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Forked 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: 5,863 acres
  • Location: South Sarasota County
  • Discharges into: Lemon Bay

Historically, the Forked Creek Basin consisted of a series of contiguous wetlands and mesic hammocks that extended from the creek’s headwaters to its outfall. The entirety of Forked Creek is predominantly marine. There are three branches within this basin: the eastern, main branch which extends from State Road 776 north and east to the headwaters; the central branch which extends from the main confluence at SR776 north into the Dale Lakes area; and the western branch which extends north of Overbrook Road to Manasota Beach Road. The eastern branch traverses mainly undeveloped range land and sparsely populated land, while the central branch traverses through two urban subdivisions and one sparsely populated section. The flow characteristics of the creek have been greatly diminished because of the invasion of a variety of exotics, debris and storm-damaged trees. Sarasota County has designated the Forked Creek basin as a regional stormwater facility requiring immediate attention. For basin details see: Forked Creek Drainage Improvements, Preliminary Report Phase I (2000)

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:
  • 2039
Pass

Chlorophyll a

Score: Pass
Units: mg/l Year
2015
Historical
period of record
High 0.2 0.2
Mean 0.0098 0.0148 0.03069829
Low 0.0003 0.0003
No. of Samples 75 976

Five-year Rolling Average Graph

     
1/1/201126.62110.0266200mg/l0.0149300
2/1/201116.64110.0216300mg/l0.0145400
3/1/20118.85110.0173700mg/l0.0085600
4/1/201116.67110.0172000mg/l0.0156000
5/1/201122.44110.0182400mg/l0.0207500
6/1/201113.2380.0174100mg/l0.0120800
7/1/201132.22110.0183400mg/l0.0195000
8/1/201142.57110.0226600mg/l0.0272600
9/1/201117.96110.0241800mg/l0.0144600
10/1/201159.35110.0313000mg/l0.0466200
11/1/201124.7090.0316700mg/l0.0186000
12/1/201119.81110.0327700mg/l0.0153600
1/1/201236.1060.0334200mg/l0.0245000
2/1/201235.5980.0322500mg/l0.0226800
3/1/201250.7480.0377200mg/l0.0318000
4/1/201260.7180.0379400mg/l0.0389000
5/1/201220.0250.0371600mg/l0.0200000
6/1/201217.5250.0367800mg/l0.0175200
7/1/20129.9720.0324300mg/l0.0099700
8/1/2012176.4050.0558900mg/l0.1743400
9/1/201244.9380.0549300mg/l0.0292400
10/1/201232.4180.0502100mg/l0.0279700
11/1/20129.8580.0485100mg/l0.0094700
12/1/20124.4550.0463400mg/l0.0035100
1/1/201314.8180.0471400mg/l0.0134700
2/1/201311.6080.0196800mg/l0.0079300
3/1/201318.3480.0152400mg/l0.0076900
4/1/201313.6680.0121200mg/l0.0125000
5/1/201315.3680.0130400mg/l0.0141800
6/1/201313.9380.0146200mg/l0.0114100
7/1/201313.9880.0144800mg/l0.0099000
8/1/201329.9880.0175400mg/l0.0160900
9/1/201311.9080.0164700mg/l0.0104000
10/1/201312.9980.0163600mg/l0.0092900
11/1/201393.8670.0294400mg/l0.0526700
12/1/20137.1380.0283100mg/l0.0066700
1/1/20147.5290.0272300mg/l0.0039800
2/1/201412.3490.0242900mg/l0.0092300
3/1/201411.8290.0242800mg/l0.0089700
4/1/20147.6990.0233900mg/l0.0072600
5/1/201411.5290.0096700mg/l0.0101600
6/1/201436.0490.0144900mg/l0.0275300
7/1/201421.9360.0168900mg/l0.0197200
8/1/201435.0990.0206800mg/l0.0296200
9/1/201414.3790.0211100mg/l0.0129100
10/1/201422.7290.0236100mg/l0.0123100
11/1/201410.0290.0233600mg/l0.0049900
12/1/201418.4990.0204400mg/l0.0132700
1/1/201513.9180.0191000mg/l0.0096400
2/1/20155.3180.0141400mg/l0.0019500
3/1/20159.2080.0132800mg/l0.0058800
4/1/201518.2370.0125300mg/l0.0181500
5/1/201533.0980.0163700mg/l0.0310100
6/1/201513.0060.0154600mg/l0.0129600
7/1/20158.0630.0144800mg/l0.0068100
8/1/201512.7070.0157100mg/l0.0093300
9/1/201515.4470.0167500mg/l0.0116500
10/1/201572.8260.0258500mg/l0.0295400
11/1/20154.6020.0211000mg/l0.0043400
12/1/201516.0450.0216100mg/l0.0052400
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 3.4 8.1
Mean 1.0758 1.0815 0.7179178
Low 0.671 0.00
No. of Samples 36 594

