700mg/l0.6670000
2/1/2014683.0020.9734700mg/l0.6830000
3/1/2014909.0020.8415000mg/l0.9090000
4/1/2014742.0020.7970000mg/l0.7420000
5/1/2014615.0020.7226700mg/l0.6150000
6/1/2014820.0010.7393300mg/l0.8200000
7/1/2014782.0010.7585000mg/l0.7820000
8/1/2014664.0010.7553300mg/l0.6640000
9/1/20141093.0010.7860000mg/l1.0930000
10/1/20141476.0020.9083300mg/l1.4760000
11/1/20141141.0020.9960000mg/l1.1410000
12/1/2014847.0021.0005000mg/l0.8470000
Pass

Phosphorus, Total

Score: Pass
Units: mg/l Year
2014
Historical
period of record
High 0.777 2.38
Mean 0.2791 0.3097 0.23421759
Low 0.136 0.082
No. of Samples 48 549

Five-year Trend Graph

      
1/1/2010187.0090.1870000mg/l0.1847100
2/1/2010227.0090.2070000mg/l0.2146900
3/1/2010242.0090.2186700mg/l0.2329100
4/1/2010258.0090.2285000mg/l0.2515100
6/1/20101316.6790.4461300mg/l1.1117900
7/1/2010397.0090.4881300mg/l0.3857800
8/1/2010574.0060.5575300mg/l0.5521300
9/1/2010367.33180.5826000mg/l0.3625700
10/1/2010264.0090.5838000mg/l0.2560900
11/1/2010239.6790.5264500mg/l0.2292600
12/1/2010165.6790.3346100mg/l0.1616400
1/1/2011515.3390.3543300mg/l0.4822300
2/1/2011227.3390.2965600mg/l0.2234000
3/1/2011297.3390.2848900mg/l0.2952700
4/1/2011324.6790.2950000mg/l0.2995000
5/1/2011607.6790.3563300mg/l0.5862300
6/1/2011602.3390.4291100mg/l0.5966000
7/1/2011335.0090.3990600mg/l0.3332000
8/1/2011455.3390.4370600mg/l0.4496300
9/1/2011240.6790.4276100mg/l0.2369500
10/1/2011242.3390.4138900mg/l0.2358300
11/1/2011249.0090.3541100mg/l0.2467900
12/1/2011445.0090.3278900mg/l0.3453500
1/1/2012351.0090.3305600mg/l0.2833100
2/1/2012313.6790.3069500mg/l0.2978100
3/1/2012345.6790.3244500mg/l0.3303100
4/1/2012469.6790.3623400mg/l0.4431100
5/1/2012948.0030.4788400mg/l0.9480000
6/1/2012317.0030.4575000mg/l0.3170000
7/1/2012390.0030.4640000mg/l0.3900000
8/1/2012370.0030.4733900mg/l0.3700000
9/1/2012253.0030.4579500mg/l0.2530000
10/1/2012255.0030.4221700mg/l0.2550000
11/1/2012158.0030.2905000mg/l0.1580000
12/1/2012205.0030.2718300mg/l0.2050000
1/1/2013205.0030.2410000mg/l0.2050000
2/1/2013307.0030.2305000mg/l0.3070000
3/1/2013351.1470.2468600mg/l0.3432300
4/1/2013356.0030.2636900mg/l0.3560000
5/1/2013382.0070.3010200mg/l0.3599900
6/1/2013361.0030.3270200mg/l0.3610000
7/1/2013334.8360.3486600mg/l0.3086400
8/1/2013406.0030.3651600mg/l0.4060000
9/1/2013440.7170.3800900mg/l0.4165800
10/1/2013245.0030.3615900mg/l0.2450000
11/1/2013222.6760.3350400mg/l0.2164100
12/1/2013166.0030.3025400mg/l0.1660000
1/1/2014136.0040.2694000mg/l0.1360000
2/1/2014248.0040.2430600mg/l0.2480000
3/1/2014285.0040.2171100mg/l0.2850000
4/1/2014260.0040.2196100mg/l0.2600000
5/1/2014227.0040.2203300mg/l0.2270000
6/1/2014350.0040.2510000mg/l0.3500000
7/1/2014748.0040.3530000mg/l0.7480000
8/1/2014777.0040.4411700mg/l0.7770000
9/1/2014466.0040.4713300mg/l0.4660000
10/1/2014195.0040.4605000mg/l0.1950000
11/1/2014149.0040.4475000mg/l0.1490000
12/1/2014143.0040.4130000mg/l0.1430000
Target
mg/l
Threshold
0.49 mg/l
Pass

Dissolved Oxygen Saturation

Note: Low DO saturation also may be naturally influenced by inflows from nearby wetlands or groundwater sources.
Score: Pass
Units: percent (%) Year
2014
Historical
period of record
High 174.40 262.30
Mean 107.84 85.83 42.76379
Low 63.70 7.0588
No. of Samples 48 666

Five-year Trend Graph

      
1/1/2010116.209116.2000000percent (%)114.6100000
2/1/2010128.106122.1500000percent (%)128.0700000
3/1/2010113.979119.4200000percent (%)113.7700000
4/1/2010163.806130.5200000percent (%)158.9400000
7/1/201081.3116121.8000000percent (%)81.2400000
9/1/2010134.8224126.6400000percent (%)133.0100000
10/1/201083.112499.7500000percent (%)82.1900000
11/1/2010146.7024111.4900000percent (%)146.5300000
12/1/2010108.9624110.9800000percent (%)107.8300000
1/1/201181.8216111.0800000percent (%)81.7500000
2/1/2011137.4424115.4800000percent (%)133.7700000
3/1/2011119.6124112.9400000percent (%)109.4900000
4/1/2011159.0924125.6000000percent (%)155.2600000
5/1/201194.2624116.8600000percent (%)92.9700000
1/1/201274.13974.1300000percent (%)64.3300000
2/1/201298.47986.3000000percent (%)91.7600000
3/1/2012154.279108.9600000percent (%)106.2000000
4/1/2012130.979114.4600000percent (%)126.9800000
5/1/2012106.903112.9500000percent (%)106.9000000
7/1/201275.503113.2200000percent (%)75.5000000
8/1/201262.303105.9900000percent (%)62.3000000
9/1/201268.10388.7500000percent (%)68.1000000
10/1/201290.50380.6600000percent (%)90.5000000
11/1/201296.20378.5200000percent (%)96.2000000
12/1/2012103.30382.6500000percent (%)103.3000000
1/1/2013106.80387.8700000percent (%)106.8000000
2/1/201376.80390.2800000percent (%)76.8000000
3/1/2013104.24896.3100000percent (%)88.0700000
4/1/201377.50394.1400000percent (%)77.5000000
5/1/201366.26889.1500000percent (%)56.0200000
6/1/201348.70380.0500000percent (%)48.7000000
7/1/201359.65672.1900000percent (%)58.3200000
8/1/201383.20473.2600000percent (%)83.2000000
9/1/201379.50769.1400000percent (%)77.9700000
10/1/201395.40472.1200000percent (%)95.4000000
11/1/2013101.74578.0300000percent (%)99.2100000
12/1/2013105.00387.4200000percent (%)105.0000000
1/1/2014103.10494.6600000percent (%)103.1000000
2/1/2014154.704106.5700000percent (%)154.7000000
3/1/201492.504108.7400000percent (%)92.5000000
4/1/201493.204108.3700000percent (%)93.2000000
5/1/2014118.404111.1500000percent (%)118.4000000
6/1/201499.404110.2200000percent (%)99.4000000
7/1/2014174.404122.1000000percent (%)174.4000000
8/1/2014158.804122.7800000percent (%)158.8000000
9/1/201470.804119.1700000percent (%)70.8000000
10/1/201463.704114.2500000percent (%)63.7000000
11/1/201478.004107.5200000percent (%)78.0000000
12/1/2014156.904117.1000000percent (%)156.9000000
Target
percent (%)
Threshold
38.00 percent (%)

BOD, Biochemical oxygen demand

Units: mg/l Year
2014
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Trend Graph

