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Phillippi Creek Condition Report for 2014

View 2013 Report View 2011 Report

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: 35,771 acres
  • Location: North Sarasota County, south Manatee County
  • Discharges into: Sarasota Bay

Phillippi Creek Basin consists primarily of residential properties west of Interstate 75, with commercial properties situated along the major arterial transportation routes. The area east of Interstate 75 is primarily rural with scattered low density residential area. Much of the area east of Interstate 75 is in agriculture use. Phillippi Creek drains from the north and northeast to south and southwest. The major conveyance system in the watershed consists of approximately 47 miles of open channels, most of which have been dredged in the past. The soils in the Phillippi Creek Watershed are primarily Myakka with the upland soils containing poorly to very poorly drained sands and the stream-side soils consisting of sands that are better drained. For basin details see: Phillippi Creek Flood Study Update (2001)

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:
  • 1937
  • 1941
  • 1966
  • 1971
  • 1971A
Pass

Chlorophyll a

Score: Pass
Units: mg/l Year
2014
Historical
period of record
High 0.0746 0.115
Mean 0.0084 0.0039 0.01053072
Low 0.0012 0.00
No. of Samples 37 1,089

Five-year Trend Graph

      
1/1/20106.97100.0069700mg/l0.0056300
2/1/20107.70100.0073400mg/l0.0049700
3/1/20106.47120.0070500mg/l0.0055400
4/1/20103.3780.0061300mg/l0.0031300
5/1/20102.69100.0054400mg/l0.0025400
6/1/20104.65100.0053100mg/l0.0036700
7/1/201014.5020.0065600mg/l0.0144200
8/1/201010.71100.0070700mg/l0.0062100
9/1/20104.87100.0068000mg/l0.0037100
10/1/20102.49100.0066500mg/l0.0020200
11/1/20103.74100.0068300mg/l0.0021300
12/1/201010.42100.0077900mg/l0.0024900
1/1/20117.77120.0066700mg/l0.0038400
2/1/20114.44100.0056200mg/l0.0028600
3/1/201114.8380.0072800mg/l0.0096100
4/1/20114.09100.0075500mg/l0.0035300
5/1/20117.88100.0082400mg/l0.0044000
6/1/20119.21100.0080400mg/l0.0061900
7/1/20115.32100.0076300mg/l0.0034000
8/1/20116.14120.0079100mg/l0.0036300
9/1/20114.8480.0062500mg/l0.0036000
10/1/20113.63120.0061700mg/l0.0032600
11/1/20115.0880.0057000mg/l0.0030600
12/1/20113.36100.0047300mg/l0.0026300
1/1/20122.08100.0041900mg/l0.0018400
2/1/20127.53100.0044200mg/l0.0038700
3/1/20122.16100.0039700mg/l0.0018900
4/1/20123.7590.0039900mg/l0.0032400
5/1/20122.7120.0036000mg/l0.0026200
6/1/20123.7540.0036600mg/l0.0033800
7/1/201210.3940.0050500mg/l0.0101200
8/1/20125.8730.0047700mg/l0.0058000
9/1/20124.5540.0051700mg/l0.0043200
10/1/20126.0640.0055600mg/l0.0050000
11/1/20123.9940.0057700mg/l0.0036800
12/1/20124.4030.0058800mg/l0.0043700
1/1/20137.2130.0053500mg/l0.0059200
2/1/20135.6150.0053000mg/l0.0026800
3/1/20133.9550.0052000mg/l0.0034000
4/1/20135.1450.0050500mg/l0.0048600
5/1/20135.5850.0053200mg/l0.0046600
6/1/201310.0840.0062600mg/l0.0094800
7/1/201322.8360.0088700mg/l0.0207200
8/1/20136.3540.0089900mg/l0.0053700
9/1/201316.3560.0110600mg/l0.0138200
10/1/201311.5040.0121200mg/l0.0109200
11/1/20134.4960.0119300mg/l0.0042700
12/1/20136.3760.0113200mg/l0.0045900
1/1/201414.2440.0098800mg/l0.0100700
2/1/201415.1040.0113400mg/l0.0125700
3/1/20143.7120.0092400mg/l0.0034100
5/1/201410.2520.0099300mg/l0.0102200
6/1/201417.0560.0120700mg/l0.0133400
7/1/201411.5130.0115200mg/l0.0109100
8/1/201411.3450.0107700mg/l0.0072800
9/1/201420.2250.0140700mg/l0.0084600
10/1/20147.0930.0129100mg/l0.0053300
11/1/20144.1630.0119000mg/l0.0037900
Target
mg/l
Threshold
0.02 mg/l
Pass

Nitrogen, Total

Score: Pass
Units: mg/l Year
2014
Historical
period of record
High 1.832 19.23
Mean 1.1533 1.1878 1.58872131
Low 0.729 0.144
No. of Samples 31 1,531