Five-year Rolling Average Graph

     
1/1/20111438.6051.4386000mg/l1.3918600
2/1/20111234.6051.3366000mg/l1.0716700
3/1/20111027.8051.2336700mg/l0.9558800
4/1/20111133.6051.2086500mg/l1.0915500
5/1/20111182.8051.2034800mg/l1.1522000
6/1/20111337.6731.2258500mg/l1.2402200
7/1/20111400.8051.2195500mg/l1.3132600
8/1/20111065.8051.1914100mg/l0.9832600
9/1/20111156.0051.2127800mg/l1.1107100
10/1/20111289.2051.2387100mg/l1.2337500
11/1/2011850.2541.1832900mg/l0.7954200
12/1/2011968.8051.1218100mg/l0.9332800
1/1/20121286.0021.1026800mg/l1.1634000
2/1/20121364.3331.1524300mg/l1.2260900
3/1/20121543.6731.2170400mg/l1.3286500
4/1/20121512.6731.2542900mg/l1.3982000
5/1/20121048.0021.2872500mg/l1.0160000
6/1/2012910.5021.2775300mg/l0.8897000
8/1/20122149.5021.4328700mg/l2.0474300
9/1/20121172.5041.3586300mg/l1.0890400
10/1/20121345.2541.3251500mg/l1.3386200
11/1/2012848.2541.2852000mg/l0.8353300
12/1/2012771.0021.2573000mg/l0.7675400
1/1/2013951.7541.2063800mg/l0.9487300
2/1/20131155.5041.0407100mg/l1.1288100
3/1/20131332.7541.0674200mg/l1.2821200
4/1/20131008.5041.0112900mg/l0.9951500
5/1/20131073.2541.0487900mg/l1.0540700
6/1/20131068.2541.0983300mg/l1.0575400
7/1/20131332.0041.1617100mg/l0.5129400
8/1/20131812.2541.2711700mg/l1.7699500
9/1/20131228.0041.2537100mg/l1.2252100
10/1/20131198.5041.2853800mg/l1.1869000
11/1/20131238.6731.3129500mg/l1.2348600
12/1/20131080.7541.3150300mg/l1.0513100
1/1/20141033.6051.2653000mg/l0.9833000
2/1/20141069.4051.1414900mg/l0.9662200
3/1/2014802.2051.0705200mg/l0.7417300
4/1/2014878.4051.0171700mg/l0.8691400
5/1/20141423.8051.0480300mg/l1.3916800
6/1/2014974.0041.0302300mg/l0.9363600
7/1/20141230.5021.0630500mg/l1.0886800
8/1/20141266.7541.0959400mg/l1.2130200
9/1/20141111.5041.1474900mg/l1.0886100
10/1/20141452.8051.2432300mg/l1.4119700
11/1/20141093.2051.1881300mg/l1.0763600
12/1/20141048.8051.2005900mg/l0.9842200
1/1/2015792.0041.1275100mg/l0.7728400
2/1/2015778.0041.0460500mg/l0.7777200
3/1/20151151.7541.0527600mg/l1.1422100
4/1/2015991.3330.9758500mg/l0.9806300
5/1/20151231.0040.9988100mg/l1.1711500
6/1/2015809.0030.9588500mg/l0.8040300
7/1/2015934.0010.9825100mg/l0.9340000
8/1/20151521.0031.1063500mg/l1.5156400
9/1/20151434.0031.1533900mg/l1.3823900
10/1/20151977.3331.3177200mg/l1.7585800
11/1/2015951.0011.2710600mg/l0.9510000
12/1/20151200.0031.3362200mg/l1.1512000

Phosphorus, Total

We were unable to determine a trend for the data available.
Units: mg/l Year
2015
Historical
period of record
High 0.4 3.8
Mean 0.2094 0.3066 0.47144164
Low 0.063 0.03
No. of Samples 75 1,085

Five-year Rolling Average Graph

     
1/1/20111187.27111.1872700mg/l0.5035500
2/1/2011810.00110.9986400mg/l0.4771200
3/1/2011643.18110.8801500mg/l0.3998400
4/1/2011700.18110.8351600mg/l0.5336200
5/1/2011782.73110.8246700mg/l0.4818400
6/1/2011704.6380.8046700mg/l0.4065500
7/1/2011634.55110.7125500mg/l0.4537900
8/1/2011580.73110.6743300mg/l0.3956300
9/1/2011610.00110.6688000mg/l0.3709400
10/1/2011662.82110.6625800mg/l0.4416200
11/1/2011613.6790.6344000mg/l0.3742500
12/1/2011568.73110.6117500mg/l0.3426900
1/1/2012985.0060.6701600mg/l0.7266400
2/1/2012806.7580.7078300mg/l0.5077600
3/1/2012705.1380.7236800mg/l0.4924000
4/1/2012467.6380.6911500mg/l0.3645300
5/1/2012222.2050.6259100mg/l0.2108300
6/1/2012170.6050.5595500mg/l0.1686800
7/1/2012366.0020.4563900mg/l0.3660000
8/1/2012401.6050.3888600mg/l0.3886200
9/1/2012256.0080.3140100mg/l0.2312400
10/1/2012267.2580.2806100mg/l0.2644500
11/1/2012193.6380.2758500mg/l0.1922900
12/1/2012179.8050.2773800mg/l0.1661200
1/1/2013263.5080.2603000mg/l0.2474800
2/1/2013274.5080.2391100mg/l0.2537000
3/1/2013377.3880.2593400mg/l0.3502700
4/1/2013190.7580.2465900mg/l0.1867500
5/1/2013219.2580.2508600mg/l0.2087500
6/1/2013271.1380.2660900mg/l0.2577500
7/1/2013309.6380.2737700mg/l0.3016200
8/1/2013310.3880.2797500mg/l0.3030800
9/1/2013250.1380.2585500mg/l0.2433600
10/1/2013309.1380.2782800mg/l0.3082500
11/1/2013324.0070.2957300mg/l0.3077900
12/1/2013428.6380.3219800mg/l0.3302100
1/1/2014201.3390.3039300mg/l0.1909600
2/1/2014307.1190.3033900mg/l0.3049700
3/1/2014248.6790.3031500mg/l0.2461800
4/1/2014256.4490.2943600mg/l0.2522600
5/1/2014287.5690.2882900mg/l0.2869300
6/1/2014267.3390.2614100mg/l0.2657000
7/1/2014248.6760.2693000mg/l0.2448800
8/1/2014335.3390.2740000mg/l0.3161400
9/1/2014248.2290.2739300mg/l0.2386800
10/1/2014295.7890.2804800mg/l0.2931500
11/1/2014254.0090.2748900mg/l0.2432100
12/1/2014338.2290.2867000mg/l0.2964800
1/1/2015222.1380.2822800mg/l0.2127100
2/1/2015243.0080.2668900mg/l0.2096300
3/1/2015335.7580.2814800mg/l0.3228900
4/1/2015219.7170.2688000mg/l0.2125600
5/1/2015217.5080.2627200mg/l0.1631100
6/1/2015220.5060.2431000mg/l0.2196400
7/1/2015176.0030.2354100mg/l0.1707300
8/1/2015210.8670.2300500mg/l0.1975800
9/1/2015175.4370.2033300mg/l0.1737700
10/1/2015238.3360.2064400mg/l0.2365700
11/1/2015251.0020.2120200mg/l0.2502800
12/1/2015180.0050.2052700mg/l0.1800000
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 76.0 169.7
Mean 41.4 66.29 29.42848
Low 13.40 7.40
No. of Samples 17 925

