Skip Navigation LinksHomeCreek ConditionsCreek Conditions Report

Phillippi Creek Condition Report for 2011

View 2014 Report View 2015 Report

Pass

4 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
2011
Historical
period of record
High 0.0414 0.115
Mean 0.0036 0.0037 0.01043785
Low 0.0005 0.00
No. of Samples 336 1,366

Five-year Rolling Average Graph

      
1/1/20073.28160.0032800mg/l0.0016500
2/1/20074.69160.0039900mg/l0.0024300
3/1/20072.98160.0036500mg/l0.0020000
4/1/20073.81170.0036900mg/l0.0022000
5/1/20072.09160.0033700mg/l0.0012300
6/1/20074.30180.0035300mg/l0.0026500
7/1/20076.54170.0040700mg/l0.0041100
8/1/200711.74140.0052400mg/l0.0083100
9/1/20074.87170.0055600mg/l0.0026400
10/1/20073.4540.0055000mg/l0.0028600
11/1/20072.74160.0056100mg/l0.0021500
12/1/20072.34170.0052800mg/l0.0021300
1/1/20082.55160.0046200mg/l0.0019300
2/1/20085.38150.0035600mg/l0.0032800
3/1/20083.12170.0032600mg/l0.0021800
4/1/20086.19140.0037200mg/l0.0032000
5/1/20084.85150.0040700mg/l0.0034400
6/1/200811.20210.0055500mg/l0.0053300
7/1/200817.51180.0080400mg/l0.0106700
8/1/200812.54220.0092400mg/l0.0066400
9/1/200818.35220.0117700mg/l0.0098000
10/1/20089.80170.0123800mg/l0.0035300
11/1/20082.32100.0119500mg/l0.0020900
12/1/20082.72100.0105400mg/l0.0023100
1/1/20093.06100.0081300mg/l0.0024900
2/1/20097.88100.0073600mg/l0.0052200
3/1/20093.50120.0048800mg/l0.0028000
4/1/200912.8480.0053900mg/l0.0040500
5/1/20097.2520.0062100mg/l0.0072300
6/1/20095.54140.0066800mg/l0.0039100
7/1/20094.08100.0068500mg/l0.0033000
8/1/20094.24160.0062400mg/l0.0037300
9/1/20092.78100.0061200mg/l0.0023400
10/1/20093.68120.0046000mg/l0.0028700
11/1/20097.48140.0046300mg/l0.0035700
12/1/20096.40120.0047800mg/l0.0049600
1/1/20108.84280.0055700mg/l0.0062000
2/1/20109.92280.0065200mg/l0.0057100
3/1/20106.03300.0070600mg/l0.0052400
4/1/20103.99260.0071100mg/l0.0034600
5/1/20102.65280.0063100mg/l0.0025000
6/1/20103.85280.0058800mg/l0.0030000
7/1/201023.15200.0082700mg/l0.0129800
8/1/201014.02280.0089500mg/l0.0080300
9/1/20107.23280.0091500mg/l0.0043800
10/1/20102.20280.0088500mg/l0.0017000
11/1/20102.95280.0089000mg/l0.0017700
12/1/20104.71280.0090400mg/l0.0014900
1/1/20115.35300.0060800mg/l0.0025000
2/1/20114.84280.0045500mg/l0.0027700
3/1/201114.03260.0056800mg/l0.0090600
4/1/20115.95280.0063100mg/l0.0038800
5/1/20117.68280.0070900mg/l0.0040100
6/1/20117.64280.0075800mg/l0.0055000
7/1/20114.88280.0075000mg/l0.0031200
8/1/20116.85300.0078400mg/l0.0033900
9/1/20115.09260.0063500mg/l0.0038300
10/1/20113.65300.0059700mg/l0.0032200
11/1/20114.77260.0054800mg/l0.0028100
12/1/20112.94280.0047000mg/l0.0023100
Target
mg/l
Threshold
0.02 mg/l
Pass

Nitrogen, Total

Score: Pass
Units: mg/l Year
2011
Historical
period of record
High 3.74 19.23
Mean 1.1073 1.2104 1.64538657
Low 0.383 0.144
No. of Samples 108 1,410

Five-year Rolling Average Graph

      
1/1/20071042.53171.0425300mg/l1.0050000
2/1/20071158.53171.1005300mg/l1.0940500
3/1/2007768.53170.9898600mg/l0.7485900
4/1/2007762.24170.9329600mg/l0.7309400
5/1/2007677.88170.8819400mg/l0.6532500
6/1/2007852.72180.8770700mg/l0.7721700
7/1/20071010.18170.8716800mg/l0.9559300
8/1/2007846.36140.8196500mg/l0.8167500
9/1/2007630.93150.7967200mg/l0.5770600
10/1/20071335.0020.8921800mg/l1.3175700
11/1/2007674.20150.8915700mg/l0.6194900
12/1/2007904.47150.9001900mg/l0.8347900
1/1/2008990.20150.8968600mg/l0.9348900
2/1/2008723.43140.8763700mg/l0.6637600
3/1/2008700.93150.8880400mg/l0.6566700
4/1/20081070.93140.8440300mg/l1.0066500
5/1/2008914.93140.8841500mg/l0.8666200
6/1/20081232.74190.9388600mg/l1.0176700
7/1/20081200.28180.9738700mg/l1.1302000
8/1/20081391.81211.0852700mg/l1.2956700
9/1/20081351.70201.1937300mg/l1.3004700
10/1/20081165.41171.2094800mg/l1.0309800
11/1/2008861.6791.2006000mg/l0.8125400
12/1/2008762.4491.1222200mg/l0.7171500
1/1/2009766.4491.0499100mg/l0.7374900
2/1/2009783.0090.9484400mg/l0.7446600
3/1/2009871.80100.8684600mg/l0.8259200
4/1/2009883.6380.8215000mg/l0.8585000
5/1/20091106.0010.8622200mg/l1.1060000
6/1/20091054.27110.9108600mg/l1.0112600
7/1/20091348.6791.0079000mg/l1.2704900
8/1/20091484.25121.1247700mg/l1.3639000
9/1/20091248.2291.1875100mg/l1.1154400
10/1/20091299.60101.2568400mg/l1.2412700
11/1/20091172.27111.2678800mg/l1.1484700
12/1/20091635.80101.3648000mg/l1.5846800
1/1/20101460.6791.3834700mg/l1.4066200
2/1/20101534.8991.3919100mg/l1.4466200
3/1/20101164.90101.3780200mg/l1.0560200
4/1/20101074.0081.3404200mg/l1.0496200
5/1/2010893.8991.2940300mg/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
1/1/2011889.40101.1611400mg/l0.8379700
2/1/2011961.0091.1100700mg/l0.8726500
3/1/20112406.6381.2605100mg/l2.3426200
4/1/20111349.8991.3270800mg/l1.1921000
5/1/20111160.2291.3453400mg/l1.1085800
6/1/20111046.3391.3022500mg/l1.0425800
7/1/20111109.0091.3388500mg/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
Pass

Phosphorus, Total

Score: Pass
Units: mg/l Year
2011
Historical
period of record
High 2.00 7.36
Mean 0.4888 0.4463 0.43281835
Low 0.089 0.034
No. of Samples 324 1,846

Five-year Rolling Average Graph

      
1/1/2007359.18170.3591800mg/l0.2546500
2/1/2007273.76170.3164700mg/l0.2367800
3/1/2007328.59170.3205100mg/l0.2532900
4/1/2007346.47170.3270000mg/l0.2963300
5/1/2007442.29170.3500600mg/l0.3579300
6/1/2007688.17180.4064100mg/l0.5778500
7/1/2007945.94170.5042000mg/l0.8203100
8/1/2007492.00140.5405800mg/l0.4363600
9/1/2007575.27150.5816900mg/l0.5019800
10/1/2007745.0020.6481100mg/l0.6549800
11/1/2007302.20150.6247600mg/l0.2691700
12/1/2007371.73150.5720200mg/l0.3250600
1/1/2008397.53150.4806200mg/l0.3322100
2/1/2008339.64140.4552300mg/l0.2875800
3/1/2008420.27150.4294000mg/l0.3416400
4/1/2008505.00140.3894000mg/l0.4386600
5/1/2008532.93140.4278500mg/l0.4560700
6/1/2008841.11190.5060800mg/l0.5956300
7/1/2008456.83180.5159600mg/l0.4060200
8/1/2008481.71210.5396400mg/l0.4017100
9/1/2008417.40200.5391600mg/l0.3896200
10/1/2008457.12170.5311800mg/l0.4126900
11/1/2008515.4490.5282700mg/l0.3929300
12/1/2008666.0090.4990800mg/l0.4752400
1/1/2009409.3390.4911700mg/l0.3500600
2/1/2009507.5690.4954800mg/l0.4127600
3/1/2009940.80100.5827100mg/l0.6842000
4/1/2009925.6380.6607900mg/l0.8178800
5/1/2009830.0010.7132200mg/l0.8300000
6/1/2009566.45110.6966300mg/l0.5211400
7/1/2009501.5690.7120000mg/l0.4922200
8/1/2009458.33120.7038000mg/l0.4327000
9/1/2009488.4490.6284000mg/l0.4309700
10/1/2009423.40100.5447000mg/l0.3871000
11/1/2009400.18110.4730600mg/l0.3661300
12/1/2009400.40100.4453900mg/l0.3876400
1/1/2010364.70270.4225800mg/l0.3394500
2/1/2010496.41270.4289200mg/l0.4417900
3/1/2010373.68280.4098000mg/l0.3263600
4/1/2010584.69260.4366800mg/l0.5091900
5/1/2010673.07270.4821600mg/l0.5497400
6/1/2010816.00270.5514300mg/l0.7245400
7/1/2010447.05190.5651500mg/l0.4366500
8/1/2010501.81270.5660500mg/l0.4915300
9/1/2010600.19270.6038000mg/l0.5700600
10/1/2010406.59270.5741200mg/l0.3608200
11/1/2010384.15270.5259700mg/l0.3335500
12/1/2010411.67270.4585800mg/l0.3521400
1/1/2011433.68280.4563500mg/l0.3585700
2/1/2011375.63270.4353200mg/l0.3272400
3/1/2011990.58260.5003800mg/l0.9224600
4/1/2011488.93270.5141100mg/l0.4450300
5/1/2011540.89270.5402300mg/l0.4948200
6/1/2011879.26270.6181600mg/l0.8030600
7/1/2011620.96270.6493800mg/l0.5730500
8/1/2011566.86280.6812500mg/l0.5298300
9/1/2011605.42260.6170500mg/l0.5848100
10/1/2011495.21280.6181000mg/l0.4522400
11/1/2011438.31260.6010000mg/l0.3813000
12/1/2011387.52270.5190500mg/l0.3274900
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
2011
Historical
period of record
High 247.50 613.00
Mean 101.07 66.04 34.94362
Low 38.657 0.00
No. of Samples 360 2,183