      
1/1/20100.7790.7700000mg/l0.7600000
2/1/20100.9790.8700000mg/l0.9400000
3/1/20101.1190.9500000mg/l1.0600000
4/1/20100.6490.8700000mg/l0.6300000
6/1/20101.3990.9800000mg/l1.2400000
7/1/20101.0491.0300000mg/l1.0100000
8/1/20101.6161.1600000mg/l1.5900000
9/1/20100.82181.1000000mg/l0.7700000
10/1/20100.7891.1300000mg/l0.7500000
11/1/20100.7491.0600000mg/l0.7300000
12/1/20100.5690.9300000mg/l0.5600000
1/1/20112.4091.1500000mg/l2.3900000
2/1/20110.8991.0300000mg/l0.8900000
3/1/20111.1491.0900000mg/l1.1400000
4/1/20111.1291.1400000mg/l1.1100000
5/1/20110.9791.1800000mg/l0.9400000
6/1/20111.5491.3400000mg/l1.4900000
7/1/20110.6891.0600000mg/l0.6600000
8/1/20111.0491.0800000mg/l1.0000000
9/1/20110.5490.9800000mg/l0.5400000
10/1/20110.7990.9300000mg/l0.7700000
11/1/20111.2990.9800000mg/l1.0600000
12/1/20110.7490.8500000mg/l0.7100000
1/1/20121.0830.9100000mg/l1.0700000
2/1/20121.0290.9100000mg/l1.0100000
3/1/20120.8490.9600000mg/l0.8300000
4/1/20120.6090.9300000mg/l0.6000000
5/1/20120.7830.8400000mg/l0.7800000
6/1/20122.0031.0500000mg/l2.0000000
7/1/20120.8431.0100000mg/l0.8400000
8/1/20120.7630.9700000mg/l0.7600000
9/1/20120.5030.9100000mg/l0.5000000
10/1/20120.5030.9000000mg/l0.5000000
11/1/20120.5030.8500000mg/l0.5000000
12/1/20120.5030.6000000mg/l0.5000000
1/1/20130.5130.5500000mg/l0.5100000
2/1/20130.5430.5100000mg/l0.5400000
3/1/20130.9670.5900000mg/l0.8600000
4/1/20130.5730.6000000mg/l0.5600000
5/1/20130.8670.6600000mg/l0.7700000
6/1/20130.6830.6900000mg/l0.6800000
7/1/20131.0060.7700000mg/l0.8600000
8/1/20130.6030.7800000mg/l0.6000000
9/1/20131.5370.8700000mg/l1.3200000
10/1/20130.5030.8600000mg/l0.5000000
11/1/20130.8360.8600000mg/l0.7700000
12/1/20130.5030.8300000mg/l0.5000000
1/1/20140.5040.7400000mg/l0.5000000
2/1/20140.6030.7400000mg/l0.6000000
3/1/20141.1940.6900000mg/l1.1900000
4/1/20140.5040.6900000mg/l0.5000000
5/1/20140.9040.7000000mg/l0.9000000
6/1/20140.5040.7000000mg/l0.5000000
7/1/20140.5930.7100000mg/l0.5900000
8/1/20140.6330.7200000mg/l0.6300000
9/1/20140.5040.6000000mg/l0.5000000
10/1/20141.1640.7100000mg/l1.1600000
11/1/20140.6430.6700000mg/l0.6400000
12/1/20140.5040.6700000mg/l0.5000000

Color

Units: PCU Year
2014
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Trend Graph

      

Escherichia coli

Units: cfu/100ml Year
2014
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Trend Graph

      
Target
cfu/100ml
Threshold
cfu/100ml

Nitrogen, Ammonia + Ammonium as N

Units: ug/l Year
2014
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Trend Graph

      
1/1/2010225.679225.6700000ug/l179.3400000
2/1/201057.009141.3400000ug/l56.4100000
3/1/2010103.009128.5600000ug/l98.5800000
4/1/2010104.009122.4200000ug/l89.0500000
6/1/2010536.679205.2700000ug/l331.5100000
7/1/2010306.339221.4000000ug/l296.6600000
8/1/2010263.006262.6000000ug/l248.9900000
9/1/201078.6718257.7300000ug/l70.9400000
10/1/201070.339251.0000000ug/l69.5300000
11/1/201032.339214.5600000ug/l32.0900000
12/1/201016.009127.7800000ug/l15.9200000
1/1/201146.67984.5000000ug/l45.6400000
2/1/201120.33944.0600000ug/l20.1900000
3/1/201137.33937.1700000ug/l37.2400000
4/1/201145.00932.9400000ug/l44.9900000
5/1/201163.00938.0600000ug/l61.7900000
6/1/2011272.67980.8300000ug/l252.4000000
7/1/201131.33978.2800000ug/l17.0900000
8/1/2011105.67992.5000000ug/l63.6700000
9/1/201119.33989.5000000ug/l17.0200000
10/1/201116.33984.7200000ug/l13.5400000
11/1/201175.33986.7800000ug/l28.3800000
12/1/201148.33949.3900000ug/l37.3200000
1/1/201251.00952.6700000ug/l32.8800000
2/1/201282.33948.7800000ug/l34.1300000
3/1/201225.00949.7200000ug/l23.9400000
4/1/201241.78953.9600000ug/l29.9600000
5/1/20128.00342.7400000ug/l8.0000000
6/1/2012157.00360.8500000ug/l157.0000000
7/1/201216.00355.0200000ug/l16.0000000
8/1/20128.00342.6300000ug/l8.0000000
9/1/201215.00340.9600000ug/l15.0000000
10/1/20128.00335.3300000ug/l8.0000000
11/1/201245.00341.5000000ug/l45.0000000
12/1/201232.00320.6700000ug/l32.0000000
1/1/20138.00319.3300000ug/l8.0000000
2/1/20138.00319.3300000ug/l8.0000000
3/1/201335.75822.7900000ug/l16.8700000
4/1/20138.00322.7900000ug/l8.0000000
5/1/201328.88820.1100000ug/l16.4500000
6/1/20138.00316.1100000ug/l8.0000000
7/1/201344.33622.1600000ug/l25.0900000
8/1/201330.75425.9500000ug/l21.7100000
9/1/2013174.14749.0200000ug/l101.6300000
10/1/201310.75449.4800000ug/l9.9300000
11/1/201361.43754.9000000ug/l27.5400000
12/1/20138.00354.9000000ug/l8.0000000
1/1/20146.40548.5800000ug/l2.0100000
2/1/20146.40544.5200000ug/l2.0100000
3/1/201416.00518.1600000ug/l5.0200000
4/1/20149.00417.8700000ug/l2.1300000
5/1/20146.0048.6300000ug/l1.4200000
6/1/201420.81510.7700000ug/l6.5300000
7/1/20146.40510.7700000ug/l2.0100000
8/1/20146.40510.7700000ug/l2.0100000
9/1/20146.4059.1700000ug/l2.0100000
10/1/201419.20510.8700000ug/l6.0300000
11/1/201412.00511.8700000ug/l3.7700000
12/1/20146.4059.4700000ug/l2.0100000

Nitrogen, Kjeldahl

Units: ug/l Year
2014
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Trend Graph

      
1/1/2010846.679846.6700000ug/l818.6700000
2/1/2010738.679792.6700000ug/l736.8300000
3/1/2010911.339832.2200000ug/l908.0300000
4/1/2010766.009815.6700000ug/l751.0400000
6/1/20101756.6791003.8700000ug/l1632.1200000
7/1/2010675.679969.6700000ug/l675.3800000
8/1/20101383.3361098.6000000ug/l1368.4900000
9/1/2010920.33181100.4000000ug/l867.5200000
10/1/2010768.0091100.8000000ug/l765.4600000
11/1/2010648.6791025.4500000ug/l643.7000000
12/1/2010581.009829.5000000ug/l578.1800000
1/1/2011862.009860.5600000ug/l852.3300000
2/1/2011716.679749.4500000ug/l713.2500000
3/1/2011811.339731.2800000ug/l804.8300000
4/1/2011711.679721.8900000ug/l704.1600000
5/1/2011811.679749.0600000ug/l800.5300000
6/1/2011985.679816.5000000ug/l962.5800000
7/1/2011790.339804.5600000ug/l766.3100000
8/1/20111011.339853.6700000ug/l977.6400000
9/1/2011736.009841.1100000ug/l729.3400000
10/1/2011561.679816.1100000ug/l554.9400000
11/1/2011686.339795.2200000ug/l654.4000000
12/1/2011725.009751.7800000ug/l719.0300000
1/1/2012748.679744.8300000ug/l741.3300000
2/1/2012841.679716.5600000ug/l823.6600000
3/1/2012713.009712.7200000ug/l706.9900000
4/1/2012674.009731.4500000ug/l665.3500000
5/1/2012606.003718.0600000ug/l606.0000000
6/1/20121140.003787.2200000ug/l1140.0000000
7/1/2012858.003805.4500000ug/l858.0000000
8/1/2012863.003809.0000000ug/l863.0000000
9/1/2012635.003796.0000000ug/l635.0000000
10/1/2012644.003791.0000000ug/l644.0000000
11/1/2012614.003792.3300000ug/l614.0000000
12/1/2012623.003706.1700000ug/l623.0000000
1/1/2013541.003653.3300000ug/l541.0000000
2/1/2013609.003611.0000000ug/l609.0000000
3/1/2013631.297610.3800000ug/l623.1700000
4/1/2013516.003589.0500000ug/l516.0000000
5/1/2013675.717599.3300000ug/l674.9900000
6/1/2013836.003634.8300000ug/l836.0000000
7/1/20131053.336720.2200000ug/l1052.7200000
8/1/20131160.003812.0600000ug/l1160.0000000
9/1/20131265.717917.7900000ug/l1229.5800000
10/1/2013723.003952.2900000ug/l723.0000000
11/1/2013817.006975.8400000ug/l801.1700000
12/1/2013651.003945.0100000ug/l651.0000000
1/1/2014634.004875.1200000ug/l634.0000000
2/1/2014633.004787.2900000ug/l633.0000000
3/1/2014763.004703.5000000ug/l763.0000000
4/1/2014694.004698.6700000ug/l694.0000000
5/1/2014587.004660.3300000ug/l587.0000000
6/1/2014727.004673.0000000ug/l727.0000000
7/1/2014769.004695.5000000ug/l769.0000000
8/1/2014644.004697.3300000ug/l644.0000000
9/1/2014799.004703.3300000ug/l799.0000000
10/1/20141270.004799.3300000ug/l1270.0000000
11/1/2014697.004817.6700000ug/l697.0000000
12/1/2014600.004796.5000000ug/l600.0000000