Five-year Rolling Average Graph

     
1/1/201191.021691.0200000percent (%)89.6900000
2/1/201172.301881.6600000percent (%)61.5000000
3/1/201117.241060.1900000percent (%)11.6700000
4/1/201160.911660.3700000percent (%)59.3800000
5/1/201175.541663.4000000percent (%)73.4000000
7/1/201150.40455.2800000percent (%)49.0200000
9/1/201174.77665.4100000percent (%)73.5500000
11/1/201156.48460.5500000percent (%)56.4400000
12/1/201140.95655.6500000percent (%)36.0400000
1/1/201285.35664.3900000percent (%)84.5600000
2/1/2012100.25671.5600000percent (%)100.2300000
3/1/2012118.99880.4000000percent (%)118.7000000
4/1/201295.98883.0000000percent (%)92.4600000
5/1/201275.30386.1400000percent (%)75.3000000
6/1/201251.80387.9500000percent (%)51.8000000
7/1/201293.89289.3700000percent (%)93.8900000
8/1/201234.50378.4100000percent (%)34.5000000
9/1/201227.10363.1000000percent (%)27.1000000
10/1/201217.20349.9700000percent (%)17.2000000
11/1/201267.18548.6100000percent (%)60.6300000
12/1/201233.40345.5500000percent (%)33.4000000
1/1/201340.80336.7000000percent (%)40.8000000
2/1/201342.70338.0600000percent (%)42.7000000
3/1/201368.11544.9000000percent (%)59.0300000
4/1/2013103.90359.3500000percent (%)103.9000000
5/1/201372.70360.2700000percent (%)72.7000000
6/1/201391.20369.9000000percent (%)91.2000000
7/1/201378.60376.2000000percent (%)78.6000000
8/1/201375.90381.7400000percent (%)75.9000000
9/1/201333.90376.0300000percent (%)33.9000000
10/1/201326.90363.2000000percent (%)26.9000000
12/1/201354.00353.8600000percent (%)54.0000000
1/1/201464.80451.1000000percent (%)64.8000000
2/1/201480.30351.9800000percent (%)80.3000000
3/1/201451.10155.4200000percent (%)51.1000000
4/1/201473.55464.7500000percent (%)72.7900000
5/1/201452.60462.7300000percent (%)52.6000000
6/1/201486.20468.0900000percent (%)86.2000000
7/1/201463.80467.9300000percent (%)63.8000000
8/1/201468.50465.9600000percent (%)68.5000000
9/1/20148.70458.8900000percent (%)8.7000000
10/1/201427.90451.2800000percent (%)27.9000000
11/1/201466.70453.6300000percent (%)66.7000000
12/1/201484.90453.4200000percent (%)84.9000000
1/1/201543.70350.0700000percent (%)43.7000000
2/1/201537.00344.8200000percent (%)37.0000000
3/1/201522.30347.0800000percent (%)22.3000000
5/1/201575.60352.7000000percent (%)75.6000000
7/1/201513.40137.0800000percent (%)13.4000000
8/1/201541.60138.2300000percent (%)41.6000000
9/1/201576.00151.6500000percent (%)76.0000000
10/1/201549.50151.2200000percent (%)49.5000000
11/1/201572.60150.6200000percent (%)72.6000000
Target
percent (%)
Threshold
56.00 percent (%)

BOD, Biochemical oxygen demand

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

Five-year Rolling Average Graph

     
1/1/20113.4863.4800000mg/l2.4300000
2/1/20112.4862.9800000mg/l2.4700000
3/1/20112.6562.8700000mg/l2.5900000
4/1/20113.8463.1100000mg/l3.7600000
5/1/20114.3963.3700000mg/l4.2100000
6/1/20113.3663.3700000mg/l3.1500000
7/1/20113.3663.3500000mg/l3.1200000
8/1/20113.3963.5000000mg/l3.1000000
9/1/20112.7463.5100000mg/l2.3800000
10/1/20115.6963.8200000mg/l5.6800000
11/1/20112.7163.5400000mg/l2.5600000
12/1/20112.0163.3200000mg/l1.9600000
1/1/20122.3063.1400000mg/l2.0000000
2/1/20124.6163.3400000mg/l2.5200000
3/1/20124.7063.6700000mg/l4.0500000
4/1/20125.1663.5800000mg/l5.0900000
5/1/20122.8733.6100000mg/l2.8700000
6/1/20122.1533.6300000mg/l2.1500000
7/1/20122.0423.5900000mg/l2.0400000
8/1/20127.7634.1100000mg/l7.7600000
9/1/20122.4233.7300000mg/l2.4200000
10/1/20123.7433.5000000mg/l3.7400000
11/1/20120.6433.1300000mg/l0.6400000
12/1/20120.6432.8700000mg/l0.6400000
1/1/20131.4532.7800000mg/l1.4500000
2/1/20131.0731.6600000mg/l1.0700000
3/1/20130.5031.3400000mg/l0.5000000
4/1/20130.5030.8000000mg/l0.5000000
5/1/20132.4431.1000000mg/l2.4400000
6/1/20132.1231.3500000mg/l2.1200000
7/1/20131.8931.4200000mg/l1.8900000
8/1/20134.1731.9400000mg/l4.1700000
9/1/20131.6832.1300000mg/l1.6800000
10/1/20131.0032.2200000mg/l1.0000000
11/1/20132.4622.2200000mg/l2.4600000
12/1/20130.5631.9600000mg/l0.5600000
1/1/20140.5041.7300000mg/l0.5000000
2/1/20143.0441.5400000mg/l3.0400000
3/1/20140.5931.3600000mg/l0.5900000
4/1/20141.6541.4700000mg/l1.6500000
5/1/20141.2741.2700000mg/l1.2700000
6/1/20140.8941.3200000mg/l0.8900000
7/1/20141.9041.5600000mg/l1.9000000
8/1/20143.5741.6500000mg/l3.5700000
9/1/20142.5141.9700000mg/l2.5100000
10/1/20140.7331.8100000mg/l0.7300000
11/1/20140.5041.6800000mg/l0.5000000
12/1/20142.6741.9800000mg/l2.6700000
1/1/20150.9631.8200000mg/l0.9600000
2/1/20150.8331.3700000mg/l0.8300000
3/1/20150.7531.0700000mg/l0.7500000
4/1/20152.5021.3700000mg/l2.5000000
5/1/20155.2132.1500000mg/l5.2100000
6/1/20151.4331.9500000mg/l1.4300000
7/1/20151.1321.9800000mg/l1.1300000
8/1/20151.8722.1500000mg/l1.8700000
9/1/20150.7322.1500000mg/l0.7300000
10/1/20154.5312.4800000mg/l4.5300000