Five-year Rolling Average Graph

      
1/1/200775.861875.8600000percent (%)68.7000000
2/1/200797.301786.5800000percent (%)96.0100000
3/1/200767.461780.2100000percent (%)62.8700000
4/1/200767.791777.1000000percent (%)64.3500000
5/1/200772.591776.2000000percent (%)62.8900000
6/1/200756.041872.8400000percent (%)44.4600000
7/1/200742.03567.2000000percent (%)41.1000000
8/1/200733.29256.5300000percent (%)32.6900000
9/1/200790.591560.3900000percent (%)82.4000000
10/1/200759.10258.9400000percent (%)58.4100000
11/1/200782.601460.6100000percent (%)61.4700000
12/1/200771.761463.2300000percent (%)67.2400000
1/1/200872.311568.2800000percent (%)66.1400000
2/1/200898.851379.2000000percent (%)94.3800000
3/1/200878.431577.1800000percent (%)67.3200000
4/1/200861.35677.5500000percent (%)57.4100000
5/1/200834.46169.5300000percent (%)34.4600000
6/1/200848.09765.5800000percent (%)43.3400000
7/1/200880.68566.9800000percent (%)79.2900000
8/1/200889.53665.4200000percent (%)71.0800000
9/1/200863.40262.9200000percent (%)62.7600000
11/1/200873.97871.1300000percent (%)71.7000000
12/1/200874.361076.3900000percent (%)68.5000000
1/1/200997.081079.6700000percent (%)94.8400000
2/1/200979.66977.6900000percent (%)76.1400000
3/1/200952.711375.5600000percent (%)44.1400000
4/1/200996.49979.0500000percent (%)86.8600000
5/1/200952.01675.3900000percent (%)50.3400000
6/1/200981.831376.6300000percent (%)71.5100000
7/1/200956.941069.9400000percent (%)53.1500000
8/1/200947.98664.6600000percent (%)47.6300000
9/1/200977.47968.7900000percent (%)71.1700000
10/1/200969.151164.2300000percent (%)65.7800000
11/1/200988.881270.3800000percent (%)85.7200000
12/1/200970.091168.4200000percent (%)69.5400000
1/1/201091.452874.1700000percent (%)90.2600000
2/1/201087.662880.7800000percent (%)87.0400000
3/1/201091.313083.0900000percent (%)90.1000000
4/1/201082.872685.3800000percent (%)76.2900000
5/1/201045.42278.1300000percent (%)45.4200000
6/1/201076.812579.2500000percent (%)73.9900000
7/1/2010117.621183.6200000percent (%)82.3200000
8/1/201071.795780.9700000percent (%)68.5900000
9/1/201078.311978.8000000percent (%)69.3100000
10/1/2010103.021482.1600000percent (%)94.2200000
11/1/201076.612087.3600000percent (%)72.2800000
12/1/2010105.511992.1400000percent (%)102.1400000
1/1/2011116.496791.9600000percent (%)112.6400000
2/1/2011101.197396.8600000percent (%)94.2000000
3/1/2011105.8326101.4400000percent (%)105.0800000
4/1/2011136.6425107.0500000percent (%)132.7600000
5/1/201160.892104.4300000percent (%)60.8900000
6/1/201159.88296.8200000percent (%)59.8400000
7/1/2011107.782895.3700000percent (%)100.0400000
8/1/201175.713091.1200000percent (%)73.0100000
9/1/2011115.672692.7600000percent (%)111.5100000
10/1/2011143.033093.8300000percent (%)127.1300000
11/1/2011101.2023100.5500000percent (%)98.6800000
12/1/201180.8428104.0400000percent (%)79.4600000
Target
percent (%)
Threshold
38.00 percent (%)

BOD, Biochemical oxygen demand

Units: mg/l Year
2011
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

      
1/1/20070.89150.8900000mg/l0.7400000
2/1/20070.97150.9300000mg/l0.9100000
3/1/20070.65150.8400000mg/l0.6200000
4/1/20071.28150.9500000mg/l1.1400000
5/1/20071.23151.0000000mg/l1.0900000
6/1/20071.76151.1300000mg/l1.4000000
7/1/20071.62151.2500000mg/l1.4200000
8/1/20071.67121.3700000mg/l1.4400000
9/1/20071.15121.4500000mg/l0.8900000
11/1/20071.08131.4600000mg/l1.0400000
12/1/20070.97131.3000000mg/l0.9200000
2/1/20081.22121.1100000mg/l1.0900000
3/1/20081.55121.2100000mg/l1.0000000
4/1/20081.27131.2200000mg/l1.0900000
5/1/20081.29121.2600000mg/l1.0600000
6/1/20082.68161.6000000mg/l1.4100000
7/1/20081.66171.6100000mg/l1.4500000
8/1/20082.01201.7400000mg/l1.6700000
9/1/20081.76181.7800000mg/l1.5400000
10/1/20082.11171.9200000mg/l1.0600000
11/1/20080.9381.8600000mg/l0.8500000
12/1/20080.8081.5500000mg/l0.7600000
1/1/20090.7881.4000000mg/l0.7500000
2/1/20090.9281.2200000mg/l0.8600000
3/1/20091.7491.2100000mg/l1.3900000
4/1/20091.2791.0700000mg/l1.0100000
5/1/20092.0341.2600000mg/l1.8900000
6/1/20091.27121.3400000mg/l1.1100000
7/1/20090.9581.3600000mg/l0.8600000
8/1/20092.56101.6400000mg/l1.8500000
9/1/20091.1391.5400000mg/l0.9300000
10/1/20091.1991.5200000mg/l1.0400000
11/1/20091.28101.4000000mg/l1.0700000
12/1/20091.7491.4800000mg/l1.4300000
1/1/20101.80261.6200000mg/l1.5400000
2/1/20102.15261.5500000mg/l1.7400000
3/1/20101.62261.6300000mg/l1.3000000
4/1/20101.33261.6500000mg/l1.2400000
5/1/20100.83261.5800000mg/l0.7600000
6/1/20101.26261.5000000mg/l1.0600000
7/1/20102.90181.6800000mg/l2.4800000
8/1/20101.95261.6500000mg/l1.6800000
9/1/20101.17261.5700000mg/l1.0200000
10/1/20100.72261.4700000mg/l0.7000000
11/1/20100.68261.4500000mg/l0.6500000
12/1/20102.21261.6100000mg/l1.8400000
1/1/20110.94261.2800000mg/l0.8600000
2/1/20111.10261.1400000mg/l0.9000000
3/1/201111.74252.9000000mg/l11.0500000
4/1/20113.00263.2800000mg/l2.3100000
5/1/20111.46263.4100000mg/l1.2500000
6/1/20112.14263.4000000mg/l1.8100000
7/1/20111.54263.5000000mg/l1.2800000
8/1/20111.36263.5400000mg/l1.1100000
9/1/20111.72261.8700000mg/l1.4800000
10/1/20111.02261.5400000mg/l0.9900000
11/1/20111.03261.4700000mg/l1.0200000
12/1/20110.78261.2400000mg/l0.7400000

Color

Units: PCU Year
2011
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

      

Escherichia coli

Units: cfu/100ml Year
2011
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

      
Target
cfu/100ml
Threshold
cfu/100ml

Nitrogen, Ammonia + Ammonium as N

Units: ug/l Year
2011
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

      
1/1/2007102.8816102.8800000ug/l92.4800000
2/1/2007109.4416106.1600000ug/l101.8900000
3/1/200760.191690.8400000ug/l53.7300000
4/1/2007134.7516101.8200000ug/l121.5800000
5/1/200779.251697.3000000ug/l73.1800000
6/1/2007138.6316104.1900000ug/l103.8000000
7/1/2007145.2516111.2500000ug/l106.7300000
8/1/2007113.1513111.8700000ug/l106.1700000
9/1/2007132.6213123.9400000ug/l119.3000000
10/1/200753.001110.3200000ug/l53.0000000
11/1/2007137.0714119.9500000ug/l106.5500000
12/1/2007108.3113114.9000000ug/l101.4000000
1/1/200878.9213103.8500000ug/l76.2000000
2/1/2008147.3113109.5400000ug/l120.4600000
3/1/200869.791499.0700000ug/l54.7500000
4/1/2008172.0013118.9000000ug/l121.6400000
5/1/200885.3113110.2700000ug/l66.9700000
6/1/2008233.7218131.1800000ug/l107.6800000
7/1/2008211.0017153.1900000ug/l192.7100000
8/1/2008237.0521168.1500000ug/l152.2600000
9/1/2008264.2520200.5600000ug/l184.5500000
10/1/2008189.0617203.4000000ug/l132.7300000
11/1/2008116.789208.6400000ug/l101.9700000
12/1/200898.569186.1200000ug/l82.5800000
1/1/2009117.139170.4700000ug/l104.8700000
2/1/2009140.759154.4200000ug/l107.1000000
3/1/200994.4010126.1100000ug/l85.8700000
4/1/2009119.138114.4600000ug/l116.1600000
5/1/200913.00197.1600000ug/l13.0000000
6/1/2009122.339101.1200000ug/l85.7200000
7/1/2009173.229110.4700000ug/l120.1500000
8/1/2009232.4010125.7500000ug/l118.3900000
9/1/2009224.758147.4700000ug/l112.2300000
10/1/2009198.449160.6900000ug/l148.7500000
11/1/200963.679169.1400000ug/l58.4800000
12/1/2009254.139191.1000000ug/l198.1900000
1/1/2010229.1927200.4300000ug/l179.0000000
2/1/2010265.1527205.8900000ug/l194.5600000
3/1/2010147.7528193.0600000ug/l95.6300000
4/1/2010126.6226181.0900000ug/l117.2000000
5/1/2010111.8527189.1200000ug/l99.7400000
6/1/201064.4127157.5000000ug/l40.6300000
7/1/2010181.7919149.6000000ug/l161.4100000
8/1/2010205.0027139.5700000ug/l158.1600000
9/1/2010183.9327145.6000000ug/l143.1600000
10/1/201040.5627131.2600000ug/l34.6000000
11/1/2010114.3027131.6700000ug/l89.2700000
12/1/2010135.7027143.5500000ug/l85.6500000
1/1/201177.8628126.2300000ug/l60.7600000
2/1/201158.0027101.7300000ug/l46.9700000
3/1/2011437.2726143.9500000ug/l300.7400000
4/1/2011391.7827202.4900000ug/l223.3700000
5/1/2011173.7427212.3900000ug/l125.5100000
6/1/201139.5627196.3700000ug/l25.5700000
7/1/2011168.2627211.4400000ug/l77.2400000
8/1/201183.8628215.7500000ug/l41.0800000
9/1/2011221.6226179.8000000ug/l160.3400000
10/1/2011112.2528133.2200000ug/l94.6300000
11/1/2011110.9626122.7500000ug/l101.3800000
12/1/201163.9327126.8100000ug/l37.1800000