Five-year Trend Graph

      
1/1/20101460.6791.4606700mg/l1.4066200
2/1/20101534.8991.4977800mg/l1.4466200
3/1/20101164.90101.3868200mg/l1.0560200
4/1/20101074.0081.3086200mg/l1.0496200
5/1/2010893.8991.2256700mg/l0.8738300
6/1/20101028.3391.1927800mg/l1.0103000
7/1/20101440.0011.1893400mg/l1.4400000
8/1/20101267.4491.1447600mg/l1.2062800
9/1/20101504.0091.2012800mg/l1.4668000
10/1/2010950.4491.1806800mg/l0.9188100
11/1/20101050.6791.2068100mg/l1.0069500
12/1/20101304.8991.2529100mg/l1.1977500
1/1/2011889.20101.1611100mg/l0.8377000
2/1/2011960.7891.1100000mg/l0.8723700
3/1/20112406.6381.2604400mg/l2.3426200
4/1/20111349.8991.3270100mg/l1.1921000
5/1/20111160.2291.3452700mg/l1.1085800
6/1/20111046.3391.3021800mg/l1.0425800
7/1/20111109.0091.3388100mg/l1.0095300
8/1/20111125.80101.3663100mg/l1.0805600
9/1/20111500.6381.2153100mg/l1.4353800
10/1/20111275.70101.2029500mg/l1.2368700
11/1/20111000.7581.1763700mg/l0.9610100
12/1/2011911.6791.1539300mg/l0.8705600
1/1/2012696.1191.0851100mg/l0.6824900
2/1/2012698.0091.0138100mg/l0.6844300
3/1/2012716.4490.8831100mg/l0.7068100
4/1/2012660.6380.7806000mg/l0.6437200
5/1/2012787.5020.7450600mg/l0.7871800
6/1/2012999.0030.7596100mg/l0.9939900
7/1/20121269.0030.8551000mg/l1.2685000
8/1/20121070.0020.9171000mg/l1.0643300
9/1/20121207.3330.9989100mg/l1.2039400
10/1/20121137.0031.0783100mg/l1.1363100
11/1/20121009.0031.1152200mg/l1.0038900
12/1/2012893.0021.0975600mg/l0.8917600
1/1/2013843.0021.0265600mg/l0.8316300
2/1/2013775.6730.9775000mg/l0.7733700
3/1/2013743.0030.9001100mg/l0.7351700
4/1/2013828.0030.8486100mg/l0.8246200
5/1/2013957.0030.8399500mg/l0.9568900
6/1/20131171.3330.8863300mg/l1.1455300
7/1/20131601.0041.0126700mg/l1.5967400
8/1/20131397.0031.1162200mg/l1.3967100
9/1/20131434.5041.2314700mg/l1.4273600
10/1/20131323.3331.3140300mg/l1.2568900
11/1/20131231.2541.3597400mg/l1.2274100
12/1/20131331.2541.3863900mg/l1.1644400
1/1/2014814.3331.2552800mg/l0.8141300
2/1/20141025.0031.1932800mg/l1.0193600
3/1/2014808.5021.0889400mg/l0.8045800
5/1/20141280.0011.0518200mg/l1.2800000
6/1/20141157.0051.0169700mg/l1.1515600
7/1/20141487.6731.1516300mg/l1.4706500
8/1/20141259.2541.1984800mg/l1.2464100
9/1/20141255.5041.2878800mg/l1.2144200
10/1/20141487.0031.3210700mg/l1.4704800
11/1/20141221.3331.3112900mg/l1.1782600
Pass

Phosphorus, Total

Score: Pass
Units: mg/l Year
2014
Historical
period of record
High 0.932 7.36
Mean 0.3609 0.4424 0.45316551
Low 0.173 0.047
No. of Samples 31 1,515

Five-year Trend Graph

      
1/1/2010362.3390.3623300mg/l0.3361900
2/1/2010429.0090.3956700mg/l0.3943200
3/1/2010405.7890.3990400mg/l0.3748800
4/1/2010602.7580.4499700mg/l0.5231600
5/1/2010670.1190.4939900mg/l0.5449600
6/1/2010818.2290.5480300mg/l0.7287300
7/1/2010410.0010.5559800mg/l0.4100000
8/1/2010517.6790.5707600mg/l0.5117500
9/1/2010597.6790.6027400mg/l0.5665400
10/1/2010413.5690.5712100mg/l0.3692800
11/1/2010434.7580.5319800mg/l0.4088800
12/1/2010448.2580.4703200mg/l0.4116700
1/1/2011423.30100.4725300mg/l0.3525200
2/1/2011417.3880.4558200mg/l0.3929300
3/1/2011988.1380.5209000mg/l0.9147600
4/1/2011491.4490.5338800mg/l0.4476200
5/1/2011544.8990.5522300mg/l0.4996400
6/1/2011885.3390.6250800mg/l0.8131300
7/1/2011617.3390.6574200mg/l0.5664600
8/1/2011549.60100.6794500mg/l0.5115800
9/1/2011626.6380.6192000mg/l0.6102200
10/1/2011478.80100.6171000mg/l0.4343900
11/1/2011451.7580.6015700mg/l0.3915900
12/1/2011384.5690.5181100mg/l0.3234600
1/1/2012430.5080.4869700mg/l0.3695100
2/1/2012401.5690.4623000mg/l0.3536400
3/1/2012547.2290.4490700mg/l0.4840200
4/1/2012660.2580.4793100mg/l0.5687300
5/1/2012610.0020.5056800mg/l0.5685600
6/1/2012516.3330.5276400mg/l0.4260500
7/1/2012447.0030.5303900mg/l0.3789900
8/1/2012304.5020.5142200mg/l0.3034300
9/1/2012280.3330.4697400mg/l0.2486800
10/1/2012363.0030.4201900mg/l0.3477100
11/1/2012279.3330.3650800mg/l0.2571400
12/1/2012191.5020.3109400mg/l0.1746700
1/1/2013227.5020.2743600mg/l0.2031000
2/1/2013142.6730.2473900mg/l0.1298200
3/1/2013192.6730.2327800mg/l0.1856500
4/1/2013345.0030.2297800mg/l0.3404600
5/1/2013364.3330.2439500mg/l0.3630900
6/1/2013607.3330.3132500mg/l0.5684100
7/1/2013477.2540.3548800mg/l0.4686600
8/1/2013529.3330.4193200mg/l0.4746900
9/1/2013448.7540.4620000mg/l0.4271000
10/1/2013394.6730.4702800mg/l0.3499800
11/1/2013282.2540.4566000mg/l0.2816300
12/1/2013273.7540.4010000mg/l0.2477200
1/1/2014285.6730.3690700mg/l0.2794000
2/1/2014341.3330.3377400mg/l0.3395700
3/1/2014452.5020.3383600mg/l0.3826700
5/1/2014340.0010.3386500mg/l0.3400000
6/1/2014310.6050.3460200mg/l0.2994500
7/1/2014532.6730.3954200mg/l0.4883100
8/1/2014519.2540.4310000mg/l0.4992400
9/1/2014500.0040.4405000mg/l0.4413200
10/1/2014377.0030.4299200mg/l0.3460700
11/1/2014272.3330.4186400mg/l0.2536000
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 145.80 876.00
Mean 79.94 61.54 38.30359
Low 28.90 0.00
No. of Samples 39 1,617