Nitrogen, Nitrite + Nitrate as N

Units: ug/l Year
2014
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Trend Graph

      
1/1/2010426.009426.0000000ug/l418.8900000
2/1/201082.009254.0000000ug/l69.7600000
3/1/2010199.009235.6700000ug/l181.1100000
4/1/2010158.009216.2500000ug/l55.7700000
6/1/2010241.339221.2700000ug/l214.4400000
7/1/2010259.009187.8700000ug/l256.2500000
8/1/2010248.676221.2000000ug/l246.9100000
9/1/2010371.5018255.7000000ug/l342.1800000
10/1/201096.679243.4300000ug/l64.2000000
11/1/201091.679218.1400000ug/l54.2800000
12/1/2010138.009200.9200000ug/l59.6800000
1/1/2011188.339189.1400000ug/l176.0400000
2/1/201146.339155.4200000ug/l33.0400000
3/1/201122.67997.2800000ug/l15.8700000
4/1/201177.00994.0000000ug/l76.7400000
5/1/2011138.339101.7800000ug/l135.4700000
6/1/2011129.009100.2800000ug/l127.2500000
7/1/2011419.679138.8300000ug/l235.9200000
8/1/2011334.679186.8900000ug/l329.0200000
9/1/2011148.009207.7800000ug/l105.2200000
10/1/2011114.339214.0000000ug/l77.6500000
11/1/201180.009204.2800000ug/l46.9300000
12/1/2011133.339205.0000000ug/l58.4400000
1/1/201288.339149.7800000ug/l58.4000000
2/1/201257.339103.5500000ug/l48.1600000
3/1/201222.67982.6700000ug/l15.9800000
4/1/201227.67968.2200000ug/l23.2700000
5/1/201250.00363.2200000ug/l50.0000000
6/1/2012301.00391.1700000ug/l301.0000000
7/1/2012212.003111.7800000ug/l212.0000000
8/1/2012239.003142.0600000ug/l239.0000000
9/1/2012220.003174.9500000ug/l220.0000000
10/1/2012418.003240.0000000ug/l418.0000000
11/1/2012296.003281.0000000ug/l296.0000000
12/1/2012245.003271.6700000ug/l245.0000000
1/1/201352.003245.0000000ug/l52.0000000
2/1/201323.003209.0000000ug/l23.0000000
3/1/201338.388178.7300000ug/l30.3700000
4/1/201337.003115.2300000ug/l37.0000000
5/1/201347.50873.8100000ug/l39.0400000
6/1/2013126.00353.9800000ug/l126.0000000
7/1/2013432.506117.4000000ug/l419.3600000
8/1/2013211.254148.7700000ug/l209.7700000
9/1/2013356.007201.7100000ug/l350.4700000
10/1/2013279.504242.1300000ug/l279.2700000
11/1/2013182.336264.6000000ug/l167.1800000
12/1/201369.003255.1000000ug/l69.0000000
1/1/201433.004188.5100000ug/l33.0000000
2/1/201450.004161.6400000ug/l50.0000000
3/1/2014146.004126.6400000ug/l146.0000000
4/1/201448.00488.0600000ug/l48.0000000
5/1/201428.00462.3300000ug/l28.0000000
6/1/201493.00466.3300000ug/l93.0000000
7/1/201413.00363.0000000ug/l13.0000000
8/1/201420.00458.0000000ug/l20.0000000
9/1/2014294.00482.6700000ug/l294.0000000
10/1/2014206.004109.0000000ug/l206.0000000
11/1/2014444.004178.3300000ug/l444.0000000
12/1/2014247.004204.0000000ug/l247.0000000

pH

Units: None Year
2014
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Trend Graph

      
1/1/20107.7297.7200000None7.7200000
2/1/20108.1367.9300000None8.1200000
3/1/20107.7597.8700000None7.7500000
4/1/20108.1167.9300000None8.1000000
7/1/20107.9167.9800000None7.9100000
9/1/20108.0798.0300000None8.0700000
10/1/20107.8497.9400000None7.8400000
11/1/20108.0297.9600000None8.0100000
12/1/20107.9997.9700000None7.9900000
1/1/20117.8967.9600000None7.8900000
2/1/20118.0097.9700000None7.9900000
3/1/20118.1697.9800000None8.1500000
4/1/20118.0398.0200000None8.0300000
5/1/20118.1998.0400000None8.1900000
1/1/20127.8697.8600000None7.8600000
2/1/20127.9897.9200000None7.9800000
3/1/20127.8797.9000000None7.8700000
4/1/20128.1197.9600000None8.1100000
5/1/20127.8937.9400000None7.8900000
7/1/20127.4637.8600000None7.4600000
8/1/20127.2537.7200000None7.2500000
9/1/20127.3937.6200000None7.3900000
10/1/20127.6837.5300000None7.6800000
11/1/20127.7937.5100000None7.7900000
12/1/20127.8437.5700000None7.8400000
1/1/20137.8737.6400000None7.8700000
2/1/20137.6837.7100000None7.6800000
3/1/20137.7087.7600000None7.7000000
4/1/20137.8337.7900000None7.8300000
5/1/20137.5287.7400000None7.5200000
6/1/20137.1037.6200000None7.1000000
7/1/20137.4967.5500000None7.4900000
8/1/20137.4647.5200000None7.4600000
9/1/20137.2877.4500000None7.2800000
10/1/20137.5147.3900000None7.5100000
11/1/20137.5857.4000000None7.5700000
12/1/20137.7937.5200000None7.7900000
1/1/20147.6937.5500000None7.6900000
2/1/20147.8137.6100000None7.8100000
3/1/20147.3237.6200000None7.3200000
4/1/20147.4937.6100000None7.4900000
5/1/20147.9237.6700000None7.9200000
6/1/20147.9137.6900000None7.9100000
7/1/20148.0737.7500000None8.0700000
8/1/20148.3737.8500000None8.3700000
9/1/20147.8637.9400000None7.8600000
10/1/20147.4137.9200000None7.4100000
11/1/20147.5737.8700000None7.5700000
12/1/20148.1057.9000000None8.1000000

Rainfall

Units: inches Year
2014
Historical
period of record
High 41.62 56.99
Mean 14.0782772975484
Low 8.52
No. of Samples 356 5,448

Five-year Trend Graph

      
1/1/20103.95313.9500000inches3.9500000
2/1/20102.11282.1100000inches2.1100000
3/1/20105.09315.0900000inches5.0900000
4/1/20101.38301.3800000inches1.3800000
5/1/20100.87310.8700000inches0.8700000
6/1/20106.31306.3100000inches6.3100000
7/1/20105.45315.4500000inches5.4500000
8/1/201012.113112.1100000inches12.1100000
9/1/20102.24302.2400000inches2.2400000
10/1/20100.01310.0100000inches0.0100000
11/1/20102.77302.7700000inches2.7700000
12/1/20100.86310.8600000inches0.8600000
1/1/20112.83312.8300000inches2.8300000
2/1/20110.73280.7300000inches0.7300000
3/1/20115.81315.8100000inches5.8100000
4/1/20111.49301.4900000inches1.4900000
5/1/20112.21312.2100000inches2.2100000
6/1/20113.24303.2400000inches3.2400000
7/1/20118.71318.7100000inches8.7100000
8/1/20117.69317.6900000inches7.6900000
9/1/20114.01304.0100000inches4.0100000
10/1/20111.88301.8800000inches1.8800000
11/1/20111.10301.1000000inches1.1000000
12/1/20110.17300.1700000inches0.1700000
1/1/20120.67290.6700000inches0.6700000
2/1/20121.05291.0500000inches1.0500000
3/1/20121.67311.6700000inches1.6700000
4/1/20122.57242.5700000inches2.5700000
5/1/20121.86311.8600000inches1.8600000
6/1/201215.043015.0400000inches15.0400000
7/1/20124.59314.5900000inches4.5900000
8/1/20128.33318.3300000inches8.3300000
9/1/20122.20302.2000000inches2.2000000
10/1/20122.49312.4900000inches2.4900000
11/1/20120.00280.0000000inches0.0000000
12/1/20121.59311.5900000inches1.5900000
1/1/20130.17310.1700000inches0.1700000
2/1/20131.06231.0600000inches1.0600000
3/1/20130.81300.8100000inches0.8100000
4/1/20133.43303.4300000inches3.4300000
5/1/20132.93312.9300000inches2.9300000
6/1/20138.86318.8600000inches8.8600000
7/1/201311.003111.0000000inches11.0000000
8/1/201310.603110.6000000inches10.6000000
9/1/201315.013015.0100000inches15.0100000
10/1/20130.96310.9600000inches0.9600000
11/1/20130.91300.9100000inches0.9100000
12/1/20130.20310.2000000inches0.2000000
1/1/20142.55312.5500000inches2.5500000
2/1/20142.36282.3600000inches2.3600000
3/1/20145.96315.9600000inches5.9600000
4/1/20140.97290.9700000inches0.9700000
5/1/20145.40315.4000000inches5.4000000
6/1/20143.66303.6600000inches3.6600000
7/1/20142.01312.0100000inches2.0100000
8/1/20143.71283.7100000inches3.7100000
9/1/20148.19268.1900000inches8.1900000
10/1/20142.22302.2200000inches2.2200000
11/1/20144.09304.0900000inches4.0900000
12/1/20140.50310.5000000inches0.5000000
Target
inches
Threshold
inches