Color

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

Five-year Rolling Average Graph

     

Enterococcus Group Bacteria

Units: cfu/100ml Year
2015
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

     
4/1/2015340.002340.0000000cfu/100ml340.0000000
5/1/201590.002215.0000000cfu/100ml90.0000000
6/1/201590.002173.3300000cfu/100ml90.0000000
7/1/2015110.002157.5000000cfu/100ml110.0000000
8/1/201550.002136.0000000cfu/100ml50.0000000
9/1/201580.002126.6700000cfu/100ml80.0000000
10/1/2015180.001100.0000000cfu/100ml180.0000000
11/1/201560.00195.0000000cfu/100ml60.0000000
Target
cfu/100ml
Threshold
cfu/100ml

Nitrogen, Ammonia + Ammonium as N

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

Five-year Rolling Average Graph

     
1/1/2011267.506267.5000000ug/l202.7500000
2/1/201188.506178.0000000ug/l87.1300000
3/1/201180.006145.3300000ug/l79.8400000
4/1/201156.506123.1300000ug/l55.8600000
5/1/201145.506107.6000000ug/l43.7500000
6/1/2011104.506107.0800000ug/l71.1900000
7/1/201123.50666.4200000ug/l17.6600000
8/1/20118.00653.0000000ug/l8.0000000
9/1/201172.00651.6700000ug/l32.9800000
10/1/201122.00645.9200000ug/l21.9800000
11/1/201112.50640.4200000ug/l12.2500000
12/1/201173.00635.1700000ug/l52.2300000
1/1/2012158.00657.5800000ug/l128.4500000
2/1/201282.50670.0000000ug/l72.9700000
3/1/201269.50669.5800000ug/l65.4100000
4/1/201226.00670.2500000ug/l24.0000000
5/1/201240.00374.8300000ug/l40.0000000
6/1/201216.00365.3300000ug/l16.0000000
7/1/201280.00252.3300000ug/l80.0000000
8/1/201216.00341.2500000ug/l16.0000000
9/1/201216.00332.3300000ug/l16.0000000
10/1/201254.00337.0000000ug/l54.0000000
11/1/2012137.00353.1700000ug/l137.0000000
12/1/2012221.00387.3300000ug/l221.0000000
1/1/2013221.003110.8300000ug/l221.0000000
2/1/2013232.003146.8300000ug/l232.0000000
3/1/2013270.003189.1700000ug/l270.0000000
4/1/20138.003181.5000000ug/l8.0000000
5/1/201316.003161.3300000ug/l16.0000000
6/1/201328.003129.1700000ug/l28.0000000
7/1/201316.00395.0000000ug/l16.0000000
8/1/201316.00359.0000000ug/l16.0000000
9/1/20138.00315.3300000ug/l8.0000000
10/1/2013129.00335.5000000ug/l129.0000000
11/1/201352.00241.5000000ug/l52.0000000
12/1/2013157.00363.0000000ug/l157.0000000
1/1/201439.21566.8700000ug/l12.3100000
2/1/201481.62577.8100000ug/l25.6200000
3/1/201484.82590.6100000ug/l26.6300000
4/1/201417.26471.9900000ug/l4.0900000
5/1/201439.76469.9500000ug/l9.4200000
6/1/20146.40544.8500000ug/l2.0100000
7/1/20146.40539.3800000ug/l2.0100000
8/1/20146.40526.8400000ug/l2.0100000
9/1/201488.02527.3700000ug/l27.6300000
10/1/2014160.84551.3000000ug/l50.4900000
11/1/2014193.65576.9500000ug/l60.7900000
12/1/20146.40576.9500000ug/l2.0100000
1/1/201558.00385.5500000ug/l58.0000000
2/1/2015120.003104.4900000ug/l120.0000000
3/1/2015169.003117.9800000ug/l169.0000000
4/1/20158.00292.5100000ug/l8.0000000
5/1/201599.00376.7300000ug/l99.0000000
6/1/201516.00378.3300000ug/l16.0000000
7/1/2015116.00288.0000000ug/l116.0000000
8/1/20158.00269.3300000ug/l8.0000000
9/1/201547.00249.0000000ug/l47.0000000
10/1/2015140.00171.0000000ug/l140.0000000
11/1/2015196.00187.1700000ug/l196.0000000