Five-year Trend Graph

      
1/1/201093.18893.1800000percent (%)91.8900000
2/1/201090.35891.7700000percent (%)89.9300000
3/1/201096.54893.3600000percent (%)95.8800000
4/1/201084.40891.1200000percent (%)77.3600000
6/1/201080.19788.9300000percent (%)77.6100000
8/1/201073.48683.6500000percent (%)69.7700000
9/1/201081.34579.8500000percent (%)69.9600000
10/1/2010109.18486.0500000percent (%)99.9500000
11/1/201078.02684.4400000percent (%)73.2700000
12/1/2010104.26589.2600000percent (%)100.3500000
1/1/2011124.07795.0600000percent (%)120.7800000
2/1/2011103.788100.1100000percent (%)95.8400000
3/1/2011103.558103.8100000percent (%)103.0200000
4/1/2011138.917108.7700000percent (%)137.4600000
7/1/2011114.168115.1000000percent (%)106.8500000
8/1/201180.618109.3100000percent (%)78.6700000
9/1/2011119.118113.2000000percent (%)115.3500000
10/1/2011159.168118.2600000percent (%)144.1000000
11/1/2011103.507115.3100000percent (%)101.0300000
12/1/201181.458109.6700000percent (%)79.8800000
1/1/201270.777102.4300000percent (%)68.5700000
2/1/2012114.188108.0300000percent (%)107.0400000
3/1/201289.838103.1500000percent (%)87.8400000
4/1/2012100.64793.4000000percent (%)90.6200000
5/1/2012151.573101.4100000percent (%)130.9700000
6/1/201268.80399.3000000percent (%)61.0800000
7/1/201282.973101.3300000percent (%)81.8600000
8/1/201293.10297.8200000percent (%)91.6300000
9/1/201284.00396.8500000percent (%)83.9000000
10/1/201282.57393.8400000percent (%)82.4600000
11/1/2012112.70287.3600000percent (%)108.6900000
12/1/201269.60287.4900000percent (%)69.4300000
1/1/201390.80188.8000000percent (%)90.8000000
2/1/201391.97388.6100000percent (%)89.6300000
3/1/2013155.973100.6000000percent (%)138.8400000
4/1/201361.20197.0400000percent (%)61.2000000
5/1/201336.73384.3800000percent (%)29.5400000
7/1/201389.60187.0900000percent (%)89.6000000
9/1/201356.20160.9300000percent (%)56.2000000
11/1/201390.70178.8300000percent (%)90.7000000
12/1/201381.60279.5300000percent (%)81.3700000
2/1/2014100.80282.3300000percent (%)100.4800000
3/1/2014126.933100.0100000percent (%)126.1700000
4/1/201489.80397.9700000percent (%)89.7800000
5/1/201465.85493.0000000percent (%)60.8500000
6/1/201464.45489.5700000percent (%)62.7500000
7/1/201471.48486.5500000percent (%)69.9600000
8/1/201477.73482.7100000percent (%)77.6100000
9/1/201469.23473.0900000percent (%)68.2100000
10/1/201473.25470.3300000percent (%)73.0700000
11/1/201491.80474.6600000percent (%)88.3600000
12/1/2014116.70383.3700000percent (%)116.4800000
Target
percent (%)
Threshold
38.00 percent (%)

Rainfall

Units: inches Year
2014
Historical
period of record
High 44.14 57.48
Mean 15.6896176912219
Low 7.46
No. of Samples 356 4,805

Five-year Trend Graph

      
1/1/20103.50313.5000000inches3.5000000
2/1/20102.34282.3400000inches2.3400000
3/1/20105.94315.9400000inches5.9400000
4/1/20102.13302.1300000inches2.1300000
5/1/20100.90310.9000000inches0.9000000
6/1/20105.56305.5600000inches5.5600000
7/1/20103.47313.4700000inches3.4700000
8/1/201012.023112.0200000inches12.0200000
9/1/20102.43302.4300000inches2.4300000
10/1/20100.01310.0100000inches0.0100000
11/1/20101.65301.6500000inches1.6500000
12/1/20101.14311.1400000inches1.1400000
1/1/20112.97312.9700000inches2.9700000
2/1/20110.60280.6000000inches0.6000000
3/1/20117.70317.7000000inches7.7000000
4/1/20111.45301.4500000inches1.4500000
5/1/20112.43312.4300000inches2.4300000
6/1/20115.47305.4700000inches5.4700000
7/1/20115.88315.8800000inches5.8800000
8/1/20119.76319.7600000inches9.7600000
9/1/20115.59305.5900000inches5.5900000
10/1/20111.97301.9700000inches1.9700000
11/1/20111.05301.0500000inches1.0500000
12/1/20110.33300.3300000inches0.3300000
1/1/20120.59290.5900000inches0.5900000
2/1/20121.12291.1200000inches1.1200000
3/1/20121.95311.9500000inches1.9500000
4/1/20122.12242.1200000inches2.1200000
5/1/20121.39311.3900000inches1.3900000
6/1/201214.603014.6000000inches14.6000000
7/1/20125.56315.5600000inches5.5600000
8/1/20128.53318.5300000inches8.5300000
9/1/20122.87302.8700000inches2.8700000
10/1/20124.11314.1100000inches4.1100000
11/1/20120.01280.0100000inches0.0100000
12/1/20121.64311.6400000inches1.6400000
1/1/20130.41310.4100000inches0.4100000
2/1/20130.99230.9900000inches0.9900000
3/1/20131.56301.5600000inches1.5600000
4/1/20132.53302.5300000inches2.5300000
5/1/20133.04313.0400000inches3.0400000
6/1/201315.323015.3200000inches15.3200000
7/1/20138.39318.3900000inches8.3900000
8/1/20138.69318.6900000inches8.6900000
9/1/201310.903010.9000000inches10.9000000
10/1/20131.54311.5400000inches1.5400000
11/1/20131.33301.3300000inches1.3300000
12/1/20130.21310.2100000inches0.2100000
1/1/20142.29312.2900000inches2.2900000
2/1/20143.79283.7900000inches3.7900000
3/1/20144.43314.4300000inches4.4300000
4/1/20141.69291.6900000inches1.6900000
5/1/20146.36316.3600000inches6.3600000
6/1/20144.23304.2300000inches4.2300000
7/1/20145.31315.3100000inches5.3100000
8/1/20143.57283.5700000inches3.5700000
9/1/20146.07266.0700000inches6.0700000
10/1/20142.71302.7100000inches2.7100000
11/1/20143.08303.0800000inches3.0800000
12/1/20140.61310.6100000inches0.6100000
Target
inches
Threshold
inches