Nitrogen, Kjeldahl

Units: ug/l Year
2011
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

      
1/1/2007829.8816829.8800000ug/l819.1000000
2/1/2007757.0616793.4700000ug/l738.7000000
3/1/2007636.4416741.1300000ug/l630.2700000
4/1/2007629.7516713.2800000ug/l599.2600000
5/1/2007635.8816697.8000000ug/l616.7900000
6/1/2007767.8817709.4800000ug/l706.2700000
7/1/2007938.8116727.6400000ug/l894.1600000
8/1/2007740.1513724.8200000ug/l717.9200000
9/1/2007483.1414699.2700000ug/l439.6900000
10/1/20071060.002770.9800000ug/l1050.7100000
11/1/2007481.8614745.3100000ug/l459.3700000
12/1/2007687.1414731.8500000ug/l623.1300000
1/1/2008757.5714701.6400000ug/l734.0400000
2/1/2008599.5413678.2100000ug/l553.4000000
3/1/2008644.4314705.0900000ug/l609.4400000
4/1/2008999.5413695.0100000ug/l941.4100000
5/1/2008909.8513766.3500000ug/l861.5900000
6/1/20081228.0618856.5000000ug/l1006.6200000
7/1/20081160.3517923.6300000ug/l1095.1700000
8/1/20081234.95211029.5300000ug/l1137.9800000
9/1/20081201.60201122.3900000ug/l1143.7500000
10/1/20081012.29171124.5200000ug/l868.6700000
11/1/2008684.2291086.9100000ug/l651.5100000
12/1/2008608.569983.6600000ug/l564.0600000
1/1/2009634.679896.0500000ug/l610.8500000
2/1/2009658.009799.8900000ug/l639.6800000
3/1/2009764.7010727.0700000ug/l724.4400000
4/1/2009838.638698.1300000ug/l812.9900000
5/1/20091100.001767.4300000ug/l1100.0000000
6/1/2009921.8211819.6400000ug/l877.4600000
7/1/2009992.899879.3400000ug/l945.0700000
8/1/20091097.7512952.6300000ug/l1009.0400000
9/1/2009818.449961.5900000ug/l761.5500000
10/1/2009830.0010960.1500000ug/l797.8700000
11/1/2009789.3611908.3800000ug/l774.4000000
12/1/20091133.6010943.6700000ug/l1098.2100000
1/1/2010998.7427944.6500000ug/l963.9000000
2/1/20101171.9327957.0100000ug/l1075.7700000
3/1/2010852.9328962.7600000ug/l803.1100000
4/1/2010805.5426958.6800000ug/l794.8400000
5/1/2010685.2227941.3300000ug/l672.5900000
6/1/2010835.1927891.5900000ug/l826.5400000
7/1/20101315.8919944.4500000ug/l1275.2500000
8/1/20101064.4427926.5400000ug/l1006.2500000
9/1/20101100.7827967.8400000ug/l1068.6200000
10/1/2010674.4127945.9900000ug/l657.1900000
11/1/2010724.3327952.5100000ug/l710.7700000
12/1/2010887.4127961.2100000ug/l843.2700000
1/1/2011690.2928856.9400000ug/l660.2400000
2/1/2011735.3727802.1000000ug/l703.1300000
3/1/20111970.3826947.0300000ug/l1919.6600000
4/1/2011994.70271000.4100000ug/l896.9500000
5/1/2011921.00271033.1900000ug/l886.7900000
6/1/2011925.15271039.4800000ug/l920.4500000
7/1/2011873.63271070.0400000ug/l802.3300000
8/1/2011880.29281094.1900000ug/l845.8500000
9/1/20111066.9226943.6200000ug/l1028.3800000
10/1/2011953.2928936.7100000ug/l930.9600000
11/1/2011621.4626886.7900000ug/l614.1900000
12/1/2011613.9327834.9200000ug/l600.5500000

Nitrogen, Nitrite + Nitrate as N

Units: ug/l Year
2011
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

      
1/1/2007228.0016228.0000000ug/l60.1800000
2/1/2007417.5016322.7500000ug/l301.5100000
3/1/2007149.0016264.8300000ug/l90.4200000
4/1/2007152.0016236.6300000ug/l110.2600000
5/1/200750.6916199.4400000ug/l16.9300000
6/1/2007100.1916182.9000000ug/l23.8500000
7/1/200785.1316159.0900000ug/l30.2300000
8/1/200760.621399.6100000ug/l45.2100000
9/1/2007165.8614102.4200000ug/l113.6800000
10/1/2007275.002122.9200000ug/l264.5800000
11/1/2007214.5714150.2300000ug/l141.1900000
12/1/2007243.0714174.0400000ug/l219.5300000
1/1/2008273.1414205.3800000ug/l233.7900000
2/1/2008163.3113222.4900000ug/l144.7900000
3/1/200884.2114208.8800000ug/l44.6100000
4/1/2008105.9213180.7000000ug/l70.7900000
5/1/200823.3813148.8400000ug/l12.4200000
6/1/200844.7218115.7800000ug/l17.2000000
7/1/200879.181783.4500000ug/l50.2600000
8/1/2008160.902183.0500000ug/l85.9300000
9/1/2008154.652094.7900000ug/l129.9500000
10/1/2008167.5917105.0700000ug/l125.9200000
11/1/2008177.449130.7500000ug/l113.4600000
12/1/2008153.899148.9400000ug/l132.8100000
1/1/2009131.789157.7100000ug/l88.6900000
2/1/2009125.009151.7300000ug/l60.2900000
3/1/2009107.1010143.8000000ug/l66.6100000
4/1/200945.008123.3700000ug/l28.3600000
5/1/20096.00194.8000000ug/l6.0000000
6/1/2009161.00995.9800000ug/l84.2700000
7/1/2009355.789133.3100000ug/l284.7700000
8/1/2009386.5012176.9000000ug/l311.7300000
9/1/2009429.789230.6800000ug/l305.7700000
10/1/2009469.6010301.4400000ug/l419.8600000
11/1/2009382.9111364.2600000ug/l339.2900000
12/1/2009502.2010421.1300000ug/l466.8900000
1/1/2010474.9627440.9900000ug/l434.6700000
2/1/2010498.1527459.6000000ug/l427.1900000
3/1/2010345.2528445.5100000ug/l232.0600000
4/1/2010301.5426417.5000000ug/l234.1500000
5/1/2010229.6327391.9600000ug/l169.1800000
6/1/2010217.5927344.5200000ug/l147.8300000
7/1/2010192.0019297.3600000ug/l171.2200000
8/1/2010207.7427248.9600000ug/l177.5100000
9/1/2010417.1527260.9400000ug/l378.4600000
10/1/2010307.8127261.9900000ug/l218.9400000
11/1/2010386.2627288.0900000ug/l244.8000000
12/1/2010455.7827327.7900000ug/l257.6800000
1/1/2011201.5728329.3900000ug/l108.7500000
2/1/2011259.8527338.0700000ug/l102.4900000
3/1/2011499.5826351.8100000ug/l451.7300000
4/1/2011401.7827367.4700000ug/l269.4400000
5/1/2011285.9627350.7500000ug/l212.0800000
6/1/2011107.3327292.6800000ug/l64.1000000
7/1/2011245.9627300.0800000ug/l181.0300000
8/1/2011258.1428299.7900000ug/l205.9900000
9/1/2011430.7326288.3200000ug/l403.0200000
10/1/2011332.7528276.8100000ug/l291.4700000
11/1/2011398.8526295.6300000ug/l325.8900000
12/1/2011316.1127330.4200000ug/l200.7300000

pH

Units: None Year
2011
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

      
1/1/20077.26177.2600000None7.2500000
2/1/20077.48167.3700000None7.4700000
3/1/20077.55167.4300000None7.5300000
4/1/20077.27167.3900000None7.2600000
5/1/20077.52167.4200000None7.5000000
6/1/20077.29177.4000000None7.2800000
7/1/20077.3027.4000000None7.3000000
8/1/20076.8337.2900000None6.8200000
9/1/20077.34157.2600000None7.3300000
10/1/20077.2637.2600000None7.2500000
11/1/20076.52137.0900000None6.4900000
12/1/20077.48137.1200000None7.4700000
1/1/20087.40147.1400000None7.4000000
2/1/20087.32137.2200000None7.3200000
3/1/20087.46157.2400000None7.4600000
4/1/20087.4067.2600000None7.3900000
5/1/20087.6767.4600000None7.6600000
6/1/20087.3877.4400000None7.3700000
7/1/20087.1557.4000000None7.1500000
8/1/20087.1867.3700000None7.1500000
9/1/20087.1527.3200000None7.1500000
11/1/20087.5987.2900000None7.5900000
12/1/20087.50107.3100000None7.4900000
1/1/20097.23107.3300000None7.2100000
2/1/20097.5897.4100000None7.5700000
3/1/20097.43137.4700000None7.4300000
4/1/20097.8597.5300000None7.8500000
5/1/20097.5367.5200000None7.5300000
6/1/20097.55137.5300000None7.5500000
7/1/20097.41107.5600000None7.4100000
8/1/20097.2567.5000000None7.2500000
9/1/20097.5897.5300000None7.5800000
10/1/20097.47117.4700000None7.4700000
11/1/20097.58127.4700000None7.5800000
12/1/20097.28117.4300000None7.2700000
1/1/20107.59287.4600000None7.5900000
2/1/20107.64287.5200000None7.6400000
3/1/20107.60307.5300000None7.6000000
4/1/20107.57267.5400000None7.5700000
5/1/20107.2527.4900000None7.2500000
6/1/20107.70257.5600000None7.7000000
7/1/20107.12127.4800000None7.1100000
8/1/20107.32227.4300000None7.3200000
9/1/20107.56197.4200000None7.5600000
10/1/20107.68147.4400000None7.6800000
11/1/20107.81207.5300000None7.8000000
12/1/20107.76197.5400000None7.7600000
1/1/20117.76277.6500000None7.7600000
2/1/20118.04287.7700000None8.0300000
3/1/20117.59267.7700000None7.5900000
4/1/20117.65257.7700000None7.6500000
5/1/20117.5027.7200000None7.5000000
6/1/20117.5027.6700000None7.5000000
7/1/20117.46287.6200000None7.4500000
8/1/20117.47307.5300000None7.4700000
9/1/20117.52267.5200000None7.5200000
10/1/20117.51307.4900000None7.5000000
11/1/20117.77237.5400000None7.7700000
12/1/20117.76287.5800000None7.7500000

Rainfall

Units: inches Year
2011
Historical
period of record
High 45.20 57.48
Mean 17.2755439735869
Low 7.46
No. of Samples 363 5,417