Salinity

Units: PSS Year
2014
Historical
period of record
High 0.46 20.48
Mean 0.32 0.39 0.99183
Low 0.20 0.00
No. of Samples 48 659

Five-year Trend Graph

      
1/1/20100.3190.3100000PSS0.3100000
2/1/20100.3160.3100000PSS0.3000000
3/1/20100.2690.2900000PSS0.2600000
4/1/20103.9561.2100000PSS1.5300000
7/1/20100.2561.1900000PSS0.2400000
9/1/20100.2991.5000000PSS0.2900000
10/1/20100.3390.2900000PSS0.3300000
11/1/20100.2890.2900000PSS0.2800000
12/1/20100.2990.2900000PSS0.2800000
1/1/20110.1960.2800000PSS0.1800000
2/1/20110.3390.2900000PSS0.3300000
3/1/20110.3490.2900000PSS0.3300000
4/1/20110.3290.2900000PSS0.3200000
5/1/20110.3790.3100000PSS0.3700000
1/1/20120.3990.3900000PSS0.3900000
2/1/20120.3290.3600000PSS0.3200000
3/1/20120.2990.3300000PSS0.2900000
4/1/20120.2790.3200000PSS0.2700000
5/1/20120.3130.3200000PSS0.3100000
7/1/20120.2730.2900000PSS0.2700000
8/1/20120.2630.2800000PSS0.2600000
9/1/20120.3330.2900000PSS0.3300000
10/1/20120.3630.3100000PSS0.3600000
11/1/20120.4130.3300000PSS0.4100000
12/1/20120.4130.3400000PSS0.4100000
1/1/20130.4430.3700000PSS0.4400000
2/1/20130.3430.3800000PSS0.3400000
3/1/20130.4030.3900000PSS0.4000000
4/1/20130.4130.4000000PSS0.4100000
5/1/20130.3330.3900000PSS0.3300000
6/1/20130.2130.3600000PSS0.2100000
7/1/20130.2930.3300000PSS0.2900000
8/1/20130.2530.3200000PSS0.2500000
9/1/20130.2930.3000000PSS0.2900000
10/1/20130.3340.2800000PSS0.3300000
11/1/20130.3810.2900000PSS0.3800000
12/1/20130.4030.3200000PSS0.4000000
1/1/20140.3940.3400000PSS0.3900000
2/1/20140.3340.3500000PSS0.3300000
3/1/20140.2040.3400000PSS0.2000000
4/1/20140.3840.3500000PSS0.3800000
5/1/20140.2940.3300000PSS0.2900000
6/1/20140.3640.3300000PSS0.3600000
7/1/20140.2740.3100000PSS0.2700000
8/1/20140.3040.3000000PSS0.3000000
9/1/20140.4640.3400000PSS0.4600000
10/1/20140.2840.3300000PSS0.2800000
11/1/20140.3140.3300000PSS0.3100000
12/1/20140.3640.3300000PSS0.3600000

Specific conductance

Units: umho Year
2014
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Trend Graph

      
1/1/2010624.679624.6700000umho623.4900000
2/1/2010627.006625.8400000umho625.0000000
3/1/2010537.679596.4500000umho533.7400000
4/1/2010640.003607.3400000umho640.0000000
7/1/2010512.006579.1700000umho511.8800000
9/1/20100.619384.2000000umho0.6100000
10/1/2010684.339398.9800000umho681.1800000
11/1/2010584.679445.4000000umho581.5600000
12/1/2010589.009474.1200000umho578.3800000
1/1/2011379.506447.6200000umho375.7100000
2/1/2011677.679485.9600000umho675.1200000
3/1/2011699.009602.3600000umho692.7500000
4/1/2011661.009598.4700000umho657.3100000
5/1/2011762.679628.1400000umho756.8000000
1/1/2012799.009799.0000000umho794.5000000
2/1/2012654.339726.6700000umho651.9400000
3/1/2012602.679685.3300000umho599.8300000
4/1/2012563.009654.7500000umho559.5000000
5/1/2012638.003651.4000000umho638.0000000
7/1/2012570.003605.6000000umho570.0000000
8/1/2012539.003582.5300000umho539.0000000
9/1/2012672.003596.4000000umho672.0000000
10/1/2012745.003632.8000000umho745.0000000
11/1/2012835.003672.2000000umho835.0000000
12/1/2012830.003698.5000000umho830.0000000
1/1/2013896.003752.8300000umho896.0000000
2/1/2013694.003778.6700000umho694.0000000
3/1/20133080.1381180.0200000umho1199.8700000
4/1/2013832.0031194.5200000umho832.0000000
5/1/20138562.5082482.4400000umho1835.6100000
6/1/2013435.0032416.6100000umho435.0000000
7/1/2013593.3362366.1600000umho592.1900000
8/1/2013524.0042337.8300000umho524.0000000
9/1/2013563.7171918.4200000umho559.8200000
10/1/2013681.0041893.2600000umho681.0000000
11/1/2013848.805607.6400000umho819.4100000
12/1/2013809.003669.9700000umho809.0000000
1/1/2014794.004703.4200000umho794.0000000
2/1/2014681.004729.5900000umho681.0000000
3/1/2014413.004704.4700000umho413.0000000
4/1/2014789.004722.4700000umho789.0000000
5/1/2014606.004682.0000000umho606.0000000
6/1/2014738.004670.1700000umho738.0000000
7/1/2014561.004631.3300000umho561.0000000
8/1/2014616.004620.5000000umho616.0000000
9/1/2014946.004709.3300000umho946.0000000
10/1/2014583.004675.0000000umho583.0000000
11/1/2014628.004678.6700000umho628.0000000
12/1/2014728.004677.0000000umho728.0000000

Temperature, water

Units: deg F Year
2014
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Trend Graph

      
1/1/201054.92654.9200000deg F54.9000000
2/1/201066.20460.5600000deg F66.1900000
3/1/201069.13663.4200000deg F69.1100000
4/1/201053.58360.9600000deg F42.2600000
7/1/201087.81469.1800000deg F87.8100000
9/1/201086.91676.1000000deg F86.8700000
10/1/201080.78685.1700000deg F80.7400000
11/1/201075.25682.6900000deg F75.2100000
12/1/201052.51676.6500000deg F52.4700000
1/1/201167.24472.5400000deg F67.2400000
2/1/201175.16672.9800000deg F75.1200000
3/1/201180.25671.8700000deg F80.2000000
4/1/201182.65672.1800000deg F82.5700000
5/1/201183.31673.5200000deg F83.2100000
1/1/201268.97668.9700000deg F68.9300000
2/1/201268.10668.5400000deg F68.0900000
3/1/201275.62670.9000000deg F75.5300000
4/1/201274.46671.7900000deg F74.4100000
5/1/201281.86273.8000000deg F81.8600000
7/1/201283.26276.6600000deg F83.2600000
8/1/201282.74279.5900000deg F82.7400000
9/1/201277.97280.0600000deg F77.9700000
10/1/201273.06279.7800000deg F73.0600000
11/1/201264.51276.3100000deg F64.5100000
12/1/201268.94275.0800000deg F68.9400000
1/1/201370.38272.9300000deg F70.3800000
2/1/201368.22270.5100000deg F68.2200000
3/1/201360.36767.5800000deg F60.3100000
4/1/201377.65268.3400000deg F77.6500000
5/1/201376.03770.2600000deg F75.9000000
6/1/201381.03272.2800000deg F81.0300000
7/1/201383.29574.4300000deg F83.2800000
8/1/201383.44376.9700000deg F83.4400000
9/1/201381.05680.4200000deg F81.0400000
10/1/201370.29379.1900000deg F70.2900000
11/1/201371.77578.4800000deg F71.7400000
12/1/201366.18276.0000000deg F66.1800000
1/1/201452.90370.9400000deg F52.9000000
2/1/201469.69368.6500000deg F69.6900000
3/1/201470.29366.8500000deg F70.2900000
4/1/201477.77368.1000000deg F77.7700000
5/1/201480.35369.5300000deg F80.3500000
6/1/201483.55372.4300000deg F83.5500000
7/1/201490.09378.6200000deg F90.0900000
8/1/201477.16379.8700000deg F77.1600000
9/1/201477.27381.0300000deg F77.2700000
10/1/201479.18381.2700000deg F79.1800000
11/1/201459.00377.7100000deg F59.0000000
12/1/201461.81374.0900000deg F61.8100000