Salinity

Units: PSS Year
2014
Historical
period of record
High 0.39 430.00
Mean 0.28 0.33 11.74017
Low 0.16 0.00
No. of Samples 39 1,346

Five-year Trend Graph

      
1/1/20100.3280.3200000PSS0.3100000
2/1/20100.3180.3200000PSS0.3000000
3/1/20100.3480.3200000PSS0.3200000
4/1/20100.3580.3300000PSS0.3400000
6/1/20100.3770.3400000PSS0.3600000
8/1/20100.2560.3300000PSS0.2400000
9/1/20100.2850.3100000PSS0.2700000
10/1/20100.2460.2900000PSS0.3500000
11/1/20100.3460.3000000PSS0.3300000
12/1/20100.3150.2800000PSS0.3000000
1/1/20110.3670.3000000PSS0.3500000
2/1/20110.3480.3100000PSS0.3300000
3/1/20110.1770.2900000PSS0.1600000
4/1/20110.3570.3100000PSS0.3500000
7/1/20110.3280.3000000PSS0.3100000
8/1/20110.2680.2800000PSS0.2500000
9/1/20110.2980.3100000PSS0.2900000
10/1/20110.3080.2900000PSS0.3000000
11/1/20110.3570.3000000PSS0.3400000
12/1/20110.4080.3200000PSS0.3900000
1/1/20120.4070.3300000PSS0.3900000
2/1/20120.3880.3500000PSS0.3600000
3/1/20120.3780.3700000PSS0.3400000
4/1/20120.4070.3800000PSS0.4000000
5/1/20120.4230.4000000PSS0.4200000
6/1/20120.3430.3900000PSS0.3300000
7/1/20120.2830.3700000PSS0.2800000
8/1/20120.3120.3500000PSS0.3100000
9/1/20120.2930.3400000PSS0.2900000
10/1/20120.2730.3200000PSS0.2700000
11/1/20120.3220.3000000PSS0.3100000
12/1/20120.3220.3000000PSS0.3100000
1/1/20130.3510.3100000PSS0.3500000
2/1/20130.4220.3300000PSS0.4200000
3/1/20130.3820.3400000PSS0.3800000
5/1/20130.3920.3700000PSS0.3800000
2/1/20140.3020.3000000PSS0.2900000
3/1/20140.3330.3200000PSS0.3300000
4/1/20140.2830.3000000PSS0.2800000
5/1/20140.3040.3000000PSS0.3000000
6/1/20140.2740.3000000PSS0.2700000
7/1/20140.1940.2800000PSS0.1900000
8/1/20140.3240.2800000PSS0.3200000
9/1/20140.2940.2800000PSS0.2900000
10/1/20140.2940.2800000PSS0.2900000
11/1/20140.3140.2800000PSS0.3100000
12/1/20140.3230.2900000PSS0.3200000

Turbidity

Units: NTU Year
2014
Historical
period of record
High 21.00 112.00
Mean 6.3 3.95 6.98862
Low 2.80 0.091
No. of Samples 31 1,772

Five-year Trend Graph

      
1/1/20104.9394.9300000NTU4.5600000
2/1/20106.9795.9500000NTU5.8600000
3/1/20105.27105.7200000NTU4.3900000
4/1/20105.4085.6400000NTU4.8700000
5/1/20104.6895.4500000NTU3.0900000
6/1/20102.9295.0300000NTU2.5700000
7/1/20109.7015.8200000NTU9.7000000
8/1/20107.4095.9000000NTU6.0300000
9/1/20106.7496.1400000NTU5.6900000
10/1/20103.9095.8900000NTU3.5300000
11/1/20103.1695.6400000NTU2.5600000
12/1/20104.2295.8500000NTU3.4800000
1/1/20114.17104.9300000NTU3.8200000
2/1/20112.7894.1600000NTU2.5400000
3/1/201119.8886.3500000NTU16.1500000
4/1/20114.8796.5100000NTU4.4300000
5/1/20113.1796.5200000NTU2.8600000
6/1/20113.2296.3500000NTU2.9400000
7/1/20113.9696.3100000NTU3.4100000
8/1/20113.84106.4900000NTU3.4000000
9/1/20116.1484.2000000NTU5.2900000
10/1/20114.79104.1900000NTU4.5200000
11/1/20112.7984.1200000NTU2.5800000
12/1/20112.5794.0200000NTU2.3900000
1/1/20122.1493.7100000NTU2.0700000
2/1/20123.3093.6200000NTU2.9300000
3/1/20122.2992.9800000NTU2.1000000
4/1/20121.8282.4900000NTU1.7500000
5/1/20121.1222.2100000NTU1.1200000
6/1/20123.3332.3300000NTU3.1800000
7/1/20129.3333.5300000NTU9.1800000
8/1/20126.5024.0700000NTU6.4500000
9/1/20127.6334.9600000NTU7.4300000
10/1/20125.9035.6400000NTU5.8600000
11/1/20123.9036.1000000NTU3.8500000
12/1/20123.9026.1900000NTU3.8900000
1/1/20134.2525.3500000NTU3.7200000
2/1/20132.8734.7400000NTU2.5400000
3/1/20134.0034.1400000NTU3.9600000
4/1/20134.6033.9200000NTU3.6700000
5/1/20138.6024.7000000NTU7.3900000
6/1/201312.5736.1500000NTU7.5600000
7/1/20137.9346.7600000NTU7.8300000
8/1/201310.6338.0600000NTU9.4700000
9/1/201314.7049.8400000NTU12.8700000
10/1/20138.43310.4800000NTU8.3600000
11/1/20137.43410.2800000NTU7.0200000
12/1/20138.9049.6700000NTU7.2200000
1/1/20145.6339.2900000NTU5.5100000
2/1/20149.4039.0800000NTU8.8400000
3/1/20145.8027.6000000NTU5.5500000
5/1/20144.6016.8700000NTU4.6000000
6/1/20146.7656.4400000NTU5.6400000
7/1/201413.9338.1000000NTU12.8700000
8/1/20146.0247.4200000NTU5.7900000
9/1/20145.2547.3100000NTU4.7500000
10/1/20147.9737.4200000NTU7.9300000
11/1/20144.8737.4700000NTU4.7600000
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:
  • 1947
Pass