Nitrogen, Kjeldahl

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

Five-year Rolling Average Graph

     
1/1/20111535.45111535.4500000ug/l1487.6700000
2/1/20111253.55111394.5000000ug/l1051.6600000
3/1/20111063.55111284.1800000ug/l987.3400000
4/1/20111141.55111248.5300000ug/l1093.8200000
5/1/20111158.36111230.4900000ug/l1114.4600000
6/1/20111311.7581244.0400000ug/l1213.0800000
7/1/20111409.00111222.9600000ug/l1303.8600000
8/1/20111105.73111198.3200000ug/l1006.6200000
9/1/20111183.09111218.2500000ug/l1131.3300000
10/1/20111350.91111253.1400000ug/l1300.1200000
11/1/2011897.3391209.6400000ug/l825.9600000
12/1/2011975.18111153.5400000ug/l921.6300000
1/1/20121243.0061125.8700000ug/l1095.6600000
2/1/20121371.6381170.1900000ug/l1198.6100000
3/1/20121547.1381230.8600000ug/l1295.4200000
4/1/20121553.7581264.6700000ug/l1427.4100000
5/1/2012990.4051280.1800000ug/l959.7700000
6/1/2012862.4051261.3900000ug/l841.5900000
7/1/2012832.0021192.8900000ug/l832.0000000
8/1/20122014.0051299.9500000ug/l1917.6700000
9/1/20121128.8881230.2400000ug/l1037.3700000
10/1/20121325.0081192.1100000ug/l1318.0900000
11/1/2012821.0081163.8800000ug/l806.5500000
12/1/2012737.6051143.0800000ug/l733.8400000
1/1/2013911.1381156.2700000ug/l905.4600000
2/1/20131061.638997.5400000ug/l1026.8200000
3/1/20131212.7581011.5200000ug/l1147.3400000
4/1/2013987.638955.2900000ug/l973.0400000
5/1/2013991.888983.7700000ug/l971.3500000
6/1/20131016.1381030.1900000ug/l1002.2000000
7/1/20131702.5081162.0900000ug/l1674.7400000
8/1/20131750.0081276.8200000ug/l1701.4800000
9/1/20131220.0081278.0200000ug/l1216.9000000
10/1/20131113.5081299.0000000ug/l1099.7200000
11/1/20131102.5771317.4500000ug/l1082.3300000
12/1/20131123.7581335.3900000ug/l1085.6500000
1/1/20141052.2291227.0100000ug/l1004.3400000
2/1/20141012.0091104.0100000ug/l899.4200000
3/1/2014774.6791029.7900000ug/l710.3100000
4/1/2014859.119987.3900000ug/l849.5700000
5/1/20141435.5691042.8900000ug/l1398.0300000
6/1/2014874.2291001.3000000ug/l827.7800000
7/1/20141035.336998.4800000ug/l915.5900000
8/1/20141134.2291018.8500000ug/l1065.7400000
9/1/20141043.1191063.5900000ug/l1017.5200000
10/1/20141446.6791161.5200000ug/l1399.6600000
11/1/20141081.7891102.5600000ug/l1061.5800000
12/1/20141012.6791125.6300000ug/l948.4400000
1/1/2015775.6381082.3500000ug/l756.2500000
2/1/2015720.1381013.3300000ug/l718.6900000
3/1/20151076.6381018.9200000ug/l1064.1300000
4/1/20151008.577945.9000000ug/l1000.1500000
5/1/20151353.758991.2300000ug/l1282.4000000
6/1/2015838.506962.2000000ug/l832.6900000
7/1/20151156.6731025.7100000ug/l1144.7100000
8/1/20151382.8671136.1600000ug/l1359.3600000
9/1/20151391.4371188.6300000ug/l1344.0700000
10/1/20151960.0061347.2000000ug/l1733.8300000
11/1/2015909.0021273.0800000ug/l907.6800000
12/1/20151244.0051340.6600000ug/l1191.4000000

Nitrogen, Nitrite + Nitrate as N

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

Five-year Rolling Average Graph

     
1/1/201117.78917.7800000ug/l12.7800000
2/1/201146.00931.8900000ug/l20.9000000
3/1/201161.14741.6400000ug/l32.7000000
4/1/201127.091138.0000000ug/l16.0300000
5/1/201180.00746.4000000ug/l60.9100000
6/1/201155.00647.8400000ug/l35.5100000
7/1/201113.33947.0900000ug/l10.5400000
8/1/20117.551140.6900000ug/l7.1100000
9/1/201110.33932.2200000ug/l8.1800000
10/1/20117.89929.0200000ug/l7.3900000
11/1/201114.33918.0700000ug/l11.3800000
12/1/201134.731114.6900000ug/l21.3700000
1/1/201243.00619.6400000ug/l18.1100000
2/1/201237.00824.5500000ug/l16.0300000
3/1/201233.50628.4100000ug/l32.8600000
4/1/201211.50629.0100000ug/l8.7200000
5/1/20127.00327.7900000ug/l7.0000000
6/1/201213.00324.1700000ug/l13.0000000
7/1/201212.00219.0000000ug/l12.0000000
8/1/20124.60513.6000000ug/l4.5700000
9/1/201217.63810.9600000ug/l14.0200000
10/1/201218.88812.1900000ug/l18.0200000
11/1/201216.63813.7900000ug/l14.0400000
12/1/201218.80514.7600000ug/l18.3600000
1/1/201326.50617.1700000ug/l19.4300000
2/1/201324.38820.4700000ug/l19.9600000
3/1/201324.88821.6800000ug/l19.8400000
4/1/201317.63821.4700000ug/l16.0400000
5/1/201337.00624.8700000ug/l16.7300000
6/1/201339.50628.3200000ug/l35.4100000
7/1/201326.88828.3800000ug/l20.4800000
8/1/201338.00630.6500000ug/l21.9800000
9/1/201321.00830.0000000ug/l17.3600000
10/1/201351.13835.5900000ug/l23.5600000
11/1/20138.40530.8200000ug/l7.9200000
12/1/201338.88830.7200000ug/l26.5700000
1/1/201422.00929.9000000ug/l21.7800000
2/1/201437.33929.7900000ug/l36.3600000
3/1/201422.78930.0900000ug/l15.2900000
4/1/201421.38825.1300000ug/l13.9400000
5/1/201427.89928.3800000ug/l16.6800000
6/1/201412.14723.9200000ug/l8.4700000
7/1/20144.00320.9200000ug/l4.0000000
8/1/201411.29716.5800000ug/l11.1900000
9/1/201432.00618.1200000ug/l21.1700000
10/1/201424.00718.5500000ug/l23.0300000
11/1/201423.71717.8600000ug/l23.6700000
12/1/201440.88822.6500000ug/l26.7300000
1/1/201521.25825.5200000ug/l18.6500000
2/1/201553.50832.5600000ug/l33.9100000
3/1/201533.25832.7700000ug/l28.7600000
4/1/20154.60529.5300000ug/l4.5700000
5/1/20154.00426.2500000ug/l4.0000000
6/1/20154.00620.1000000ug/l4.0000000
7/1/201510.00318.2300000ug/l8.7800000
8/1/201515.00711.8100000ug/l9.9600000
9/1/201525.57710.5300000ug/l18.7100000
10/1/2015268.50454.5100000ug/l123.3100000
11/1/201551.50262.4300000ug/l33.0500000
12/1/20159.33363.3200000ug/l8.3200000