Turbidity

Units: NTU Year
2014
Historical
period of record
High 8.00 56.40
Mean 1.68 3.06 5.36943
Low 1.10 0.50
No. of Samples 48 615

Five-year Trend Graph

      
1/1/20107.0797.0700000NTU6.7800000
2/1/20104.7395.9000000NTU4.4600000
3/1/20104.3095.3700000NTU4.2800000
4/1/20102.3094.6000000NTU2.1800000
6/1/20109.1095.5000000NTU7.0500000
7/1/20108.8795.8600000NTU6.6800000
8/1/201012.8067.4700000NTU9.9800000
9/1/20106.80187.9700000NTU6.1900000
10/1/20103.9098.2900000NTU3.6100000
11/1/20102.8697.3900000NTU2.5200000
12/1/20105.0796.7200000NTU4.2300000
1/1/201127.2799.7800000NTU20.7800000
2/1/20113.4398.2200000NTU3.2500000
3/1/20113.2097.6200000NTU2.9000000
4/1/20111.4097.2100000NTU1.3500000
5/1/20111.9697.0600000NTU1.8200000
6/1/20113.7396.8300000NTU3.4100000
7/1/20112.1492.6400000NTU1.7600000
8/1/20114.4392.8100000NTU4.1600000
9/1/20112.0492.6200000NTU1.8600000
10/1/20112.3292.7700000NTU2.2400000
11/1/20116.1493.4700000NTU2.7500000
12/1/20113.2393.3800000NTU2.1300000
1/1/20122.7093.4800000NTU1.9400000
2/1/20125.1093.5900000NTU4.5900000
3/1/20122.3393.6400000NTU2.0800000
4/1/20121.9893.5800000NTU1.7900000
5/1/20120.5032.6400000NTU0.5000000
6/1/20124.5032.8500000NTU4.5000000
7/1/20122.1032.7500000NTU2.1000000
8/1/20123.2032.4400000NTU3.2000000
9/1/20121.6032.3100000NTU1.6000000
10/1/20124.4032.7200000NTU4.4000000
11/1/20122.2033.0000000NTU2.2000000
12/1/20121.7032.5300000NTU1.7000000
1/1/20131.6032.4500000NTU1.6000000
2/1/20131.4032.1500000NTU1.4000000
3/1/20132.0172.2200000NTU1.5400000
4/1/20130.8031.6200000NTU0.8000000
5/1/20131.2361.4600000NTU1.1800000
6/1/20132.2031.5400000NTU2.2000000
7/1/20134.9862.1000000NTU4.4000000
8/1/20134.2032.5700000NTU4.2000000
9/1/20136.5973.3300000NTU5.3700000
10/1/20132.7033.6500000NTU2.7000000
11/1/20133.6364.0500000NTU2.8000000
12/1/20131.3033.9000000NTU1.3000000
1/1/20141.1043.2500000NTU1.1000000
2/1/20141.7042.8400000NTU1.7000000
3/1/20148.0043.0700000NTU8.0000000
4/1/20141.5042.8700000NTU1.5000000
5/1/20141.2042.4700000NTU1.2000000
6/1/20141.1042.4300000NTU1.1000000
7/1/20142.5042.6700000NTU2.5000000
8/1/20141.1042.5700000NTU1.1000000
9/1/20141.8041.5300000NTU1.8000000
10/1/20141.6041.5500000NTU1.6000000
11/1/20141.1041.5300000NTU1.1000000
12/1/20141.9041.6700000NTU1.9000000
Other Measures of Creek Health

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:
  • 1936
Caution

Chlorophyll a

Score: Caution
Units: mg/l Year
2014
Historical
period of record
High 0.0 0.1
Mean 0.0136 0.0129 0.02020641
Low 0.0058 0.0005
No. of Samples 48 158

Five-year Trend Graph

     
5/1/20127.8530.0078500mg/l0.0078500
6/1/201212.3030.0100800mg/l0.0123000
7/1/201225.3030.0151500mg/l0.0253000
8/1/20128.4430.0134700mg/l0.0084400
9/1/20127.9730.0123700mg/l0.0079700
10/1/201298.5030.0267300mg/l0.0985000
11/1/20127.4830.0266700mg/l0.0074800
12/1/201225.9030.0289300mg/l0.0259000
1/1/20138.9330.0262000mg/l0.0089300
2/1/201314.3030.0271800mg/l0.0143000
3/1/20134.5430.0266100mg/l0.0045400
4/1/201366.4030.0212600mg/l0.0664000
5/1/201319.1030.0232000mg/l0.0191000
6/1/201347.2030.0267500mg/l0.0472000
7/1/20137.8330.0265600mg/l0.0078300
8/1/201316.6030.0269500mg/l0.0166000
9/1/201315.9030.0288400mg/l0.0159000
10/1/201323.5030.0216900mg/l0.0235000
11/1/201334.7020.0242900mg/l0.0347000
12/1/201313.9030.0187400mg/l0.0139000
1/1/20146.5640.0185300mg/l0.0065600
2/1/20147.4740.0170100mg/l0.0074700
3/1/20146.8340.0154900mg/l0.0068300
4/1/20145.8240.0125500mg/l0.0058200
5/1/201426.7040.0112100mg/l0.0267000
6/1/201429.5040.0138100mg/l0.0295000
7/1/201427.6040.0173200mg/l0.0276000
8/1/20148.0640.0174200mg/l0.0080600
9/1/201435.7040.0222300mg/l0.0357000
10/1/201423.3040.0251400mg/l0.0233000
11/1/201414.1040.0230400mg/l0.0141000
12/1/20149.8440.0197700mg/l0.0098400
Target
mg/l
Threshold
0.011 mg/l
Pass

Nitrogen, Total

Trend analysis shows a weak decreasing trend.
Score: Pass
Units: mg/l Year
2014
Historical
period of record
High 1.7 7.0
Mean 0.7153 1.1441 1.53861208
Low 0.365 0.054
No. of Samples 20 120

Five-year Trend Graph

     
5/1/2012451.0010.4510000mg/l0.4510000
6/1/20121390.0010.9205000mg/l1.3900000
7/1/2012892.0010.9110000mg/l0.8920000
8/1/2012909.0010.9105000mg/l0.9090000
9/1/2012690.0010.8664000mg/l0.6900000
10/1/2012870.0010.8670000mg/l0.8700000
11/1/2012657.0010.9013300mg/l0.6570000
12/1/2012741.0010.7931700mg/l0.7410000
1/1/2013471.0010.7230000mg/l0.4710000
2/1/2013838.0010.7111700mg/l0.8380000
3/1/2013371.0010.6580000mg/l0.3710000
4/1/20131064.0010.6903300mg/l1.0640000
5/1/2013855.0010.7233300mg/l0.8550000
6/1/2013994.0010.7655000mg/l0.9940000
7/1/2013949.0010.8451700mg/l0.9490000
8/1/20131055.0010.8813300mg/l1.0550000
9/1/20131476.0011.0655000mg/l1.4760000
10/1/2013999.0011.0546700mg/l0.9990000
12/1/2013874.0011.0706000mg/l0.8740000
1/1/2014572.0020.9952000mg/l0.5720000
2/1/2014562.0020.8966000mg/l0.5620000
3/1/2014544.0020.7102000mg/l0.5440000
4/1/2014366.0020.5836000mg/l0.3660000
5/1/2014376.0020.5490000mg/l0.3760000
6/1/2014570.0010.4983300mg/l0.5700000
7/1/2014728.0010.5243300mg/l0.7280000
8/1/20141076.0010.6100000mg/l1.0760000
9/1/20141675.0010.7985000mg/l1.6750000
10/1/20141475.0020.9833300mg/l1.4750000
11/1/20141111.0021.1058300mg/l1.1110000
12/1/20141028.0021.1821700mg/l1.0280000
Pass

Phosphorus, Total

Trend analysis shows a weak decreasing trend.
Score: Pass
Units: mg/l Year
2014
Historical
period of record
High 0.9 2.0
Mean 0.194 0.2593 0.41298392
Low 0.041 0.038
No. of Samples 48 205

Five-year Trend Graph

     
5/1/2012150.0030.1500000mg/l0.1500000
6/1/2012214.0030.1820000mg/l0.2140000
7/1/2012155.0030.1730000mg/l0.1550000
8/1/2012290.0030.2022500mg/l0.2900000
9/1/2012245.0030.2108000mg/l0.2450000
10/1/2012325.0030.2298300mg/l0.3250000
11/1/2012169.0030.2330000mg/l0.1690000
12/1/2012156.0030.2233300mg/l0.1560000
1/1/201374.0030.2098300mg/l0.0740000
2/1/2013151.0030.1866700mg/l0.1510000
3/1/201338.0030.1521700mg/l0.0380000
4/1/2013303.0030.1485000mg/l0.3030000
5/1/2013230.0030.1586700mg/l0.2300000
6/1/2013267.0030.1771700mg/l0.2670000
7/1/2013209.0030.1996700mg/l0.2090000
8/1/2013190.0030.2061700mg/l0.1900000
9/1/2013227.0030.2376700mg/l0.2270000
10/1/2013208.0030.2218300mg/l0.2080000
11/1/2013167.0020.2113300mg/l0.1670000
12/1/2013187.0030.1980000mg/l0.1870000
1/1/2014141.0040.1866700mg/l0.1410000
2/1/2014155.0040.1808300mg/l0.1550000
3/1/2014171.0040.1715000mg/l0.1710000
4/1/201441.0040.1436700mg/l0.0410000
5/1/201490.0040.1308300mg/l0.0900000
6/1/201484.0040.1136700mg/l0.0840000
7/1/2014441.0040.1636700mg/l0.4410000
8/1/2014929.0040.2926700mg/l0.9290000
9/1/2014508.0040.3488300mg/l0.5080000
10/1/2014361.0040.4021700mg/l0.3610000
11/1/2014199.0040.4203300mg/l0.1990000
12/1/2014164.0040.4336700mg/l0.1640000
Target
mg/l
Threshold
mg/l
Pass