Chlorophyll a

Score: Pass
Units: mg/l Year
2014
Historical
period of record
High 0.0 0.1
Mean 0.0078 0.008 0.01247388
Low 0.0038 0.0003
No. of Samples 9 182

Five-year Trend Graph

     
1/1/20108.6810.0086800mg/l0.0086800
3/1/20103.3410.0060100mg/l0.0033400
4/1/20107.4710.0065000mg/l0.0074700
5/1/201027.2010.0116700mg/l0.0272000
6/1/20106.8710.0107100mg/l0.0068700
8/1/201017.5010.0124800mg/l0.0175000
9/1/201010.7010.0139500mg/l0.0107000
10/1/20105.0310.0134600mg/l0.0050300
11/1/20107.6310.0095500mg/l0.0076300
12/1/20102.8710.0087500mg/l0.0028700
1/1/20110.2510.0073300mg/l0.0002500
2/1/20115.5710.0053400mg/l0.0055700
3/1/20114.8110.0043600mg/l0.0048100
4/1/20118.8410.0050000mg/l0.0088400
5/1/20115.7910.0046900mg/l0.0057900
6/1/20117.9110.0055300mg/l0.0079100
7/1/201119.4010.0087200mg/l0.0194000
8/1/20119.5310.0093800mg/l0.0095300
9/1/201113.4010.0108100mg/l0.0134000
10/1/20116.5910.0104400mg/l0.0065900
11/1/20119.0310.0109800mg/l0.0090300
12/1/20118.4410.0110700mg/l0.0084400
1/1/20129.8110.0094700mg/l0.0098100
2/1/20123.3110.0084300mg/l0.0033100
3/1/20124.1610.0068900mg/l0.0041600
4/1/20124.9210.0066100mg/l0.0049200
5/1/201212.5010.0071900mg/l0.0125000
6/1/20128.1710.0071500mg/l0.0081700
7/1/201212.2010.0075400mg/l0.0122000
8/1/20125.3710.0078900mg/l0.0053700
9/1/20123.3110.0077500mg/l0.0033100
10/1/201212.6010.0090300mg/l0.0126000
11/1/20127.7010.0082300mg/l0.0077000
12/1/20122.8510.0073400mg/l0.0028500
1/1/20139.8210.0069400mg/l0.0098200
2/1/20133.3510.0066100mg/l0.0033500
3/1/20135.3480.0069400mg/l0.0045300
4/1/20135.4480.0057500mg/l0.0052000
5/1/20132.9230.0049500mg/l0.0027900
6/1/201317.2010.0073500mg/l0.0172000
7/1/201315.2080.0082400mg/l0.0149900
8/1/201319.6010.0109500mg/l0.0196000
9/1/20137.3650.0112900mg/l0.0060200
10/1/201316.1240.0130700mg/l0.0150300
11/1/201336.0870.0185900mg/l0.0209600
12/1/20136.2610.0167700mg/l0.0062600
1/1/20147.6710.0155200mg/l0.0076700
2/1/20145.8010.0132200mg/l0.0058000
3/1/20143.8010.0126200mg/l0.0038000
6/1/201410.2010.0068700mg/l0.0102000
7/1/20149.7210.0073800mg/l0.0097200
8/1/20149.8510.0083900mg/l0.0098500
9/1/20145.6110.0088500mg/l0.0056100
10/1/201415.8010.0102400mg/l0.0158000
11/1/20147.6710.0098100mg/l0.0076700
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 1.4 8.9
Mean 0.8855 1.0179 1.44937352
Low 0.602 0.129
No. of Samples 7 218