Oysters

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

Five-year Rolling Average Graph

     
1/1/200775.63275.6300000%75.6300000
1/1/200876.25276.2500000%76.2500000
1/1/200967.84267.8400000%67.8400000
1/1/201071.98271.9800000%71.9800000
1/1/201185.01285.0100000%85.0100000
1/1/201365.76365.7600000%65.7600000
1/1/201485.16285.1600000%85.1600000
1/1/201584.08284.0800000%84.0800000

pH

Units: None Year
2015
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

     
1/1/20117.15117.1500000None7.1300000
2/1/20117.64127.4000000None7.6400000
3/1/20117.7297.5000000None7.7200000
4/1/20117.64117.5400000None7.6300000
5/1/20117.80117.5900000None7.8000000
6/1/20117.5427.5800000None7.5400000
7/1/20117.6177.6600000None7.6100000
8/1/20117.8857.7000000None7.8600000
9/1/20117.0487.5900000None6.9500000
10/1/20117.4057.5500000None7.4000000
11/1/20118.1257.6000000None8.1200000
12/1/20117.53117.6000000None7.5200000
1/1/20127.4467.5700000None7.4200000
2/1/20127.5987.5200000None7.5800000
3/1/20127.7997.6500000None7.7700000
4/1/20127.9397.7300000None7.9100000
5/1/20127.5157.6300000None7.5100000
6/1/20127.6157.6500000None7.6100000
7/1/20127.7527.7000000None7.7500000
8/1/20127.3657.6600000None7.3600000
9/1/20127.6487.6300000None7.6300000
10/1/20127.2987.5300000None7.2800000
11/1/20127.26107.4900000None7.1900000
12/1/20127.3057.4300000None7.3000000
1/1/20137.5687.4000000None7.5600000
2/1/20137.6287.4500000None7.6100000
3/1/20137.6997.4500000None7.6900000
4/1/20137.7987.5400000None7.7900000
5/1/20137.7887.6200000None7.7800000
6/1/20137.6487.6800000None7.6400000
7/1/20136.9597.5800000None6.9400000
8/1/20137.5787.5700000None7.5600000
9/1/20137.1287.4800000None7.1200000
10/1/20137.1487.3700000None7.1400000
11/1/20137.4857.3200000None7.4800000
12/1/20137.3287.2600000None7.3200000
1/1/20147.4297.3400000None7.4100000
2/1/20147.3787.3100000None7.3600000
3/1/20147.5967.3900000None7.5800000
4/1/20147.4597.4400000None7.4500000
5/1/20147.3887.4200000None7.3800000
6/1/20147.6697.4800000None7.6600000
7/1/20147.7767.5400000None7.7600000
8/1/20147.6887.5900000None7.6600000
9/1/20147.7097.6100000None7.6900000
10/1/20147.1487.5600000None7.1400000
11/1/20147.5087.5800000None7.5000000
12/1/20147.5597.5600000None7.5400000
1/1/20157.2287.4700000None7.2100000
2/1/20157.4187.4200000None7.4100000
3/1/20157.3187.3600000None7.3100000
4/1/20157.6657.4400000None7.6600000
5/1/20157.7887.4900000None7.7800000
6/1/20157.8757.5400000None7.8700000
7/1/20157.5627.6000000None7.5400000
8/1/20157.2867.5800000None7.2700000
9/1/20157.4267.6000000None7.4100000
10/1/20157.2987.5300000None7.2800000
11/1/20157.6337.5100000None7.6300000
12/1/20157.4467.4400000None7.4300000

Salinity

Units: PSS Year
2015
Historical
period of record
High 36.8 40.5
Mean 17.75 17.24 10.67633
Low 2.55 0.00
No. of Samples 77 1,614