Five-year Rolling Average Graph

      
1/1/20072.06312.0600000inches2.0600000
2/1/20072.73282.7300000inches2.7300000
3/1/20070.20310.2000000inches0.2000000
4/1/20072.57292.5700000inches2.5700000
5/1/20070.00310.0000000inches0.0000000
6/1/20073.10303.1000000inches3.1000000
7/1/20075.62315.6200000inches5.6200000
8/1/20073.72313.7200000inches3.7200000
9/1/200710.043010.0400000inches10.0400000
10/1/20071.12221.1200000inches1.1200000
11/1/20070.71300.7100000inches0.7100000
12/1/20070.64310.6400000inches0.6400000
1/1/20082.97312.9700000inches2.9700000
2/1/20081.46291.4600000inches1.4600000
3/1/20082.07312.0700000inches2.0700000
4/1/20082.72302.7200000inches2.7200000
5/1/20082.99312.9900000inches2.9900000
6/1/20084.30304.3000000inches4.3000000
7/1/20088.74318.7400000inches8.7400000
8/1/20089.36319.3600000inches9.3600000
9/1/20084.47304.4700000inches4.4700000
10/1/20082.35312.3500000inches2.3500000
11/1/20080.50300.5000000inches0.5000000
12/1/20081.90311.9000000inches1.9000000
1/1/20091.52311.5200000inches1.5200000
2/1/20090.58280.5800000inches0.5800000
3/1/20091.11311.1100000inches1.1100000
4/1/20091.05301.0500000inches1.0500000
5/1/20095.67315.6700000inches5.6700000
6/1/20096.33306.3300000inches6.3300000
7/1/20098.09318.0900000inches8.0900000
8/1/200910.803110.8000000inches10.8000000
9/1/20099.83309.8300000inches9.8300000
10/1/20092.70312.7000000inches2.7000000
11/1/20094.46304.4600000inches4.4600000
12/1/20093.05313.0500000inches3.0500000
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
Target
inches
Threshold
inches

Salinity

Units: PSS Year
2011
Historical
period of record
High 0.50 19.24
Mean 0.29 0.32 0.7532
Low 0.05 0.00
No. of Samples 251 1,587

Five-year Rolling Average Graph

      
1/1/20070.33160.3300000PSS0.3300000
2/1/20070.33160.3300000PSS0.3300000
3/1/20070.37160.3400000PSS0.3600000
4/1/20070.27160.3300000PSS0.2400000
5/1/20071.58160.5800000PSS0.5100000
6/1/20070.40170.5500000PSS0.3900000
7/1/20070.2730.5400000PSS0.2600000
8/1/20070.2610.5300000PSS0.2600000
9/1/20070.32140.5200000PSS0.3100000
10/1/20070.3110.5200000PSS0.3100000
11/1/20070.37130.3200000PSS0.3700000
12/1/20070.37120.3200000PSS0.3600000
1/1/20080.41140.3400000PSS0.4000000
2/1/20080.33130.3500000PSS0.3200000
3/1/20080.37130.3600000PSS0.3600000
4/1/20080.3560.3700000PSS0.3500000
5/1/20080.4850.3900000PSS0.4800000
6/1/20081.8550.6300000PSS0.7400000
7/1/20080.3150.6200000PSS0.3000000
8/1/20080.3350.6200000PSS0.3300000
11/1/20080.4070.7200000PSS0.3900000
12/1/20080.3880.3600000PSS0.3700000
1/1/20090.3780.3700000PSS0.3600000
2/1/20090.4170.3900000PSS0.4000000
3/1/20090.4190.3900000PSS0.4000000
4/1/20090.5190.4100000PSS0.4500000
5/1/20096.0541.3600000PSS2.4200000
6/1/20091.76111.5900000PSS0.7000000
7/1/20090.3181.5800000PSS0.3100000
8/1/20090.2721.5500000PSS0.2600000
9/1/20090.3491.5400000PSS0.3300000
10/1/20090.3691.5200000PSS0.3500000
11/1/20090.47100.5900000PSS0.4100000
12/1/20090.3190.3400000PSS0.3100000
1/1/20100.32260.3500000PSS0.3200000
2/1/20100.31260.3500000PSS0.3000000
3/1/20100.34260.3500000PSS0.3300000
4/1/20100.34260.3500000PSS0.3400000
6/1/20100.37230.3400000PSS0.3600000
7/1/20100.27100.3300000PSS0.2700000
8/1/20100.25200.3100000PSS0.2400000
9/1/20100.28170.3000000PSS0.2700000
10/1/20100.30140.2900000PSS0.3500000
11/1/20100.34180.3000000PSS0.3300000
12/1/20100.31170.2900000PSS0.3000000
1/1/20110.36230.3100000PSS0.3500000
2/1/20110.34260.3200000PSS0.3300000
3/1/20110.15260.3000000PSS0.1300000
4/1/20110.35230.3100000PSS0.3500000
7/1/20110.31260.2900000PSS0.3000000
8/1/20110.26260.2700000PSS0.2500000
9/1/20110.29260.3000000PSS0.2900000
10/1/20110.30260.2900000PSS0.3000000
11/1/20110.35230.3000000PSS0.3400000
12/1/20110.40260.3200000PSS0.3900000

Specific conductance

Units: umho Year
2011
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

      
1/1/2007625.3519625.3500000umho456.0200000
2/1/2007676.8817651.1200000umho672.6000000
3/1/2007645.4818649.2400000umho339.5100000
4/1/2007620.1118641.9600000umho597.1600000
5/1/20072501.50181013.8600000umho994.5000000
6/1/2007765.7819972.5200000umho550.6200000
7/1/2007663.836978.9300000umho652.2400000
8/1/2007592.504964.8700000umho591.1600000
9/1/2007641.9116964.2700000umho433.6500000
10/1/2007493.164943.1100000umho116.3800000
11/1/20071587.2015790.7300000umho990.0700000
12/1/2007660.5015773.1800000umho295.9100000
1/1/2008689.9816777.5400000umho340.4500000
2/1/2008684.0015792.7900000umho670.5000000
3/1/2008771.8817814.4500000umho757.1600000
4/1/2008720.336852.3200000umho715.3300000
5/1/2008927.717742.4000000umho918.8100000
6/1/2008629.719737.2700000umho475.7700000
7/1/2008633.005727.7700000umho629.9700000
8/1/2008689.437728.6800000umho685.3500000
9/1/2008566.605694.4600000umho566.5100000
11/1/2008790.449661.8400000umho783.7200000
12/1/2008762.3611688.3700000umho754.7400000
1/1/2009758.7311713.5100000umho746.9200000
2/1/2009810.9010737.8100000umho801.5400000
3/1/2009833.6015791.2100000umho825.7600000
4/1/20091017.229828.8800000umho913.3700000
5/1/20096336.7171753.2500000umho2404.8000000
6/1/20092327.36142014.0900000umho39.3500000
7/1/2009648.82111995.7700000umho642.9500000
8/1/2009564.5081954.7000000umho563.3600000
9/1/2009696.0091931.7700000umho686.1600000
10/1/2009729.08121883.7500000umho721.6400000
11/1/2009901.1513977.8200000umho807.7700000
12/1/2009653.8312698.9000000umho648.7200000
1/1/2010657.1429700.2800000umho651.0300000
2/1/2010643.9029713.5200000umho629.3700000
3/1/2010671.9132709.5000000umho651.9300000
4/1/2010704.0426705.3300000umho693.4400000
5/1/2010665.673666.0800000umho665.6700000
6/1/2010752.8126682.5800000umho737.0200000
7/1/2010562.6213666.8300000umho559.6300000
8/1/2010526.8323647.3100000umho511.2800000
9/1/201098.9420551.8200000umho1.6500000
10/1/2010727.6715555.7600000umho714.1800000
11/1/2010711.9021563.4600000umho701.0900000
12/1/2010657.8520547.6400000umho639.9200000
1/1/2011744.7929578.0000000umho735.3600000
2/1/2011708.2429608.2300000umho689.5500000
3/1/2011311.6526643.6800000umho279.6400000
4/1/2011717.3526641.9600000umho705.6700000
5/1/2011711.673641.9300000umho711.6100000
6/1/2011773.673661.2300000umho773.3900000
7/1/2011625.3129641.3200000umho606.3000000
8/1/2011540.0032613.2800000umho524.3500000
9/1/2011601.2726661.5500000umho599.3700000
10/1/2011635.7232647.9400000umho629.4800000
11/1/2011722.6123649.7600000umho706.1600000
12/1/2011808.2129655.5200000umho798.5100000

Temperature, water

Units: deg F Year
2011
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

      
1/1/200763.991763.9900000deg F63.9100000
2/1/200762.221663.1100000deg F62.0300000
3/1/200766.531664.2500000deg F66.4700000
4/1/200772.841666.4000000deg F72.8200000
5/1/200771.311667.3800000deg F71.1500000
6/1/200779.081769.3300000deg F79.0500000
7/1/200783.12572.5200000deg F83.0900000
8/1/200781.11275.6700000deg F81.1100000
9/1/200781.231378.1200000deg F81.1800000
10/1/200779.26379.1900000deg F79.2600000
11/1/200768.851378.7800000deg F68.8200000
12/1/200770.291377.3100000deg F70.2500000
1/1/200864.211474.1600000deg F64.0600000
2/1/200862.761471.1000000deg F62.6300000
3/1/200866.361468.6200000deg F66.0200000
4/1/200872.02667.4200000deg F72.0000000
5/1/200875.28668.4900000deg F75.2600000
6/1/200883.90770.7600000deg F83.7800000
7/1/200880.70573.5000000deg F80.6900000
8/1/200883.20676.9100000deg F83.1600000
9/1/200881.08379.3600000deg F81.0300000
11/1/200872.82880.3400000deg F72.7900000
12/1/200866.641076.8900000deg F66.6000000
1/1/200952.841071.3200000deg F52.3700000
2/1/200965.09967.6900000deg F65.0100000
3/1/200968.011365.0800000deg F67.8700000
4/1/200972.74966.3600000deg F72.6300000
5/1/200981.03667.7300000deg F80.9600000
6/1/200982.621370.3900000deg F82.5400000
7/1/200981.371075.1400000deg F81.3400000
8/1/200983.66678.2400000deg F83.6600000
9/1/200980.13980.2600000deg F80.0900000
10/1/200979.341181.3600000deg F79.2600000
11/1/200974.331280.2400000deg F74.3200000
12/1/200970.631178.2400000deg F70.5700000
1/1/201064.992075.5100000deg F64.8000000
2/1/201057.102071.0900000deg F57.0700000
3/1/201066.822268.8700000deg F66.7000000
4/1/201072.351867.7000000deg F72.2900000
5/1/201079.43268.5500000deg F79.4300000
6/1/201082.121870.4700000deg F82.0700000
7/1/201080.821273.1100000deg F80.8100000
8/1/201084.021677.5900000deg F83.9800000
9/1/201081.971480.1200000deg F81.9400000
10/1/201073.231080.2700000deg F73.2100000
11/1/201065.651477.9700000deg F65.4500000
12/1/201055.561473.5400000deg F55.4400000
1/1/201154.442069.1500000deg F54.0700000
2/1/201165.442066.0500000deg F65.2100000
3/1/201164.991863.2200000deg F64.9800000
4/1/201173.691863.3000000deg F73.5600000
5/1/201176.82265.1600000deg F76.8200000
6/1/201181.59269.5000000deg F81.5900000
7/1/201182.352074.1500000deg F82.3200000
8/1/201181.882276.8900000deg F81.8700000
9/1/201183.001879.8900000deg F82.9700000
10/1/201177.782280.5700000deg F77.6900000
11/1/201173.721680.0500000deg F73.6600000
12/1/201168.392077.8500000deg F68.3400000