Dissolved Oxygen Saturation

Note: Low DO saturation also may be naturally influenced by inflows from nearby wetlands or groundwater sources
Score: Pass
Units: percent (%) Year
2014
Historical
period of record
High 111.5 381.3
Mean 59.41 62.83 30.30453
Low 13.20 0.00
No. of Samples 45 552

Five-year Trend Graph

     
2/1/201082.32282.3200000percent (%)82.3100000
3/1/201080.73281.5300000percent (%)80.6900000
4/1/201065.02276.0200000percent (%)64.9700000
5/1/2010127.45288.8800000percent (%)127.4500000
7/1/201034.21277.9500000percent (%)34.1300000
9/1/201073.17674.9600000percent (%)71.7500000
11/1/201094.70267.3600000percent (%)94.6700000
2/1/201139.11268.9900000percent (%)39.0900000
3/1/201162.62265.4800000percent (%)62.5300000
4/1/201153.99262.6100000percent (%)53.9800000
9/1/201164.84659.4200000percent (%)63.6400000
10/1/201194.11279.4800000percent (%)93.7300000
5/1/201236.14536.1400000percent (%)19.9300000
7/1/201265.20350.6700000percent (%)65.2000000
8/1/201257.60352.9800000percent (%)57.6000000
9/1/201248.80351.9400000percent (%)48.8000000
10/1/201288.70359.2900000percent (%)88.7000000
11/1/201286.30369.3200000percent (%)86.3000000
12/1/2012110.50376.1800000percent (%)110.5000000
1/1/201391.20380.5200000percent (%)91.2000000
2/1/201360.10380.9300000percent (%)60.1000000
3/1/201312.50374.8800000percent (%)12.5000000
4/1/201367.80371.4000000percent (%)67.8000000
5/1/201333.20362.5500000percent (%)33.2000000
6/1/201366.00355.1300000percent (%)66.0000000
7/1/201384.00353.9300000percent (%)84.0000000
8/1/201388.70358.7000000percent (%)88.7000000
9/1/201375.40369.1800000percent (%)75.4000000
10/1/201366.00368.8800000percent (%)66.0000000
12/1/201374.70377.7600000percent (%)74.7000000
1/1/2014111.50483.2600000percent (%)111.5000000
2/1/201484.40182.4000000percent (%)84.4000000
3/1/201477.90482.9000000percent (%)77.9000000
4/1/201469.30483.5600000percent (%)69.3000000
5/1/201479.70482.9200000percent (%)79.7000000
6/1/201440.10477.1500000percent (%)40.1000000
7/1/201453.50467.4800000percent (%)53.5000000
8/1/201461.00463.5800000percent (%)61.0000000
9/1/201413.20452.8000000percent (%)13.2000000
10/1/201453.30450.1300000percent (%)53.3000000
11/1/201471.00448.6800000percent (%)71.0000000
12/1/201495.10457.8500000percent (%)95.1000000
Target
percent (%)
Threshold
56.00 percent (%)

BOD, Biochemical oxygen demand

Units: mg/l Year
2014
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Trend Graph

     
5/1/20123.4733.4700000mg/l3.4700000
6/1/20122.0032.7400000mg/l2.0000000
7/1/20122.6732.7100000mg/l2.6700000
8/1/20121.0032.2900000mg/l1.0000000
9/1/20121.5232.1300000mg/l1.5200000
10/1/20125.1332.6300000mg/l5.1300000
11/1/20121.8732.3700000mg/l1.8700000
12/1/20124.8932.8500000mg/l4.8900000
1/1/20132.2332.7700000mg/l2.2300000
2/1/20132.4433.0100000mg/l2.4400000
3/1/20131.9633.0900000mg/l1.9600000
4/1/201312.7034.3500000mg/l12.7000000
5/1/20134.1534.7300000mg/l4.1500000
6/1/20132.8234.3800000mg/l2.8200000
7/1/20131.4334.2500000mg/l1.4300000
8/1/20131.6834.1200000mg/l1.6800000
9/1/20131.2634.0100000mg/l1.2600000
10/1/20132.2232.2600000mg/l2.2200000
11/1/20134.3122.2900000mg/l4.3100000
12/1/20133.2132.3500000mg/l3.2100000
1/1/20141.2642.3200000mg/l1.2600000
2/1/20141.7142.3300000mg/l1.7100000
3/1/20141.5242.3700000mg/l1.5200000
4/1/20141.4842.2500000mg/l1.4800000
5/1/20145.0342.3700000mg/l5.0300000
6/1/20143.8942.4800000mg/l3.8900000
7/1/20142.6542.7100000mg/l2.6500000
8/1/20142.0342.7700000mg/l2.0300000
9/1/20142.0842.8600000mg/l2.0800000
10/1/20141.5742.8800000mg/l1.5700000
11/1/20141.2842.2500000mg/l1.2800000
12/1/20142.1341.9600000mg/l2.1300000

Color

Units: PCU Year
2014
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Trend Graph

     

Enterococcus Group Bacteria

Units: cfu/100ml Year
2014
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Trend Graph

     
Target
cfu/100ml
Threshold
cfu/100ml

Nitrogen, Ammonia + Ammonium as N

Units: ug/l Year
2014
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Trend Graph

     
5/1/20128.0038.0000000ug/l8.0000000
6/1/2012157.00382.5000000ug/l157.0000000
7/1/201225.00363.3300000ug/l25.0000000
8/1/201221.00352.7500000ug/l21.0000000
9/1/201236.00349.4000000ug/l36.0000000
10/1/20128.00342.5000000ug/l8.0000000
11/1/201250.00349.5000000ug/l50.0000000
12/1/201221.00326.8300000ug/l21.0000000
1/1/201316.00325.3300000ug/l16.0000000
2/1/201329.00326.6700000ug/l29.0000000
3/1/201316.00323.3300000ug/l16.0000000
4/1/201316.00324.6700000ug/l16.0000000
5/1/201316.00319.0000000ug/l16.0000000
6/1/20138.00316.8300000ug/l8.0000000
7/1/201316.00316.8300000ug/l16.0000000
8/1/201316.00314.6700000ug/l16.0000000
9/1/201316.00314.6700000ug/l16.0000000
10/1/201330.00317.0000000ug/l30.0000000
11/1/20138.00215.6700000ug/l8.0000000
12/1/201367.00325.5000000ug/l67.0000000
1/1/201428.01527.5000000ug/l8.7900000
2/1/201411.20526.7000000ug/l3.5200000
3/1/2014144.04548.0400000ug/l45.2100000
4/1/20146.00444.0400000ug/l1.4200000
5/1/20146.00443.7100000ug/l1.4200000
6/1/201458.41542.2800000ug/l18.3400000
7/1/20146.40538.6800000ug/l2.0100000
8/1/20146.40537.8800000ug/l2.0100000
9/1/20148.80515.3400000ug/l2.7600000
10/1/201497.62530.6100000ug/l30.6500000
11/1/201432.01534.9400000ug/l10.0500000
12/1/201411.20527.0700000ug/l3.5200000

Nitrogen, Kjeldahl

Units: ug/l Year
2014
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Trend Graph

     
5/1/2012443.003443.0000000ug/l443.0000000
6/1/20121070.003756.5000000ug/l1070.0000000
7/1/2012720.003744.3300000ug/l720.0000000
8/1/2012717.003737.5000000ug/l717.0000000
9/1/2012581.003706.2000000ug/l581.0000000
10/1/2012830.003726.8300000ug/l830.0000000
11/1/2012556.003745.6700000ug/l556.0000000
12/1/2012728.003688.6700000ug/l728.0000000
1/1/2013463.003645.8300000ug/l463.0000000
2/1/2013810.003661.3300000ug/l810.0000000
3/1/2013359.003624.3300000ug/l359.0000000
4/1/20131060.003662.6700000ug/l1060.0000000
5/1/2013851.003711.8300000ug/l851.0000000
6/1/2013918.003743.5000000ug/l918.0000000
7/1/2013798.003799.3300000ug/l798.0000000
8/1/2013905.003815.1700000ug/l905.0000000
9/1/2013963.003915.8300000ug/l963.0000000
10/1/2013816.003875.1700000ug/l816.0000000
11/1/2013846.002874.3300000ug/l846.0000000
12/1/2013773.003850.1700000ug/l773.0000000
1/1/2014545.004808.0000000ug/l545.0000000
2/1/2014559.004750.3300000ug/l559.0000000
3/1/2014503.004673.6700000ug/l503.0000000
4/1/2014363.004598.1700000ug/l363.0000000
5/1/2014373.004519.3300000ug/l373.0000000
6/1/2014550.004482.1700000ug/l550.0000000
7/1/2014717.004510.8300000ug/l717.0000000
8/1/2014811.004552.8300000ug/l811.0000000
9/1/2014797.004601.8300000ug/l797.0000000
10/1/20141180.004738.0000000ug/l1180.0000000
11/1/2014887.004823.6700000ug/l887.0000000
12/1/2014794.004864.3300000ug/l794.0000000