Five-year Rolling Average Graph

     
1/1/201120.171120.1700000PSS12.5900000
2/1/201120.791320.4800000PSS13.8700000
3/1/201121.351020.7700000PSS12.5900000
4/1/201118.931120.3100000PSS12.0600000
5/1/201124.911121.2300000PSS14.9600000
6/1/201136.40223.7600000PSS36.4000000
7/1/201119.88923.7100000PSS17.3400000
8/1/201118.50523.3300000PSS17.7100000
9/1/201124.351123.8300000PSS22.8300000
10/1/201119.46523.9200000PSS18.6200000
11/1/201129.73724.7200000PSS29.7000000
12/1/201111.311120.5400000PSS6.0000000
1/1/201216.02619.9000000PSS6.2700000
2/1/201219.44820.0500000PSS9.1900000
3/1/201224.221020.0300000PSS12.5100000
4/1/201225.041020.9600000PSS12.8100000
5/1/201237.27522.2200000PSS37.2600000
6/1/201236.37526.3900000PSS36.2100000
7/1/201231.23428.9300000PSS31.2200000
8/1/201210.95527.5100000PSS8.9100000
9/1/201219.60826.7400000PSS18.1900000
10/1/201218.85825.7100000PSS18.0300000
11/1/201227.491224.0800000PSS27.2000000
12/1/201226.93522.5100000PSS26.9300000
1/1/201326.09821.6500000PSS25.9800000
2/1/201327.96824.4900000PSS27.6400000
3/1/201331.671026.5000000PSS31.5600000
4/1/201324.42827.4300000PSS24.2200000
5/1/201321.63826.4500000PSS18.8300000
6/1/201317.72824.9200000PSS16.8300000
7/1/20137.271021.7800000PSS5.2800000
8/1/20139.97818.7800000PSS8.7200000
9/1/20132.37813.9000000PSS2.0000000
10/1/20136.19810.8600000PSS5.3100000
11/1/201322.22510.9600000PSS22.1800000
12/1/201323.05811.8500000PSS22.7800000
1/1/201424.71914.7500000PSS24.5500000
2/1/201419.40816.3200000PSS16.9500000
3/1/201422.53619.6800000PSS21.6000000
4/1/201420.74922.1100000PSS19.9900000
5/1/201418.87921.5500000PSS17.4300000
6/1/201425.41921.9400000PSS25.3500000
7/1/201428.15722.5200000PSS28.1100000
8/1/201419.91922.6000000PSS18.3400000
9/1/201422.901122.6600000PSS20.8300000
10/1/201410.49920.9600000PSS10.1100000
11/1/201424.32921.8600000PSS24.3100000
12/1/201420.42921.0300000PSS18.7700000
1/1/201522.52820.0900000PSS22.5100000
2/1/201522.37820.5000000PSS20.9400000
3/1/201522.55820.4500000PSS21.5200000
4/1/201529.08523.5400000PSS28.6300000
5/1/201531.80824.7900000PSS31.6700000
6/1/201529.06726.2300000PSS28.8400000
7/1/201523.20226.3400000PSS21.9800000
8/1/20157.85623.9200000PSS6.1700000
9/1/201510.28821.8800000PSS7.6600000
10/1/201514.35819.4200000PSS10.1500000
11/1/201518.80217.2600000PSS17.5200000
12/1/201524.44716.4900000PSS23.5300000

Specific conductance

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

Five-year Rolling Average Graph

     
1/1/201123099.00623099.0000000umho11847.9800000
2/1/201124010.50623554.7500000umho12086.6400000
3/1/20113285.00316798.1700000umho3285.0000000
4/1/201125513.00618976.8800000umho12583.3000000
5/1/201125532.50620288.0000000umho12625.4300000
12/1/201122438.50622438.5000000umho10358.4300000
1/1/201224833.50623636.0000000umho10811.5500000
2/1/201225542.00624271.3300000umho10909.3900000
3/1/201226900.00624928.5000000umho10991.3300000
4/1/201227138.00625370.4000000umho11035.3200000
5/1/201255192.00330340.6700000umho55192.0000000
6/1/201251271.00335146.0800000umho51271.0000000
8/1/201225884.00337277.0000000umho25884.0000000
9/1/201243857.00340668.4000000umho43857.0000000
10/1/201222996.00339840.0000000umho22996.0000000
11/1/201239418.00336685.2000000umho39418.0000000
12/1/201241581.00334747.2000000umho41581.0000000
1/1/201336424.00335026.6700000umho36424.0000000
2/1/201336101.00336729.5000000umho36101.0000000
3/1/201343393.00336652.1700000umho43393.0000000
4/1/201341278.00339699.1700000umho41278.0000000
5/1/201344261.00340506.3300000umho44261.0000000
6/1/201339578.00340172.5000000umho39578.0000000
7/1/20134476.00334847.8300000umho4476.0000000
8/1/201325406.00333065.3300000umho25406.0000000
9/1/20131804.00326133.8300000umho1804.0000000
10/1/201318028.00322258.8300000umho18028.0000000
12/1/201330506.00316044.0000000umho30506.0000000
1/1/201434231.00421995.0000000umho34231.0000000
2/1/2014386.00316991.0000000umho386.0000000
3/1/201439355.00124501.2000000umho39355.0000000
4/1/201438099.00428515.4000000umho38098.9800000
5/1/201441760.00430722.8300000umho41760.0000000
6/1/201441725.00432592.6700000umho41725.0000000
7/1/201442975.00434050.0000000umho42975.0000000
8/1/201437984.00440316.3300000umho37984.0000000
9/1/201442111.00440775.6700000umho42111.0000000
10/1/201416965.00437253.3300000umho16965.0000000
11/1/201439404.00436860.6700000umho39404.0000000
12/1/201444567.00437334.3300000umho44567.0000000
1/1/201534636.00335944.5000000umho34636.0000000
2/1/201537211.00335815.6700000umho37211.0000000
3/1/201542171.00335825.6700000umho42171.0000000
5/1/201547534.00341223.8000000umho47534.0000000
10/1/201537017.00142275.5000000umho37017.0000000
11/1/201540062.00138539.5000000umho40062.0000000