Turbidity

Units: NTU Year
2011
Historical
period of record
High 44.00 112.00
Mean 3.82 3.97 7.12764
Low 0.80 0.091
No. of Samples 324 2,084

Five-year Rolling Average Graph

      
1/1/20074.36174.3600000NTU3.9800000
2/1/20073.79174.0800000NTU3.5400000
3/1/20073.32173.8200000NTU2.5900000
4/1/20072.81173.5700000NTU2.5100000
5/1/20072.81173.4200000NTU2.1400000
6/1/20074.05183.5200000NTU2.2700000
7/1/20073.68173.4100000NTU2.8800000
8/1/20075.30143.6600000NTU3.8900000
9/1/20074.74153.9000000NTU3.4400000
10/1/200711.4025.3300000NTU8.5000000
11/1/20073.07155.3700000NTU2.7600000
12/1/20074.97155.5300000NTU3.1800000
1/1/20083.32155.4700000NTU2.8000000
2/1/20084.01145.2500000NTU3.1900000
3/1/20083.08154.9800000NTU2.4800000
4/1/20084.09143.7600000NTU3.5400000
5/1/20084.53144.0000000NTU3.2100000
6/1/20085.73194.1300000NTU3.4200000
7/1/20085.29184.4600000NTU3.9900000
8/1/20085.02214.6200000NTU4.5400000
9/1/20085.43205.0200000NTU5.0700000
10/1/20084.53175.0900000NTU3.8400000
11/1/20084.5195.0900000NTU3.0000000
12/1/20086.3095.1800000NTU3.1500000
1/1/20092.8694.7800000NTU2.5100000
2/1/20092.7394.3900000NTU2.1300000
3/1/20093.57104.0800000NTU3.1000000
4/1/20093.1283.8500000NTU2.6600000
5/1/20091.2013.3000000NTU1.2000000
6/1/20092.7992.7100000NTU2.4100000
7/1/20094.6193.0000000NTU3.6400000
8/1/20097.17103.7400000NTU5.2700000
9/1/20093.9283.8000000NTU3.4700000
10/1/20095.6494.2200000NTU4.9000000
11/1/20093.2894.5700000NTU3.0400000
12/1/20095.7395.0600000NTU5.2100000
1/1/20104.68275.0700000NTU4.3700000
2/1/201012.14275.9000000NTU7.0600000
3/1/20104.65286.0200000NTU4.0700000
4/1/20105.45265.9900000NTU4.9600000
5/1/20104.96276.2700000NTU3.2800000
6/1/20103.28275.8600000NTU2.8600000
7/1/201010.31196.8000000NTU8.9200000
8/1/20107.32276.0000000NTU5.9700000
9/1/20106.92276.3700000NTU5.8100000
10/1/20103.57276.0600000NTU3.3200000
11/1/20102.77275.7000000NTU2.3800000
12/1/20104.49275.9000000NTU3.6700000
1/1/20114.10284.8600000NTU3.7500000
2/1/20112.84274.1200000NTU2.5800000
3/1/201120.42266.3700000NTU16.8000000
4/1/20115.09276.6200000NTU4.5600000
5/1/20113.33276.7100000NTU2.9500000
6/1/20113.29276.5100000NTU2.9800000
7/1/20113.90276.4800000NTU3.3500000
8/1/20113.74286.6300000NTU3.3000000
9/1/20116.05264.2300000NTU5.2600000
10/1/20114.59284.1500000NTU4.3200000
11/1/20112.85264.0700000NTU2.6500000
12/1/20112.52273.9400000NTU2.3600000
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
2011
Historical
period of record
High 0.0 0.1
Mean 0.0062 0.0077 0.01066002
Low 0.0003 0.0003
No. of Samples 36 161

Five-year Rolling Average Graph

     
1/1/20074.6620.0046600mg/l0.0046400
2/1/20071.4920.0030800mg/l0.0014800
3/1/20072.3420.0028300mg/l0.0022100
4/1/20073.0720.0028900mg/l0.0030600
5/1/20072.5720.0028300mg/l0.0025400
6/1/200716.3320.0050800mg/l0.0111100
7/1/200742.9020.0114500mg/l0.0428500
8/1/200716.8620.0140100mg/l0.0145400
9/1/200756.7520.0230800mg/l0.0377800
11/1/200713.5020.0292700mg/l0.0134500
12/1/200715.7520.0291500mg/l0.0157000
1/1/20087.2620.0220200mg/l0.0069500
2/1/20083.1220.0192800mg/l0.0031100
3/1/20083.5020.0086300mg/l0.0034200
4/1/20084.0920.0078700mg/l0.0040800
5/1/20087.6620.0069000mg/l0.0054900
6/1/200818.6220.0073800mg/l0.0141700
7/1/200817.8520.0091400mg/l0.0177600
8/1/200818.0520.0116300mg/l0.0177200
9/1/200819.4520.0142900mg/l0.0194000
10/1/200822.7020.0173900mg/l0.0227000
11/1/200816.7010.0189000mg/l0.0167000
1/1/20092.9010.0159600mg/l0.0029000
2/1/20091.5610.0126600mg/l0.0015600
3/1/20098.4710.0104700mg/l0.0084700
4/1/20094.6110.0068500mg/l0.0046100
6/1/200919.0010.0073100mg/l0.0190000
7/1/200921.5010.0110300mg/l0.0215000
8/1/200918.8010.0144800mg/l0.0188000
9/1/20098.9910.0145800mg/l0.0089900
10/1/200926.6010.0189800mg/l0.0266000
11/1/20094.1910.0165100mg/l0.0041900
12/1/20097.1310.0145400mg/l0.0071300
1/1/20108.6830.0124000mg/l0.0086800
2/1/20106.5320.0103500mg/l0.0065300
3/1/20103.3430.0094100mg/l0.0033400
4/1/20107.4730.0062200mg/l0.0074700
5/1/201027.2030.0100600mg/l0.0272000
6/1/20106.8730.0100200mg/l0.0068700
7/1/201012.6020.0106700mg/l0.0126000
8/1/201017.5030.0125000mg/l0.0175000
9/1/201010.7030.0137200mg/l0.0107000
10/1/20105.0330.0133200mg/l0.0050300
11/1/20107.6330.0100600mg/l0.0076300
12/1/20102.8730.0093900mg/l0.0028700
1/1/20110.2530.0073300mg/l0.0002500
2/1/20115.5730.0053400mg/l0.0055700
3/1/20114.8130.0043600mg/l0.0048100
4/1/20118.8430.0050000mg/l0.0088400
5/1/20115.7930.0046900mg/l0.0057900
6/1/20117.9130.0055300mg/l0.0079100
7/1/201119.4030.0087200mg/l0.0194000
8/1/20119.5330.0093800mg/l0.0095300
9/1/201113.4030.0108100mg/l0.0134000
10/1/20116.5930.0104400mg/l0.0065900
11/1/20119.0330.0109800mg/l0.0090300
12/1/20118.4430.0110700mg/l0.0084400
Target
mg/l
Threshold
0.011 mg/l
Pass

Nitrogen, Total

Trend analysis shows a weak decreasing trend.
Score: Pass
Units: mg/l Year
2011
Historical
period of record
High 1.8 8.9
Mean 0.86 1.0515 1.60538449
Low 0.645 0.131
No. of Samples 12 172

Five-year Rolling Average Graph

     
1/1/20071047.0021.0470000mg/l1.0449800
2/1/2007953.0021.0000000mg/l0.9515800
3/1/2007514.0020.8380000mg/l0.4956800
4/1/2007457.5020.7428800mg/l0.4265200
5/1/2007501.5020.6946000mg/l0.4694100
6/1/2007444.5020.6529200mg/l0.3151200
7/1/2007975.5020.6410000mg/l0.9645900
8/1/2007745.5020.6064200mg/l0.7454700
9/1/2007643.0020.6279200mg/l0.5230400
11/1/2007361.5020.6340000mg/l0.3492000
12/1/2007752.5020.6956000mg/l0.7349700
1/1/2008703.0020.6411000mg/l0.6689900
2/1/2008784.0020.6488000mg/l0.7769400
3/1/2008365.0020.5932000mg/l0.3473900
4/1/2008588.0020.5923300mg/l0.5092200
5/1/2008372.0020.5940800mg/l0.3599300
6/1/2008618.0020.5716700mg/l0.5478400
7/1/20081055.5020.6304200mg/l1.0552800
8/1/2008860.0020.6430800mg/l0.8468200
9/1/20081008.5020.7503300mg/l1.0071800
10/1/2008702.0020.7693300mg/l0.6283600
11/1/2008301.0010.7575000mg/l0.3010000
1/1/2009355.0010.6453000mg/l0.3550000
2/1/20091002.0010.6737000mg/l1.0020000
3/1/2009281.0010.5282000mg/l0.2810000
4/1/2009521.0010.4920000mg/l0.5210000
6/1/2009636.0010.5590000mg/l0.6360000
7/1/20091089.0010.7058000mg/l1.0890000
8/1/2009849.0010.6752000mg/l0.8490000
9/1/2009555.0010.7300000mg/l0.5550000
10/1/2009880.0010.8018000mg/l0.8800000
11/1/2009647.0010.7760000mg/l0.6470000
12/1/20091415.0010.9058300mg/l1.4150000
1/1/20101185.0010.9218300mg/l1.1850000
3/1/2010687.0010.9628000mg/l0.6870000
4/1/2010720.0010.9308000mg/l0.7200000
5/1/2010823.0010.9660000mg/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
Pass

Phosphorus, Total

Trend analysis shows a weak decreasing trend.
Score: Pass
Units: mg/l Year
2011
Historical
period of record
High 0.5 2.2
Mean 0.2836 0.326 0.27141542
Low 0.194 0.084
No. of Samples 36 230