Five-year Trend Graph

     
1/1/20101185.0011.1850000mg/l1.1850000
3/1/2010687.0010.9360000mg/l0.6870000
4/1/2010720.0010.8640000mg/l0.7200000
5/1/2010823.0010.8537500mg/l0.8230000
6/1/2010746.0010.8322000mg/l0.7460000
8/1/20101230.0010.8412000mg/l1.2300000
9/1/20101382.0010.9802000mg/l1.3820000
10/1/2010735.0010.9832000mg/l0.7350000
11/1/2010712.0010.9610000mg/l0.7120000
12/1/2010595.0010.9308000mg/l0.5950000
1/1/2011914.0010.9280000mg/l0.9140000
2/1/2011726.0010.8440000mg/l0.7260000
3/1/2011935.0010.7695000mg/l0.9350000
4/1/2011903.0010.7975000mg/l0.9030000
5/1/2011757.0010.8050000mg/l0.7570000
6/1/2011696.0010.8218300mg/l0.6960000
7/1/2011690.0010.7845000mg/l0.6900000
8/1/2011914.0010.8158300mg/l0.9140000
9/1/20111761.0010.9535000mg/l1.7610000
10/1/20111049.0010.9778300mg/l1.0490000
11/1/2011645.0010.9591700mg/l0.6450000
12/1/2011738.0010.9661700mg/l0.7380000
1/1/2012718.0010.9708300mg/l0.7180000
2/1/2012559.0010.9116700mg/l0.5590000
3/1/2012477.0010.6976700mg/l0.4770000
4/1/2012490.0010.6045000mg/l0.4900000
5/1/2012458.0010.5733300mg/l0.4580000
6/1/2012825.0010.5878300mg/l0.8250000
7/1/20121217.0010.6710000mg/l1.2170000
8/1/2012733.0010.7000000mg/l0.7330000
9/1/2012981.0010.7840000mg/l0.9810000
10/1/20121125.0010.8898300mg/l1.1250000
11/1/2012938.0010.9698300mg/l0.9380000
12/1/2012784.0010.9630000mg/l0.7840000
1/1/2013689.0010.8750000mg/l0.6890000
2/1/2013519.0010.8393300mg/l0.5190000
3/1/2013778.0040.8055000mg/l0.7244200
4/1/2013790.0040.7496700mg/l0.7853800
5/1/2013879.5020.7399200mg/l0.8762500
6/1/20131373.0010.8380800mg/l1.3730000
7/1/20131506.5040.9743300mg/l1.4959500
8/1/20131405.0011.1220000mg/l1.4050000
9/1/20131346.3331.2167200mg/l1.3461400
10/1/2013985.5021.2493100mg/l0.9813400
11/1/20131239.0031.3092200mg/l1.2260800
12/1/2013741.0011.2038900mg/l0.7410000
1/1/2014636.0011.0588100mg/l0.6360000
2/1/2014957.0010.9841400mg/l0.9570000
3/1/2014602.0010.8600800mg/l0.6020000
6/1/2014929.0010.7810000mg/l0.9290000
7/1/20141231.0010.9297500mg/l1.2310000
10/1/20141403.0011.1876700mg/l1.4030000
11/1/2014726.0011.0722500mg/l0.7260000
Pass

Phosphorus, Total

Trend analysis shows a weak decreasing trend.
Score: Pass
Units: mg/l Year
2014
Historical
period of record
High 0.5 2.2
Mean 0.2898 0.3344 0.27523129
Low 0.159 0.09
No. of Samples 9 226

Five-year Trend Graph

     
1/1/2010210.0010.2100000mg/l0.2100000
3/1/2010135.0010.1725000mg/l0.1350000
4/1/2010268.0010.2043300mg/l0.2680000
5/1/2010408.0010.2552500mg/l0.4080000
6/1/2010352.0010.2746000mg/l0.3520000
8/1/2010433.0010.3192000mg/l0.4330000
9/1/2010372.0010.3666000mg/l0.3720000
10/1/2010189.0010.3508000mg/l0.1890000
11/1/2010184.0010.3060000mg/l0.1840000
12/1/2010183.0010.2722000mg/l0.1830000
1/1/2011251.0010.2686700mg/l0.2510000
2/1/2011197.0010.2293300mg/l0.1970000
3/1/2011370.0010.2290000mg/l0.3700000
4/1/2011327.0010.2520000mg/l0.3270000
5/1/2011308.0010.2726700mg/l0.3080000
6/1/2011212.0010.2775000mg/l0.2120000
7/1/2011408.0010.3036700mg/l0.4080000
8/1/2011379.0010.3340000mg/l0.3790000
9/1/2011476.0010.3516700mg/l0.4760000
10/1/2011234.0010.3361700mg/l0.2340000
11/1/2011194.0010.3171700mg/l0.1940000
12/1/2011207.0010.3163300mg/l0.2070000
1/1/2012180.0010.2783300mg/l0.1800000
2/1/2012143.0010.2390000mg/l0.1430000
3/1/2012132.0010.1816700mg/l0.1320000
4/1/2012167.0010.1705000mg/l0.1670000
5/1/2012158.0010.1645000mg/l0.1580000
6/1/2012315.0010.1825000mg/l0.3150000
7/1/2012288.0010.2005000mg/l0.2880000
8/1/2012170.0010.2050000mg/l0.1700000
9/1/2012209.0010.2178300mg/l0.2090000
10/1/2012268.0010.2346700mg/l0.2680000
11/1/2012236.0010.2476700mg/l0.2360000
12/1/2012210.0010.2301700mg/l0.2100000
1/1/2013172.0010.2108300mg/l0.1720000
3/1/2013244.3330.2260700mg/l0.2430200
4/1/2013456.5040.2637700mg/l0.3920100
5/1/2013189.5020.2544700mg/l0.1892100
6/1/2013365.0010.2854700mg/l0.3650000
7/1/2013465.0040.3440700mg/l0.4632600
8/1/2013379.0010.3498900mg/l0.3790000
9/1/2013526.6730.3969500mg/l0.5135200
10/1/2013442.0020.3945300mg/l0.4036900
11/1/2013326.3330.4173300mg/l0.3179800
12/1/2013211.0010.3916700mg/l0.2110000
1/1/2014214.0010.3498300mg/l0.2140000
2/1/2014266.0010.3310000mg/l0.2660000
3/1/2014227.0010.2810600mg/l0.2270000
6/1/2014260.0010.2417500mg/l0.2600000
7/1/2014393.0010.2865000mg/l0.3930000
8/1/2014455.0010.3337500mg/l0.4550000
9/1/2014466.0010.3935000mg/l0.4660000
10/1/2014324.0010.3796000mg/l0.3240000
11/1/2014159.0010.3428300mg/l0.1590000
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
2014
Historical
period of record
High 89.2 530.0
Mean 54.41 66.34 39.83796
Low 26.70 8.70
No. of Samples 11 229