Temperature, water

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

Five-year Rolling Average Graph

     
1/1/201163.45763.4500000deg F63.4100000
2/1/201172.43967.9400000deg F72.4100000
3/1/201170.60668.8300000deg F70.5800000
4/1/201179.46771.4900000deg F79.3400000
5/1/201180.40673.2700000deg F80.3900000
6/1/201181.32174.6100000deg F81.3200000
7/1/201185.36778.2600000deg F85.3200000
8/1/201186.60380.6200000deg F86.5100000
9/1/201184.20982.8900000deg F84.1100000
10/1/201178.26382.6900000deg F78.2500000
11/1/201171.42681.1900000deg F71.3300000
12/1/201171.49779.5600000deg F71.4600000
1/1/201262.74475.7900000deg F62.7200000
2/1/201272.47573.4300000deg F72.4600000
3/1/201272.44771.4700000deg F72.3700000
4/1/201278.17771.4600000deg F78.1400000
5/1/201282.90373.3700000deg F82.8500000
6/1/201281.52375.0400000deg F81.5200000
7/1/201285.15478.7800000deg F85.1300000
8/1/201283.83380.6700000deg F83.8200000
9/1/201285.57582.8600000deg F85.5600000
10/1/201282.72583.6200000deg F82.7000000
11/1/201271.11981.6500000deg F71.1000000
12/1/201272.01380.0700000deg F71.9700000
1/1/201370.70577.6600000deg F70.6700000
2/1/201366.31574.7400000deg F66.1000000
3/1/201365.23771.3500000deg F64.9400000
4/1/201374.59469.9900000deg F74.1900000
5/1/201377.38571.0400000deg F77.0300000
6/1/201385.66473.3100000deg F85.5800000
7/1/201382.74775.3200000deg F82.7100000
8/1/201385.03578.4400000deg F85.0000000
9/1/201379.89580.8800000deg F79.8900000
10/1/201381.26581.9900000deg F81.2500000
11/1/201372.86381.2400000deg F72.8200000
12/1/201366.55578.0600000deg F66.5200000
1/1/201466.78675.4000000deg F66.7600000
2/1/201471.61573.1600000deg F71.4800000
3/1/201471.02471.6800000deg F71.0000000
4/1/201478.62671.2400000deg F78.6200000
5/1/201479.37672.3300000deg F79.1400000
6/1/201487.19575.7700000deg F87.0900000
7/1/201488.30579.3500000deg F88.2700000
8/1/201487.48682.0000000deg F87.4000000
9/1/201484.70884.2800000deg F84.6800000
10/1/201478.70684.2900000deg F78.6200000
11/1/201466.40682.1300000deg F66.3900000
12/1/201465.62678.5300000deg F65.6200000
1/1/201572.08575.8300000deg F72.0600000
2/1/201567.93572.5700000deg F67.8800000
3/1/201575.16570.9800000deg F75.0500000
4/1/201578.38370.9300000deg F78.3700000
5/1/201580.91573.3500000deg F80.6900000
6/1/201585.19676.6100000deg F85.0900000
7/1/201585.39278.8300000deg F85.3800000
8/1/201583.16481.3700000deg F82.9400000
9/1/201584.07682.8500000deg F83.9800000
10/1/201580.03683.1300000deg F79.9700000
11/1/201578.50282.7200000deg F78.4100000
12/1/201573.69580.8100000deg F73.6800000

Turbidity

Units: NTU Year
2015
Historical
period of record
High 13.0 402.0
Mean 2.93 3.27 15.72389
Low 1.20 0.34
No. of Samples 75 1,506

Five-year Rolling Average Graph

     
1/1/201120.901120.9000000NTU6.5600000
2/1/20113.711212.3100000NTU3.5200000
3/1/20113.88129.5000000NTU3.6800000
4/1/20115.40118.4700000NTU5.2100000
5/1/20115.80117.9400000NTU5.5700000
6/1/20117.1387.8000000NTU6.3000000
7/1/20115.03135.1600000NTU3.7800000
8/1/20115.48115.4500000NTU4.9900000
9/1/20113.54145.4000000NTU2.9500000
10/1/20119.49116.0800000NTU7.2700000
11/1/20113.49115.6900000NTU3.1100000
12/1/20112.96115.0000000NTU2.7200000
1/1/20125.1065.0100000NTU3.7100000
2/1/20127.3385.3200000NTU5.9800000
3/1/201213.99107.0600000NTU8.3900000
4/1/20126.5296.5700000NTU5.7800000
5/1/20124.3656.7100000NTU4.3600000
6/1/20125.3657.1100000NTU5.2000000
7/1/20122.6026.6900000NTU2.6000000
8/1/20127.6456.7500000NTU5.9900000
9/1/20126.4485.4900000NTU4.8300000
10/1/20124.4985.1500000NTU3.7500000
11/1/20122.1384.7800000NTU2.1000000
12/1/20121.3254.1000000NTU1.2700000
1/1/20135.8484.6400000NTU5.2600000
2/1/20134.8384.1800000NTU4.4700000
3/1/20135.2383.9700000NTU4.0700000
4/1/20133.2083.7600000NTU3.1200000
5/1/20134.8684.2100000NTU4.4100000
6/1/20132.9884.4900000NTU2.7700000
7/1/20132.6383.9600000NTU2.4800000
8/1/20135.0683.9900000NTU3.7900000
9/1/20132.7583.5800000NTU2.5100000
10/1/20132.1383.4000000NTU2.0800000
11/1/20135.9673.5900000NTU5.1800000
12/1/20132.6183.5200000NTU2.5700000
1/1/20142.0393.4200000NTU1.9900000
2/1/20143.3693.1400000NTU3.2400000
3/1/20143.1393.2000000NTU3.0000000
4/1/20142.8793.3300000NTU2.6600000
5/1/20143.8892.9800000NTU3.7400000
6/1/20143.7193.1600000NTU3.6700000
7/1/20147.2064.0300000NTU7.2000000
8/1/20145.4894.3800000NTU4.9000000
9/1/20143.7194.4800000NTU3.2900000
10/1/20144.7894.7900000NTU2.6200000
11/1/20143.7094.7600000NTU2.5500000
12/1/20142.7494.6000000NTU2.6000000
1/1/20152.4983.8200000NTU2.4000000
2/1/20151.6683.1800000NTU1.6200000
3/1/20154.1683.2600000NTU3.2900000
4/1/20154.0073.1300000NTU3.9400000
5/1/20154.6683.2900000NTU4.6500000
6/1/20153.3563.3900000NTU3.3400000
7/1/20153.6333.5800000NTU2.8700000
8/1/20152.6773.7500000NTU2.4000000
9/1/20152.5673.4800000NTU2.3600000
10/1/20155.6763.7600000NTU3.7000000
11/1/20152.0023.3100000NTU1.9900000
12/1/20153.8053.3900000NTU3.7700000
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 »

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Most Recent Sarasota County Oyster Monitoring Program Data
Icon Site ID Year Dead Live Total % Live
1 FRK1 2015 43 192 235 81
2 FRK1A 2013 96 76 172 44
3 FRK2 2015 56 331 387 85

Impervious Features

Forked Creek is located within the Lemon Bay Watershed. View details about the Lemon 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 Forked Creek Basin is covered by impervious surfaces.

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Land Use / Land Cover

Forked Creek is located within the Lemon Bay Watershed. View details about the Lemon 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.