Five-year Rolling Average Graph

     
1/1/2007244.0020.2440000mg/l0.2403600
2/1/2007232.5020.2382500mg/l0.2323100
3/1/2007233.0020.2365000mg/l0.2246000
4/1/2007239.5020.2372500mg/l0.2295000
5/1/2007374.5020.2647000mg/l0.3442300
6/1/2007348.0020.2785800mg/l0.2752000
7/1/2007640.5020.3446700mg/l0.6086400
8/1/2007348.5020.3640000mg/l0.3449700
9/1/2007344.0020.3825000mg/l0.3172500
11/1/2007219.0020.3800000mg/l0.2149300
12/1/2007246.5020.3597000mg/l0.2367900
1/1/2008192.0020.2700000mg/l0.1820500
2/1/2008243.0020.2489000mg/l0.2401700
3/1/2008208.5020.2218000mg/l0.1694400
4/1/2008277.0020.2310000mg/l0.2217500
5/1/2008291.0020.2430000mg/l0.2045300
6/1/20081115.5020.3878300mg/l0.8216300
7/1/2008392.5020.4212500mg/l0.3924700
8/1/2008291.5020.4293300mg/l0.2861700
9/1/2008313.5020.4468300mg/l0.3133200
10/1/2008298.5020.4504200mg/l0.2859900
11/1/2008142.0010.4255800mg/l0.1420000
1/1/2009194.0010.2479000mg/l0.1940000
2/1/2009250.0010.2396000mg/l0.2500000
3/1/2009244.0010.2257000mg/l0.2440000
4/1/2009180.0010.2020000mg/l0.1800000
6/1/2009251.0010.2238000mg/l0.2510000
7/1/2009361.0010.2572000mg/l0.3610000
8/1/2009319.0010.2710000mg/l0.3190000
9/1/2009220.0010.2662000mg/l0.2200000
10/1/2009259.0010.2820000mg/l0.2590000
11/1/2009107.0010.2528300mg/l0.1070000
12/1/2009251.0010.2528300mg/l0.2510000
1/1/2010210.0030.2276700mg/l0.2100000
2/1/2010214.0020.2101700mg/l0.2140000
3/1/2010135.0030.1960000mg/l0.1350000
4/1/2010268.0030.1975000mg/l0.2680000
5/1/2010408.0030.2476700mg/l0.4080000
6/1/2010352.0030.2645000mg/l0.3520000
7/1/2010367.0020.2906700mg/l0.3670000
8/1/2010433.0030.3271700mg/l0.4330000
9/1/2010372.0030.3666700mg/l0.3720000
10/1/2010189.0030.3535000mg/l0.1890000
11/1/2010184.0030.3161700mg/l0.1840000
12/1/2010183.0030.2880000mg/l0.1830000
1/1/2011251.0030.2686700mg/l0.2510000
2/1/2011197.0030.2293300mg/l0.1970000
3/1/2011370.0030.2290000mg/l0.3700000
4/1/2011327.0030.2520000mg/l0.3270000
5/1/2011308.0030.2726700mg/l0.3080000
6/1/2011212.0030.2775000mg/l0.2120000
7/1/2011408.0030.3036700mg/l0.4080000
8/1/2011379.0030.3340000mg/l0.3790000
9/1/2011476.0030.3516700mg/l0.4760000
10/1/2011234.0030.3361700mg/l0.2340000
11/1/2011194.0030.3171700mg/l0.1940000
12/1/2011207.0030.3163300mg/l0.2070000
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
2011
Historical
period of record
High 129.5 210.0
Mean 70.01 67.49 22.68844
Low 32.80 26.80
No. of Samples 29 232

Five-year Rolling Average Graph

     
1/1/200777.05277.0500000percent (%)76.7100000
2/1/2007103.90290.4800000percent (%)102.8100000
3/1/200765.10282.0200000percent (%)64.0900000
4/1/200759.65276.4300000percent (%)58.3600000
5/1/200757.95272.7300000percent (%)54.4400000
6/1/200762.00270.9400000percent (%)61.9300000
9/1/2007101.15270.1900000percent (%)101.1500000
11/1/2007157.352106.8300000percent (%)155.6700000
12/1/200757.202105.2300000percent (%)56.6400000
1/1/2008101.402104.2800000percent (%)101.3800000
2/1/200883.552100.1300000percent (%)83.5400000
3/1/200856.65291.2300000percent (%)54.3300000
11/1/200875.00175.0000000percent (%)75.0000000
1/1/200992.00183.5000000percent (%)92.0000000
2/1/200967.20178.0700000percent (%)67.2000000
3/1/200957.50172.9300000percent (%)57.5000000
4/1/200971.60172.6600000percent (%)71.6000000
6/1/200964.70170.6000000percent (%)64.7000000
7/1/200941.10160.4200000percent (%)41.1000000
9/1/2009210.00196.8500000percent (%)210.0000000
10/1/200926.80185.6500000percent (%)26.8000000
12/1/200957.60183.8800000percent (%)57.6000000
1/1/201087.80395.5500000percent (%)87.8000000
2/1/201085.20293.4800000percent (%)85.2000000
3/1/201097.10370.9000000percent (%)97.1000000
4/1/201068.30379.2000000percent (%)68.3000000
6/1/201082.80384.2400000percent (%)82.8000000
7/1/201049.40276.5600000percent (%)49.4000000
8/1/201061.13871.7500000percent (%)61.1300000
9/1/201059.10364.1500000percent (%)59.1000000
10/1/201084.40367.3700000percent (%)84.4000000
12/1/201095.50369.9100000percent (%)95.5000000
2/1/201174.13878.2800000percent (%)74.1300000
3/1/201147.60375.4100000percent (%)47.6000000
4/1/201185.50375.6800000percent (%)85.5000000
7/1/201171.00369.5600000percent (%)71.0000000
8/1/201132.80359.2300000percent (%)32.8000000
9/1/201171.60365.2300000percent (%)71.6000000
10/1/2011129.50376.2300000percent (%)129.5000000
11/1/201180.60377.1000000percent (%)80.6000000
Target
percent (%)
Threshold
56.00 percent (%)

BOD, Biochemical oxygen demand

Units: mg/l Year
2011
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

     
1/1/20070.6320.6300000mg/l0.6100000
2/1/20070.7220.6800000mg/l0.7200000
3/1/20070.9620.7700000mg/l0.9300000
4/1/20071.7921.0300000mg/l1.7600000
5/1/20072.0521.2300000mg/l2.0000000
6/1/20072.5821.4600000mg/l2.4000000
7/1/20074.1522.0400000mg/l4.1100000
8/1/20072.1122.2700000mg/l2.1000000
9/1/20074.6822.8900000mg/l4.0000000
11/1/20072.1023.1200000mg/l2.0000000
12/1/20072.3123.0700000mg/l2.2800000
2/1/20080.8322.4800000mg/l0.8200000
3/1/20080.9721.5500000mg/l0.9600000
4/1/20081.0621.4500000mg/l1.0300000
5/1/20082.2221.4800000mg/l2.0800000
6/1/20082.2121.4600000mg/l2.2000000
7/1/20081.6021.4800000mg/l1.5900000
8/1/20081.8621.6500000mg/l1.7900000
9/1/20081.5521.7500000mg/l1.5400000
10/1/20081.6321.8500000mg/l1.6000000
11/1/20081.9611.8000000mg/l1.9600000
1/1/20091.1711.6300000mg/l1.1700000
2/1/20090.8311.4300000mg/l0.8300000
3/1/20091.7811.4700000mg/l1.7800000
4/1/20091.3211.4100000mg/l1.3200000
6/1/20092.6111.5400000mg/l2.6100000
7/1/20091.1411.5400000mg/l1.1400000
8/1/20091.7611.7200000mg/l1.7600000
9/1/20091.5111.6700000mg/l1.5100000
10/1/20091.7311.7500000mg/l1.7300000
11/1/20091.4911.7100000mg/l1.4900000
12/1/20090.9011.4200000mg/l0.9000000
1/1/20101.0631.4100000mg/l1.0600000
2/1/20101.2321.3200000mg/l1.2300000
3/1/20101.3831.3000000mg/l1.3800000
4/1/20101.9331.3300000mg/l1.9300000
5/1/20104.5031.8300000mg/l4.5000000
6/1/20102.1432.0400000mg/l2.1400000
7/1/20101.9922.2000000mg/l1.9900000
8/1/20101.8532.3000000mg/l1.8500000
9/1/20100.9132.2200000mg/l0.9100000
10/1/20101.6232.1700000mg/l1.6200000
11/1/20101.6031.6900000mg/l1.6000000
12/1/20101.2931.5400000mg/l1.2900000
1/1/20111.3831.4400000mg/l1.3800000
2/1/20111.4631.3800000mg/l1.4600000
3/1/20112.7931.6900000mg/l2.7900000
4/1/20111.6731.7000000mg/l1.6700000
5/1/20111.7731.7300000mg/l1.7700000
6/1/20111.6411.7900000mg/l1.6400000
7/1/20112.0031.8900000mg/l2.0000000
8/1/20111.4231.8800000mg/l1.4200000
9/1/20112.2131.7900000mg/l2.2100000
10/1/20111.3131.7300000mg/l1.3100000
11/1/20111.8131.7300000mg/l1.8100000
12/1/20111.8631.7700000mg/l1.8600000

Color

Units: PCU Year
2011
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

     