Five-year Trend Graph

     
1/1/201087.80187.8000000percent (%)87.8000000
3/1/201097.10192.4500000percent (%)97.1000000
4/1/201068.30184.4000000percent (%)68.3000000
6/1/201082.80184.0000000percent (%)82.8000000
8/1/201061.10177.3300000percent (%)61.1000000
9/1/201059.10167.8300000percent (%)59.1000000
10/1/201084.40171.8500000percent (%)84.4000000
12/1/201095.50175.0300000percent (%)95.5000000
2/1/201174.40178.3500000percent (%)74.4000000
3/1/201147.60175.4800000percent (%)47.6000000
4/1/201185.50175.7500000percent (%)85.5000000
7/1/201171.00169.6300000percent (%)71.0000000
8/1/201132.80159.2300000percent (%)32.8000000
9/1/201171.60165.2300000percent (%)71.6000000
10/1/2011129.50176.2300000percent (%)129.5000000
11/1/201180.60177.1000000percent (%)80.6000000
1/1/201275.80178.0600000percent (%)75.8000000
2/1/201288.20189.1400000percent (%)88.2000000
4/1/201286.70182.8300000percent (%)86.7000000
6/1/201236.30171.7500000percent (%)36.3000000
7/1/201250.30165.3800000percent (%)50.3000000
10/1/201255.40147.3300000percent (%)55.4000000
12/1/201241.20148.9700000percent (%)41.2000000
1/1/201368.60155.0700000percent (%)68.6000000
2/1/201381.05261.5600000percent (%)80.9900000
3/1/2013104.00570.0500000percent (%)93.9900000
4/1/201347.88468.5500000percent (%)44.6900000
5/1/2013179.00186.9600000percent (%)179.0000000
7/1/201344.23391.2300000percent (%)31.9400000
9/1/201348.25279.8400000percent (%)48.2200000
10/1/201362.10183.4000000percent (%)62.1000000
11/1/201382.33359.2300000percent (%)82.2100000
12/1/2013109.55269.2900000percent (%)108.8300000
2/1/201484.40177.3300000percent (%)84.4000000
3/1/201483.00184.2800000percent (%)83.0000000
4/1/201486.10189.0800000percent (%)86.1000000
5/1/201446.40181.8900000percent (%)46.4000000
6/1/201439.80167.9400000percent (%)39.8000000
7/1/201483.30170.5000000percent (%)83.3000000
8/1/201443.30163.6500000percent (%)43.3000000
9/1/201426.70154.2700000percent (%)26.7000000
10/1/201427.50144.5000000percent (%)27.5000000
11/1/201447.00144.6000000percent (%)47.0000000
12/1/201489.20152.8300000percent (%)89.2000000
Target
percent (%)
Threshold
56.00 percent (%)

Oysters

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

Five-year Trend Graph

     
1/1/200620.59120.5900000%20.5900000
1/1/200784.35184.3500000%84.3500000
1/1/200875.36175.3600000%75.3600000
1/1/200966.37166.3700000%66.3700000
1/1/201069.94169.9400000%69.9400000
1/1/201145.53145.5300000%45.5300000
1/1/201322.83122.8300000%22.8300000
1/1/201482.35182.3500000%82.3500000

Rainfall

Units: inches Year
2014
Historical
period of record
High 44.1 57.5
Mean 15.6896176912219
Low 7.46
No. of Samples 356 4,805

Five-year Trend Graph

     
1/1/20103.50313.5000000inches3.5000000
2/1/20102.34282.3400000inches2.3400000
3/1/20105.94315.9400000inches5.9400000
4/1/20102.13302.1300000inches2.1300000
5/1/20100.90310.9000000inches0.9000000
6/1/20105.56305.5600000inches5.5600000
7/1/20103.47313.4700000inches3.4700000
8/1/201012.023112.0200000inches12.0200000
9/1/20102.43302.4300000inches2.4300000
10/1/20100.01310.0100000inches0.0100000
11/1/20101.65301.6500000inches1.6500000
12/1/20101.14311.1400000inches1.1400000
1/1/20112.97312.9700000inches2.9700000
2/1/20110.60280.6000000inches0.6000000
3/1/20117.70317.7000000inches7.7000000
4/1/20111.45301.4500000inches1.4500000
5/1/20112.43312.4300000inches2.4300000
6/1/20115.47305.4700000inches5.4700000
7/1/20115.88315.8800000inches5.8800000
8/1/20119.76319.7600000inches9.7600000
9/1/20115.59305.5900000inches5.5900000
10/1/20111.97301.9700000inches1.9700000
11/1/20111.05301.0500000inches1.0500000
12/1/20110.33300.3300000inches0.3300000
1/1/20120.59290.5900000inches0.5900000
2/1/20121.12291.1200000inches1.1200000
3/1/20121.95311.9500000inches1.9500000
4/1/20122.12242.1200000inches2.1200000
5/1/20121.39311.3900000inches1.3900000
6/1/201214.603014.6000000inches14.6000000
7/1/20125.56315.5600000inches5.5600000
8/1/20128.53318.5300000inches8.5300000
9/1/20122.87302.8700000inches2.8700000
10/1/20124.11314.1100000inches4.1100000
11/1/20120.01280.0100000inches0.0100000
12/1/20121.64311.6400000inches1.6400000
1/1/20130.41310.4100000inches0.4100000
2/1/20130.99230.9900000inches0.9900000
3/1/20131.56301.5600000inches1.5600000
4/1/20132.53302.5300000inches2.5300000
5/1/20133.04313.0400000inches3.0400000
6/1/201315.323015.3200000inches15.3200000
7/1/20138.39318.3900000inches8.3900000
8/1/20138.69318.6900000inches8.6900000
9/1/201310.903010.9000000inches10.9000000
10/1/20131.54311.5400000inches1.5400000
11/1/20131.33301.3300000inches1.3300000
12/1/20130.21310.2100000inches0.2100000
1/1/20142.29312.2900000inches2.2900000
2/1/20143.79283.7900000inches3.7900000
3/1/20144.43314.4300000inches4.4300000
4/1/20141.69291.6900000inches1.6900000
5/1/20146.36316.3600000inches6.3600000
6/1/20144.23304.2300000inches4.2300000
7/1/20145.31315.3100000inches5.3100000
8/1/20143.57283.5700000inches3.5700000
9/1/20146.07266.0700000inches6.0700000
10/1/20142.71302.7100000inches2.7100000
11/1/20143.08303.0800000inches3.0800000
12/1/20140.61310.6100000inches0.6100000
Target
inches
Threshold
inches