Nitrogen, Nitrite + Nitrate as N

Units: ug/l Year
2014
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Trend Graph

     
5/1/20128.0038.0000000ug/l8.0000000
6/1/2012320.003164.0000000ug/l320.0000000
7/1/2012172.003166.6700000ug/l172.0000000
8/1/2012192.003173.0000000ug/l192.0000000
9/1/2012109.003160.2000000ug/l109.0000000
10/1/201240.003140.1700000ug/l40.0000000
11/1/2012101.003155.6700000ug/l101.0000000
12/1/201213.003104.5000000ug/l13.0000000
1/1/20138.00377.1700000ug/l8.0000000
2/1/201328.00349.8300000ug/l28.0000000
3/1/201312.00333.6700000ug/l12.0000000
4/1/20134.00327.6700000ug/l4.0000000
5/1/20134.00311.5000000ug/l4.0000000
6/1/201376.00322.0000000ug/l76.0000000
7/1/2013151.00345.8300000ug/l151.0000000
8/1/2013150.00366.1700000ug/l150.0000000
9/1/2013513.003149.6700000ug/l513.0000000
10/1/2013183.003179.5000000ug/l183.0000000
11/1/201351.002187.3300000ug/l51.0000000
12/1/2013101.003191.5000000ug/l101.0000000
1/1/201427.004170.8300000ug/l27.0000000
2/1/20144.003146.5000000ug/l4.0000000
3/1/201441.00467.8300000ug/l41.0000000
4/1/20144.00338.0000000ug/l4.0000000
5/1/20144.00330.1700000ug/l4.0000000
6/1/201420.00416.6700000ug/l20.0000000
7/1/201411.00314.0000000ug/l11.0000000
8/1/2014265.00457.5000000ug/l265.0000000
9/1/2014878.004197.0000000ug/l878.0000000
10/1/2014295.004245.5000000ug/l295.0000000
11/1/2014224.004282.1700000ug/l224.0000000
12/1/2014234.004317.8300000ug/l234.0000000

Oysters

Units: Year
2014
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Trend Graph

     

pH

Units: None Year
2014
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Trend Graph

     
2/1/20108.1018.1000000None8.1000000
3/1/20108.0018.0500000None8.0000000
4/1/20108.0018.0300000None8.0000000
5/1/20107.9018.0000000None7.9000000
7/1/20108.1018.0200000None8.1000000
9/1/20107.9737.9900000None7.9600000
11/1/20107.6017.8900000None7.6000000
2/1/20117.9017.8200000None7.9000000
3/1/20117.7017.7300000None7.7000000
4/1/20117.8017.7500000None7.8000000
9/1/20116.8337.3200000None6.6800000
10/1/20115.2016.0200000None5.2000000
5/1/20127.6347.6300000None7.6200000
7/1/20127.3537.4900000None7.3500000
8/1/20127.7537.5800000None7.7500000
9/1/20127.7537.6200000None7.7500000
10/1/20127.9237.6800000None7.9200000
11/1/20128.0437.7600000None8.0400000
12/1/20128.1237.8200000None8.1200000
1/1/20137.9837.9300000None7.9800000
2/1/20137.9037.9500000None7.9000000
3/1/20137.7837.9600000None7.7800000
4/1/20137.8037.9400000None7.8000000
5/1/20138.0837.9400000None8.0800000
6/1/20137.5637.8500000None7.5600000
7/1/20138.2037.8900000None8.2000000
8/1/20137.9137.8900000None7.9100000
9/1/20137.7237.8800000None7.7200000
10/1/20137.7237.8700000None7.7200000
12/1/20137.9037.8900000None7.9000000
1/1/20147.9047.8300000None7.9000000
2/1/20147.7217.7900000None7.7200000
3/1/20147.6137.7700000None7.6100000
4/1/20147.6737.7600000None7.6700000
5/1/20148.0137.8000000None8.0100000
6/1/20148.0047.8200000None8.0000000
7/1/20148.0237.8400000None8.0200000
8/1/20148.2437.9300000None8.2400000
9/1/20147.9337.9800000None7.9300000
10/1/20147.6047.9700000None7.6000000
11/1/20147.9737.9600000None7.9700000
12/1/20147.9247.9500000None7.9200000

Rainfall

Units: inches Year
2014
Historical
period of record
High 41.6 57.0
Mean 14.0782772975484
Low 8.52
No. of Samples 356 5,448

Five-year Trend Graph

     
1/1/20103.95313.9500000inches3.9500000
2/1/20102.11282.1100000inches2.1100000
3/1/20105.09315.0900000inches5.0900000
4/1/20101.38301.3800000inches1.3800000
5/1/20100.87310.8700000inches0.8700000
6/1/20106.31306.3100000inches6.3100000
7/1/20105.45315.4500000inches5.4500000
8/1/201012.113112.1100000inches12.1100000
9/1/20102.24302.2400000inches2.2400000
10/1/20100.01310.0100000inches0.0100000
11/1/20102.77302.7700000inches2.7700000
12/1/20100.86310.8600000inches0.8600000
1/1/20112.83312.8300000inches2.8300000
2/1/20110.73280.7300000inches0.7300000
3/1/20115.81315.8100000inches5.8100000
4/1/20111.49301.4900000inches1.4900000
5/1/20112.21312.2100000inches2.2100000
6/1/20113.24303.2400000inches3.2400000
7/1/20118.71318.7100000inches8.7100000
8/1/20117.69317.6900000inches7.6900000
9/1/20114.01304.0100000inches4.0100000
10/1/20111.88301.8800000inches1.8800000
11/1/20111.10301.1000000inches1.1000000
12/1/20110.17300.1700000inches0.1700000
1/1/20120.67290.6700000inches0.6700000
2/1/20121.05291.0500000inches1.0500000
3/1/20121.67311.6700000inches1.6700000
4/1/20122.57242.5700000inches2.5700000
5/1/20121.86311.8600000inches1.8600000
6/1/201215.043015.0400000inches15.0400000
7/1/20124.59314.5900000inches4.5900000
8/1/20128.33318.3300000inches8.3300000
9/1/20122.20302.2000000inches2.2000000
10/1/20122.49312.4900000inches2.4900000
11/1/20120.00280.0000000inches0.0000000
12/1/20121.59311.5900000inches1.5900000
1/1/20130.17310.1700000inches0.1700000
2/1/20131.06231.0600000inches1.0600000
3/1/20130.81300.8100000inches0.8100000
4/1/20133.43303.4300000inches3.4300000
5/1/20132.93312.9300000inches2.9300000
6/1/20138.86318.8600000inches8.8600000
7/1/201311.003111.0000000inches11.0000000
8/1/201310.603110.6000000inches10.6000000
9/1/201315.013015.0100000inches15.0100000
10/1/20130.96310.9600000inches0.9600000
11/1/20130.91300.9100000inches0.9100000
12/1/20130.20310.2000000inches0.2000000
1/1/20142.55312.5500000inches2.5500000
2/1/20142.36282.3600000inches2.3600000
3/1/20145.96315.9600000inches5.9600000
4/1/20140.97290.9700000inches0.9700000
5/1/20145.40315.4000000inches5.4000000
6/1/20143.66303.6600000inches3.6600000
7/1/20142.01312.0100000inches2.0100000
8/1/20143.71283.7100000inches3.7100000
9/1/20148.19268.1900000inches8.1900000
10/1/20142.22302.2200000inches2.2200000
11/1/20144.09304.0900000inches4.0900000
12/1/20140.50310.5000000inches0.5000000
Target
inches
Threshold
inches

Salinity

Units: PSS Year
2014
Historical
period of record
High 36.7 45.0
Mean 29.82 5.89 15.35189
Low 18.36 0.00
No. of Samples 45 2,856