Enterococcus Group Bacteria

Units: cfu/100ml Year
2011
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

     
Target
cfu/100ml
Threshold
cfu/100ml

Nitrogen, Ammonia + Ammonium as N

Units: ug/l Year
2011
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

     
1/1/2007133.502133.5000000ug/l131.9200000
2/1/2007137.002135.2500000ug/l136.9700000
3/1/2007131.002133.8300000ug/l107.4100000
4/1/2007160.502140.5000000ug/l156.5200000
5/1/2007138.002140.0000000ug/l136.3900000
6/1/2007104.002134.0000000ug/l103.8800000
7/1/2007100.002128.4200000ug/l98.8700000
8/1/200791.002120.7500000ug/l89.7600000
9/1/2007505.502183.1700000ug/l249.7400000
11/1/2007104.502181.0000000ug/l98.6400000
12/1/2007113.002182.8000000ug/l112.2500000
1/1/200883.502179.5000000ug/l83.4600000
2/1/2008149.002191.1000000ug/l149.0000000
3/1/200837.50297.5000000ug/l37.2300000
4/1/200844.00288.5800000ug/l20.3700000
5/1/200880.50284.5800000ug/l72.2500000
6/1/2008134.00288.0800000ug/l117.1800000
7/1/2008279.002120.6700000ug/l251.4000000
8/1/2008142.502119.5800000ug/l108.4000000
9/1/2008107.502131.2500000ug/l107.4700000
10/1/2008167.502151.8300000ug/l163.2500000
11/1/2008214.001174.0800000ug/l214.0000000
1/1/2009156.001157.5000000ug/l156.0000000
2/1/2009176.001164.2000000ug/l176.0000000
3/1/2009158.001174.3000000ug/l158.0000000
4/1/2009427.001226.2000000ug/l427.0000000
6/1/2009116.001206.6000000ug/l116.0000000
7/1/2009157.001206.8000000ug/l157.0000000
8/1/2009234.001218.4000000ug/l234.0000000
9/1/2009139.001214.6000000ug/l139.0000000
10/1/2009220.001173.2000000ug/l220.0000000
11/1/2009168.001172.3300000ug/l168.0000000
12/1/2009201.001186.5000000ug/l201.0000000
1/1/2010137.003183.1700000ug/l137.0000000
2/1/2010173.002173.0000000ug/l173.0000000
3/1/201021.003153.3300000ug/l21.0000000
4/1/2010223.003153.8300000ug/l223.0000000
5/1/2010280.003172.5000000ug/l280.0000000
6/1/201024.003143.0000000ug/l24.0000000
7/1/2010135.002142.6700000ug/l135.0000000
8/1/2010155.003139.6700000ug/l155.0000000
9/1/2010156.003162.1700000ug/l156.0000000
10/1/201024.003129.0000000ug/l24.0000000
11/1/201024.00386.3300000ug/l24.0000000
12/1/201047.00390.1700000ug/l47.0000000
1/1/2011310.003119.3300000ug/l310.0000000
2/1/2011173.003122.3300000ug/l173.0000000
3/1/201192.003111.6700000ug/l92.0000000
4/1/2011116.003127.0000000ug/l116.0000000
5/1/201174.003135.3300000ug/l74.0000000
6/1/2011174.003156.5000000ug/l174.0000000
7/1/20118.003106.1700000ug/l8.0000000
8/1/201173.00389.5000000ug/l73.0000000
9/1/2011115.00393.3300000ug/l115.0000000
10/1/201156.00383.3300000ug/l56.0000000
11/1/2011121.00391.1700000ug/l121.0000000
12/1/2011153.00387.6700000ug/l153.0000000

Nitrogen, Kjeldahl

Units: ug/l Year
2011
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

     
1/1/2007875.502875.5000000ug/l875.4800000
2/1/2007700.502788.0000000ug/l700.1100000
3/1/2007507.502694.5000000ug/l488.2400000
4/1/2007381.002616.1300000ug/l354.7400000
5/1/2007487.502590.4000000ug/l457.8200000
6/1/2007440.502565.4200000ug/l309.4500000
7/1/2007948.002577.5000000ug/l940.1200000
8/1/2007644.002568.0800000ug/l642.3600000
9/1/2007604.002584.1700000ug/l499.8900000
11/1/2007294.002586.1000000ug/l291.6600000
12/1/2007697.502637.5000000ug/l686.4800000
1/1/2008639.002575.7000000ug/l613.1200000
2/1/2008661.502579.2000000ug/l656.2100000
3/1/2008361.002530.6000000ug/l343.1900000
4/1/2008555.502534.7500000ug/l487.9400000
5/1/2008368.002547.0800000ug/l355.7900000
6/1/2008614.002533.1700000ug/l543.3200000
7/1/20081020.002596.6700000ug/l1019.8000000
8/1/2008832.002625.0800000ug/l822.4000000
9/1/2008934.002720.5800000ug/l932.8200000
10/1/2008661.502738.2500000ug/l593.3200000
11/1/2008297.001726.4200000ug/l297.0000000
1/1/2009350.001614.9000000ug/l350.0000000
2/1/2009777.001603.9000000ug/l777.0000000
3/1/2009277.001472.5000000ug/l277.0000000
4/1/2009501.001440.4000000ug/l501.0000000
6/1/2009632.001507.4000000ug/l632.0000000
7/1/2009966.001630.6000000ug/l966.0000000
8/1/2009741.001623.4000000ug/l741.0000000
9/1/2009499.001667.8000000ug/l499.0000000
10/1/2009753.001718.2000000ug/l753.0000000
11/1/2009611.001700.3300000ug/l611.0000000
12/1/20091040.001768.3300000ug/l1040.0000000
1/1/2010906.003758.3300000ug/l906.0000000
2/1/2010874.002780.5000000ug/l874.0000000
3/1/2010617.003800.1700000ug/l617.0000000
4/1/2010678.003787.6700000ug/l678.0000000
5/1/2010793.003818.0000000ug/l793.0000000
6/1/2010729.003766.1700000ug/l729.0000000
7/1/20101180.002811.8300000ug/l1180.0000000
8/1/20101090.003847.8300000ug/l1090.0000000
9/1/20101060.003921.6700000ug/l1060.0000000
10/1/2010705.003926.1700000ug/l705.0000000
11/1/2010679.003907.1700000ug/l679.0000000
12/1/2010549.003877.1700000ug/l549.0000000
1/1/2011840.003820.5000000ug/l840.0000000
2/1/2011671.003750.6700000ug/l671.0000000
3/1/2011797.003706.8300000ug/l797.0000000
4/1/2011785.003720.1700000ug/l785.0000000
5/1/2011698.003723.3300000ug/l698.0000000
6/1/2011592.003730.5000000ug/l592.0000000
7/1/2011675.003703.0000000ug/l675.0000000
8/1/2011834.003730.1700000ug/l834.0000000
9/1/20111440.003837.3300000ug/l1440.0000000
10/1/2011874.003852.1700000ug/l874.0000000
11/1/2011604.003836.5000000ug/l604.0000000
12/1/2011685.003852.0000000ug/l685.0000000

Nitrogen, Nitrite + Nitrate as N

Units: ug/l Year
2011
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

     
1/1/2007171.502171.5000000ug/l160.8500000
2/1/2007252.502212.0000000ug/l250.8900000
3/1/20076.502143.5000000ug/l6.0000000
4/1/200776.502126.7500000ug/l71.7600000
5/1/200714.002104.2000000ug/l10.7200000
6/1/20074.00287.5000000ug/l4.0000000
7/1/200727.50263.5000000ug/l14.2800000
8/1/2007101.50238.3300000ug/l93.5000000
9/1/200739.00243.7500000ug/l17.2000000
11/1/200767.50247.9000000ug/l36.9300000
12/1/200755.00258.1000000ug/l39.7600000
1/1/200864.00265.4000000ug/l52.9200000
2/1/2008122.50269.6000000ug/l120.6000000
3/1/20084.00262.6000000ug/l4.0000000
4/1/200832.50257.5800000ug/l15.6200000
5/1/20084.00247.0000000ug/l4.0000000
6/1/20084.00238.5000000ug/l4.0000000
7/1/200835.50233.7500000ug/l35.4700000
8/1/200828.00218.0000000ug/l14.4200000
9/1/200874.50229.7500000ug/l74.3600000
10/1/200840.50231.0800000ug/l34.9300000
11/1/20084.00131.0800000ug/l4.0000000
1/1/20095.00130.4000000ug/l5.0000000
2/1/2009225.00169.8000000ug/l225.0000000
3/1/20094.00155.7000000ug/l4.0000000
4/1/200920.00151.6000000ug/l20.0000000
6/1/20094.00151.6000000ug/l4.0000000
7/1/2009123.00175.2000000ug/l123.0000000
8/1/2009108.00151.8000000ug/l108.0000000
9/1/200956.00162.2000000ug/l56.0000000
10/1/2009127.00183.6000000ug/l127.0000000
11/1/200936.00175.6700000ug/l36.0000000
12/1/2009375.001137.5000000ug/l375.0000000
1/1/2010279.003163.5000000ug/l279.0000000
2/1/2010310.002197.1700000ug/l310.0000000
3/1/201070.003199.5000000ug/l70.0000000
4/1/201042.003185.3300000ug/l42.0000000
5/1/201030.003184.3300000ug/l30.0000000
6/1/201017.003124.6700000ug/l17.0000000
7/1/2010153.002103.6700000ug/l153.0000000
8/1/2010140.00375.3300000ug/l140.0000000
9/1/2010322.003117.3300000ug/l322.0000000
10/1/201030.003115.3300000ug/l30.0000000
11/1/201033.003115.8300000ug/l33.0000000
12/1/201046.003120.6700000ug/l46.0000000
1/1/201174.003107.5000000ug/l74.0000000
2/1/201155.00393.3300000ug/l55.0000000
3/1/2011138.00362.6700000ug/l138.0000000
4/1/2011118.00377.3300000ug/l118.0000000
5/1/201159.00381.6700000ug/l59.0000000
6/1/2011104.00391.3300000ug/l104.0000000
7/1/201115.00381.5000000ug/l15.0000000
8/1/201180.00385.6700000ug/l80.0000000
9/1/2011321.003116.1700000ug/l321.0000000
10/1/2011175.003125.6700000ug/l175.0000000
11/1/201141.003122.6700000ug/l41.0000000
12/1/201153.003114.1700000ug/l53.0000000

Oysters

Units: Year
2011
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average 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

pH

Units: None Year
2011
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

     
1/1/20077.5527.5500000None7.5400000
2/1/20077.7327.6400000None7.7300000
3/1/20077.6427.6400000None7.6300000
4/1/20077.5527.6200000None7.5500000
5/1/20077.6027.6100000None7.6000000
6/1/20077.5027.6000000None7.5000000
9/1/20077.3827.5100000None7.3700000
11/1/20077.1327.3400000None7.1200000
12/1/20077.4727.3300000None7.4700000
1/1/20087.4227.3500000None7.4100000
2/1/20087.4827.3800000None7.4800000
3/1/20087.4627.3900000None7.4500000
11/1/20086.7416.7400000None6.7400000
1/1/20095.5816.1600000None5.5800000
2/1/20097.9316.7500000None7.9300000
3/1/20095.8516.5300000None5.8500000
4/1/20096.9116.6000000None6.9100000
6/1/20096.9616.6500000None6.9600000
7/1/20096.5916.8500000None6.5900000
9/1/20096.9516.8500000None6.9500000
10/1/20097.4216.9800000None7.4200000
11/1/20097.6517.1100000None7.6500000
12/1/20096.3416.9900000None6.3400000
1/1/20107.8337.2400000None7.8300000
2/1/20107.3127.2500000None7.3100000
3/1/20107.4137.3300000None7.4100000
4/1/20106.9237.2400000None6.9200000
6/1/20107.2737.3500000None7.2700000
7/1/20106.3227.0500000None6.3200000
8/1/20106.6936.9200000None6.6900000
9/1/20106.5236.7400000None6.5200000
10/1/20106.6736.6900000None6.6700000
12/1/20107.8036.8000000None7.8000000
2/1/20116.5636.8900000None6.5600000
3/1/20117.4437.1200000None7.4400000
4/1/20116.7137.1300000None6.7100000
7/1/20117.3437.0100000None7.3400000
8/1/20117.2937.2000000None7.2900000
9/1/20116.6336.9900000None6.6300000
10/1/20116.3236.9000000None6.3200000
11/1/20116.9536.9100000None6.9500000