Salinity

Units: PSS Year
2014
Historical
period of record
High 29.8 36.7
Mean 10.54 10.18 10.3681
Low 0.75 0.00
No. of Samples 11 192

Five-year Trend Graph

     
1/1/201028.13128.1300000PSS28.1300000
3/1/201028.36128.2500000PSS28.3600000
4/1/201027.51128.0000000PSS27.5100000
6/1/201029.31128.3300000PSS29.3100000
8/1/20100.36121.3900000PSS0.3600000
9/1/20104.45115.4100000PSS4.4500000
10/1/20100.2718.6000000PSS0.2700000
12/1/201024.2317.3300000PSS24.2300000
2/1/201123.65113.1500000PSS23.6500000
3/1/201123.65117.9500000PSS23.6500000
4/1/201116.41121.9900000PSS16.4100000
7/1/201124.49122.0500000PSS24.4900000
8/1/201129.63123.5500000PSS29.6300000
9/1/20112.25118.2000000PSS2.2500000
10/1/201123.44119.9500000PSS23.4400000
11/1/201124.91120.9400000PSS24.9100000
1/1/201227.77121.6000000PSS27.7700000
2/1/201230.07121.6900000PSS30.0700000
4/1/201236.67129.8600000PSS36.6700000
6/1/201229.34130.9600000PSS29.3400000
7/1/20123.45124.8800000PSS3.4500000
10/1/201223.10118.6300000PSS23.1000000
12/1/201230.15118.9000000PSS30.1500000
1/1/201325.14126.1300000PSS25.1400000
2/1/201330.35127.1900000PSS30.3500000
3/1/201329.07227.5600000PSS28.8800000
4/1/201332.00129.3400000PSS32.0000000
7/1/201313.79126.3000000PSS13.7900000
10/1/20137.08110.4400000PSS7.0800000
11/1/201326.43115.7700000PSS26.4300000
2/1/20145.66113.0600000PSS5.6600000
3/1/201415.05113.5600000PSS15.0500000
4/1/20148.01113.7900000PSS8.0100000
5/1/201422.36112.7700000PSS22.3600000
6/1/20140.75110.3700000PSS0.7500000
7/1/20141.2118.8400000PSS1.2100000
8/1/201426.03112.2400000PSS26.0300000
9/1/201429.59114.6600000PSS29.5900000
10/1/201420.89116.8100000PSS20.8900000
11/1/201429.83118.0500000PSS29.8300000
12/1/201426.91122.4100000PSS26.9100000

Turbidity

Units: NTU Year
2014
Historical
period of record
High 8.2 21.0
Mean 4.82 3.81 2.8249
Low 2.40 1.30
No. of Samples 9 249

Five-year Trend Graph

     
1/1/20103.4013.4000000NTU3.4000000
3/1/20102.8013.1000000NTU2.8000000
4/1/20101.6012.6000000NTU1.6000000
5/1/20104.0012.9500000NTU4.0000000
6/1/20102.4012.8400000NTU2.4000000
8/1/20108.5013.8600000NTU8.5000000
9/1/20105.1014.3200000NTU5.1000000
10/1/20106.6015.3200000NTU6.6000000
11/1/20104.6015.4400000NTU4.6000000
12/1/20102.4015.4400000NTU2.4000000
1/1/20115.2015.4000000NTU5.2000000
2/1/20113.5014.5700000NTU3.5000000
3/1/20118.5015.1300000NTU8.5000000
4/1/20112.5014.4500000NTU2.5000000
5/1/20112.8014.1500000NTU2.8000000
6/1/20113.6014.3500000NTU3.6000000
7/1/20113.0013.9800000NTU3.0000000
8/1/20113.3013.9500000NTU3.3000000
9/1/20115.5013.4500000NTU5.5000000
10/1/20114.2013.7300000NTU4.2000000
11/1/20112.2013.6300000NTU2.2000000
12/1/20112.7013.4800000NTU2.7000000
1/1/20123.5013.5700000NTU3.5000000
2/1/20122.5013.4300000NTU2.5000000
3/1/20123.0013.0200000NTU3.0000000
4/1/20125.2013.1800000NTU5.2000000
5/1/20123.4013.3800000NTU3.4000000
6/1/20123.6013.5300000NTU3.6000000
7/1/20125.6013.8800000NTU5.6000000
8/1/20122.3013.8500000NTU2.3000000
9/1/20122.6013.7800000NTU2.6000000
10/1/20124.0013.5800000NTU4.0000000
11/1/20123.8013.6500000NTU3.8000000
12/1/20122.2013.4200000NTU2.2000000
1/1/20133.4013.0500000NTU3.4000000
2/1/20132.6013.1000000NTU2.6000000
3/1/20133.9343.3200000NTU3.6700000
4/1/20138.3544.0500000NTU6.8200000
5/1/20134.3014.1300000NTU4.3000000
6/1/20136.0014.7600000NTU6.0000000
7/1/20137.0345.3700000NTU6.9200000
8/1/20138.0016.2700000NTU8.0000000
9/1/201315.3738.1800000NTU12.8900000
10/1/20135.6027.7200000NTU5.4900000
11/1/20136.6738.1100000NTU6.3500000
12/1/20132.6017.5500000NTU2.6000000
1/1/20142.4016.7700000NTU2.4000000
2/1/20147.8016.7400000NTU7.8000000
3/1/20143.5014.7600000NTU3.5000000
6/1/20148.2015.4800000NTU8.2000000
7/1/20146.8016.5800000NTU6.8000000
8/1/20144.9115.8500000NTU4.9100000
9/1/20143.6015.8800000NTU3.6000000
10/1/20146.8016.0600000NTU6.8000000
11/1/20143.2015.5900000NTU3.2000000
Other Measures of Creek Health

Oysters

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

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Most Recent Sarasota County Oyster Monitoring Program Data
Icon Site ID Year Dead Live Total % Live
1 PH3 2014 37 79 116 68

Impervious Features

Phillippi Creek 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 Phillippi Creek Basin is covered by impervious surfaces.

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Land Use / Land Cover

Phillippi Creek 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 »

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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.