Five-year Trend Graph

     
2/1/201030.70230.7000000PSS30.7000000
3/1/201030.50230.6000000PSS30.5000000
4/1/201030.40230.5300000PSS30.4000000
5/1/201035.95231.8900000PSS35.9500000
7/1/201032.00231.9100000PSS32.0000000
9/1/201032.52632.7200000PSS32.4300000
11/1/201037.25233.9200000PSS37.2500000
2/1/201130.80233.5200000PSS30.8000000
3/1/201132.40233.4800000PSS32.4000000
4/1/201131.10232.8900000PSS31.1000000
9/1/201131.47631.2900000PSS31.4000000
10/1/201133.90232.6900000PSS33.9000000
5/1/201234.65534.6500000PSS34.6500000
7/1/201216.11325.3800000PSS16.1100000
8/1/201223.88324.8800000PSS23.8800000
9/1/201229.92326.1400000PSS29.9200000
10/1/201222.30325.3700000PSS22.3000000
11/1/201234.17325.2800000PSS34.1700000
12/1/201233.67326.6800000PSS33.6700000
1/1/201333.89329.6400000PSS33.8900000
2/1/201332.96331.1500000PSS32.9600000
3/1/201332.85331.6400000PSS32.8500000
4/1/201333.49333.5100000PSS33.4900000
5/1/201335.27333.6900000PSS35.2700000
6/1/201325.43332.3200000PSS25.4300000
7/1/201325.06330.8400000PSS25.0600000
8/1/201321.88329.0000000PSS21.8800000
9/1/201312.73325.6400000PSS12.7300000
10/1/201324.38324.1300000PSS24.3800000
12/1/201325.88321.9900000PSS25.8800000
1/1/201429.13422.8000000PSS29.1300000
2/1/201430.17124.4600000PSS30.1700000
3/1/201424.62426.8400000PSS24.6200000
4/1/201433.92428.7400000PSS33.9200000
5/1/201433.55429.5500000PSS33.5500000
6/1/201434.42430.9700000PSS34.4200000
7/1/201426.04430.4500000PSS26.0400000
8/1/201436.70431.5400000PSS36.7000000
9/1/201433.68433.0500000PSS33.6800000
10/1/201418.36430.4600000PSS18.3600000
11/1/201430.09429.8800000PSS30.0900000
12/1/201433.15429.6700000PSS33.1500000

Specific conductance

Units: umho Year
2014
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Trend Graph

     
5/1/201252254.00352254.0000000umho52254.0000000
7/1/201226488.00339371.0000000umho26488.0000000
8/1/201237802.00338848.0000000umho37802.0000000
9/1/201246254.00340699.5000000umho46254.0000000
10/1/201235470.00339653.6000000umho35470.0000000
11/1/201251846.00339572.0000000umho51846.0000000
12/1/201251203.00341510.5000000umho51203.0000000
1/1/201351491.00345677.6700000umho51491.0000000
2/1/201350274.00347756.3300000umho50274.0000000
3/1/201350074.00348393.0000000umho50074.0000000
4/1/201351090.00350996.3300000umho51090.0000000
5/1/201353595.00351287.8300000umho53595.0000000
6/1/201340520.00349507.3300000umho40520.0000000
7/1/201339505.00347509.6700000umho39505.0000000
8/1/201335056.00344973.3300000umho35056.0000000
9/1/201321409.00340195.8300000umho21409.0000000
10/1/201338402.00338081.1700000umho38402.0000000
12/1/201340386.00334951.6000000umho40386.0000000
1/1/201444944.00436039.4000000umho44944.0000000
2/1/201446442.00138316.6000000umho46442.0000000
3/1/201438648.00441764.4000000umho38648.0000000
4/1/201451675.00444419.0000000umho51675.0000000
5/1/201451242.00445556.1700000umho51242.0000000
6/1/201452566.00447586.1700000umho52566.0000000
7/1/201441003.00446929.3300000umho41003.0000000
8/1/201455341.00448412.5000000umho55341.0000000
9/1/201451532.00450559.8300000umho51532.0000000
10/1/201429780.00446910.6700000umho29780.0000000
11/1/201446144.00446061.0000000umho46144.0000000
12/1/201450467.00445711.1700000umho50467.0000000

Temperature, water

Units: deg F Year
2014
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Trend Graph

     
2/1/201054.95254.9500000deg F54.9500000
3/1/201057.65256.3000000deg F57.6500000
4/1/201075.20262.6000000deg F75.2000000
5/1/201081.95267.4400000deg F81.9500000
7/1/201086.99271.3500000deg F86.9900000
9/1/201086.03682.5400000deg F86.0100000
11/1/201080.87284.6300000deg F80.8700000
2/1/201161.43276.1100000deg F61.4300000
3/1/201171.96271.4200000deg F71.9600000
4/1/201179.52273.4500000deg F79.5200000
9/1/201185.58682.5500000deg F85.5700000
10/1/201181.50283.5400000deg F81.5000000
5/1/201280.69480.6900000deg F80.6100000
7/1/201286.16283.4300000deg F86.1600000
8/1/201283.98283.6100000deg F83.9800000
9/1/201282.80283.4100000deg F82.8000000
10/1/201280.71282.8700000deg F80.7100000
11/1/201266.27279.9800000deg F66.2700000
12/1/201272.01278.6600000deg F72.0100000
1/1/201371.35276.1900000deg F71.3500000
2/1/201374.73274.6500000deg F74.7300000
3/1/201362.92271.3300000deg F62.9200000
4/1/201380.26271.2600000deg F80.2600000
5/1/201384.60274.3100000deg F84.6000000
6/1/201386.76276.7700000deg F86.7600000
7/1/201386.85279.3500000deg F86.8500000
8/1/201386.02281.2400000deg F86.0200000
9/1/201385.95285.0700000deg F85.9500000
10/1/201379.79285.0000000deg F79.7900000
12/1/201372.36282.1900000deg F72.3600000
1/1/201463.05377.4300000deg F63.0500000
2/1/201474.05175.0400000deg F74.0500000
3/1/201470.38371.9300000deg F70.3800000
4/1/201480.40372.0500000deg F80.4000000
5/1/201483.70373.9900000deg F83.7000000
6/1/201489.01376.7700000deg F89.0100000
7/1/201490.46381.3300000deg F90.4600000
8/1/201476.33381.7100000deg F76.3300000
9/1/201488.09384.6700000deg F88.0900000
10/1/201482.69385.0500000deg F82.6900000
11/1/201465.59382.0300000deg F65.5900000
12/1/201464.76377.9900000deg F64.7600000

Turbidity

Units: NTU Year
2014
Historical
period of record
High 15.0 31.3
Mean 4.83 3.78 3.39031
Low 1.40 0.62
No. of Samples 48 514

Five-year Trend Graph

     
2/1/20103.6013.6000000NTU3.6000000
3/1/20102.4013.0000000NTU2.4000000
4/1/20105.1013.7000000NTU5.1000000
5/1/20102.9013.5000000NTU2.9000000
7/1/20102.6013.3200000NTU2.6000000
9/1/20103.9733.6400000NTU3.8600000
11/1/20104.4313.6700000NTU4.4300000
2/1/20112.1013.5000000NTU2.1000000
3/1/20112.4012.9800000NTU2.4000000
4/1/20113.6013.1300000NTU3.6000000
9/1/20112.3032.9500000NTU2.2900000
10/1/20114.6013.4500000NTU4.6000000
5/1/20123.2033.2000000NTU3.2000000
6/1/20124.3033.7500000NTU4.3000000
7/1/20123.6033.7000000NTU3.6000000
8/1/20123.5033.6500000NTU3.5000000
9/1/20122.8033.4800000NTU2.8000000
10/1/20126.9034.0500000NTU6.9000000
11/1/20126.3034.5700000NTU6.3000000
12/1/20127.5035.1000000NTU7.5000000
1/1/20136.6035.6000000NTU6.6000000
2/1/20133.7035.6300000NTU3.7000000
3/1/20133.5035.7500000NTU3.5000000
4/1/20139.8036.2300000NTU9.8000000
5/1/20132.9035.6700000NTU2.9000000
6/1/20136.3035.4700000NTU6.3000000
7/1/20134.7035.1500000NTU4.7000000
8/1/20135.0035.3700000NTU5.0000000
9/1/20135.1035.6300000NTU5.1000000
10/1/20135.9034.9800000NTU5.9000000
11/1/20135.0025.3300000NTU5.0000000
12/1/20139.9035.9300000NTU9.9000000
1/1/20144.3045.8700000NTU4.3000000
2/1/20146.3046.0800000NTU6.3000000
3/1/201415.0047.7300000NTU15.0000000
4/1/20143.4047.3200000NTU3.4000000
5/1/20144.9047.3000000NTU4.9000000
6/1/20143.9046.3000000NTU3.9000000
7/1/20145.7046.5300000NTU5.7000000
8/1/20144.1046.1700000NTU4.1000000
9/1/20145.8044.6300000NTU5.8000000
10/1/20146.8045.2000000NTU6.8000000
11/1/20144.7045.1700000NTU4.7000000
12/1/20141.4044.7500000NTU1.4000000
Other Measures of Creek Health

Oysters

Because they are immobile and will tolerate a fairly wide salinity range, eastern oysters (Crassostrea 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 »

Loading oyster site map...

Impervious Features

Whitaker Bayou is located within the Sarasota Bay Watershed. View details about the 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 Whitaker Bayou Basin is covered by impervious surfaces.

Loading interactive chart...

Land Use / Land Cover

Whitaker Bayou is located within the Sarasota Bay Watershed. View details about the 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 »

Loading interactive chart...

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.