Rainfall

Units: inches Year
2011
Historical
period of record
High 45.2 57.5
Mean 17.2755439735869
Low 7.46
No. of Samples 363 5,417

Five-year Rolling Average Graph

     
1/1/20072.06312.0600000inches2.0600000
2/1/20072.73282.7300000inches2.7300000
3/1/20070.20310.2000000inches0.2000000
4/1/20072.57292.5700000inches2.5700000
5/1/20070.00310.0000000inches0.0000000
6/1/20073.10303.1000000inches3.1000000
7/1/20075.62315.6200000inches5.6200000
8/1/20073.72313.7200000inches3.7200000
9/1/200710.043010.0400000inches10.0400000
10/1/20071.12221.1200000inches1.1200000
11/1/20070.71300.7100000inches0.7100000
12/1/20070.64310.6400000inches0.6400000
1/1/20082.97312.9700000inches2.9700000
2/1/20081.46291.4600000inches1.4600000
3/1/20082.07312.0700000inches2.0700000
4/1/20082.72302.7200000inches2.7200000
5/1/20082.99312.9900000inches2.9900000
6/1/20084.30304.3000000inches4.3000000
7/1/20088.74318.7400000inches8.7400000
8/1/20089.36319.3600000inches9.3600000
9/1/20084.47304.4700000inches4.4700000
10/1/20082.35312.3500000inches2.3500000
11/1/20080.50300.5000000inches0.5000000
12/1/20081.90311.9000000inches1.9000000
1/1/20091.52311.5200000inches1.5200000
2/1/20090.58280.5800000inches0.5800000
3/1/20091.11311.1100000inches1.1100000
4/1/20091.05301.0500000inches1.0500000
5/1/20095.67315.6700000inches5.6700000
6/1/20096.33306.3300000inches6.3300000
7/1/20098.09318.0900000inches8.0900000
8/1/200910.803110.8000000inches10.8000000
9/1/20099.83309.8300000inches9.8300000
10/1/20092.70312.7000000inches2.7000000
11/1/20094.46304.4600000inches4.4600000
12/1/20093.05313.0500000inches3.0500000
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
Target
inches
Threshold
inches

Salinity

Units: PSS Year
2011
Historical
period of record
High 29.6 37.5
Mean 17.49 14.18 11.43216
Low 2.25 0.00
No. of Samples 24 2,243

Five-year Rolling Average Graph

     
1/1/20074.5824.5800000PSS1.8000000
2/1/20079.7127.1500000PSS2.7600000
3/1/200720.39211.5600000PSS17.9300000
4/1/200713.75212.1100000PSS3.4900000
5/1/200728.51215.3900000PSS27.6700000
6/1/200722.24216.5300000PSS18.8700000
9/1/200715.71220.0500000PSS11.8600000
11/1/200710.49216.1500000PSS5.8300000
12/1/200715.37213.8600000PSS11.5400000
1/1/200820.88215.6100000PSS16.8200000
2/1/20083.47213.1800000PSS1.6700000
3/1/200819.76213.9900000PSS15.9500000
11/1/200827.83127.8300000PSS27.8300000
1/1/200929.83128.8300000PSS29.8300000
2/1/20090.37119.3400000PSS0.3700000
3/1/200934.19123.0600000PSS34.1900000
4/1/200933.92125.2300000PSS33.9200000
6/1/200930.41125.7400000PSS30.4100000
7/1/200913.99122.5800000PSS13.9900000
9/1/200917.55123.9700000PSS17.5500000
10/1/200910.45118.1000000PSS10.4500000
11/1/200927.04119.8900000PSS27.0400000
12/1/20099.37115.6800000PSS9.3700000
1/1/201028.13318.5100000PSS28.1300000
2/1/201016.56218.1800000PSS16.5600000
3/1/201028.36319.9900000PSS28.3600000
4/1/201027.51322.8300000PSS27.5100000
6/1/201029.31325.9700000PSS29.3100000
7/1/20100.32220.4100000PSS0.3200000
8/1/20100.36317.1700000PSS0.3600000
9/1/20104.45312.3900000PSS4.4500000
10/1/20100.2736.9400000PSS0.2700000
12/1/201024.2335.9300000PSS24.2300000
2/1/201123.65313.1500000PSS23.6500000
3/1/201123.65317.9500000PSS23.6500000
4/1/201116.41321.9900000PSS16.4100000
7/1/201124.49322.0500000PSS24.4900000
8/1/201129.63323.5500000PSS29.6300000
9/1/20112.25318.2000000PSS2.2500000
10/1/201123.44319.9500000PSS23.4400000
11/1/201124.91320.9400000PSS24.9100000

Specific conductance

Units: umho Year
2011
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

     
1/1/2007385.002385.0000000umho106.4200000
2/1/200715679.5028032.2500000umho4971.4100000
3/1/200724037.00213367.1700000umho9087.4300000
4/1/200721437.50215384.7500000umho6229.2700000
5/1/200744005.00221108.8000000umho42970.6300000
6/1/200734800.00223390.6700000umho30359.5100000
9/1/200725224.00231366.6300000umho19808.8500000
11/1/200715472.10225165.3700000umho1012.8900000
12/1/200724386.00221694.0300000umho19162.7300000
1/1/200832681.00224440.7800000umho27346.2400000
2/1/20086067.00220766.0200000umho3132.1000000
3/1/200830892.00221899.6200000umho25717.5500000
11/1/200843185.00143185.0000000umho43185.0000000
1/1/200945977.00144581.0000000umho45977.0000000
2/1/2009756.00129972.6700000umho756.0000000
3/1/200951955.00135468.2500000umho51955.0000000
4/1/200951552.00138685.0000000umho51552.0000000
6/1/200946.97130057.3900000umho46.9700000
7/1/200923282.00125518.3900000umho23282.0000000
9/1/200928639.00125879.9900000umho28639.0000000
10/1/200917831.00117449.7400000umho17831.0000000
11/1/200942091.00122377.9900000umho42091.0000000
12/1/200915977.00125564.0000000umho15977.0000000
1/1/201043565.00329620.6000000umho43565.0000000
2/1/201026946.00229174.8300000umho26946.0000000
3/1/201043874.00331714.0000000umho43874.0000000
4/1/201042763.00335869.3300000umho42763.0000000
6/1/201045683.00340566.2000000umho45683.0000000
7/1/2010653.00231983.8000000umho653.0000000
8/1/2010747.00326744.0000000umho747.0000000
9/1/20108.08317970.8200000umho8.0800000
10/1/2010562.0039530.6200000umho562.0000000
12/1/201038100.0038014.0200000umho38100.0000000
2/1/201137239.00318977.2700000umho37239.0000000
3/1/201137287.00328297.0000000umho37287.0000000
4/1/201126834.00334865.0000000umho26834.0000000
7/1/201138786.00335036.5000000umho38786.0000000
8/1/201145985.00337223.0000000umho45985.0000000
9/1/20114269.00328968.5000000umho4269.0000000
10/1/201137091.00331532.7500000umho37091.0000000
11/1/201139080.00333042.2000000umho39080.0000000

Temperature, water

Units: deg F Year
2011
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

     
1/1/200768.14268.1400000deg F68.1300000
2/1/200760.91264.5300000deg F60.9000000
3/1/200770.04266.3600000deg F70.0300000
4/1/200773.39268.1200000deg F73.3800000
5/1/200776.64269.8200000deg F76.6200000
6/1/200782.24271.8900000deg F82.2400000
9/1/200785.78279.5100000deg F85.7700000
11/1/200773.58280.5300000deg F73.5800000
12/1/200773.80277.7200000deg F73.7900000
1/1/200869.13275.5700000deg F69.1200000
2/1/200864.40273.3400000deg F64.4000000
3/1/200869.81270.1400000deg F69.8000000
11/1/200872.82172.8200000deg F72.8200000
1/1/200957.85165.3400000deg F57.8500000
2/1/200965.73165.4700000deg F65.7300000
3/1/200975.83168.0600000deg F75.8300000
4/1/200973.11169.0700000deg F73.1100000
6/1/200984.43171.3900000deg F84.4300000
7/1/200985.46176.9100000deg F85.4600000
9/1/200986.00182.2500000deg F86.0000000
10/1/200986.18185.5200000deg F86.1800000
11/1/200974.12183.2400000deg F74.1200000
12/1/200970.61180.4700000deg F70.6100000
1/1/201063.05275.9900000deg F63.0500000
2/1/201057.63272.9300000deg F57.6300000
3/1/201065.34269.4900000deg F65.3400000
4/1/201074.68267.5700000deg F74.6800000
6/1/201087.78269.7000000deg F87.7800000
7/1/201080.13273.1100000deg F80.1300000
8/1/201084.07278.4000000deg F84.0700000
9/1/201084.72282.2800000deg F84.7200000
10/1/201073.06281.9500000deg F73.0600000
12/1/201058.66276.1300000deg F58.6600000
2/1/201165.75270.5500000deg F65.7500000
3/1/201172.48267.4900000deg F72.4800000
4/1/201179.25269.0400000deg F79.2500000
7/1/201189.42276.7300000deg F89.4200000
8/1/201188.38282.3800000deg F88.3800000
9/1/201184.27285.3300000deg F84.2700000
10/1/201179.41285.3700000deg F79.4100000
11/1/201173.11282.9200000deg F73.1100000

Turbidity

Units: NTU Year
2011
Historical
period of record
High 8.5 18.0
Mean 3.63 3.64 2.28435
Low 2.20 1.30
No. of Samples 36 250

Five-year Rolling Average Graph

     
1/1/20073.9023.9000000NTU3.7900000
2/1/20073.1523.5300000NTU3.1500000
3/1/20072.1523.0700000NTU2.1500000
4/1/20072.7022.9800000NTU2.7000000
5/1/20071.8022.7400000NTU1.7900000
6/1/20072.4022.6800000NTU2.3500000
7/1/20074.8022.8300000NTU4.7800000
8/1/20075.7523.2700000NTU5.7100000
9/1/20073.9523.5700000NTU3.9500000
11/1/20072.5023.8800000NTU2.5000000
12/1/20072.7023.9400000NTU2.6900000
1/1/20082.4023.4600000NTU2.2200000
2/1/20082.8522.8800000NTU2.8500000
3/1/20081.7022.4300000NTU1.6500000
4/1/20082.1022.3800000NTU2.1000000
5/1/20082.0922.3100000NTU2.0700000
6/1/20083.3022.4100000NTU3.2900000
7/1/20083.4022.5700000NTU3.3900000
8/1/20082.5022.5200000NTU2.4900000
9/1/20085.1023.0800000NTU5.1000000
10/1/20082.9023.2200000NTU2.8900000
11/1/20083.0013.3700000NTU3.0000000
1/1/20091.8613.0700000NTU1.8600000
2/1/20094.2013.4100000NTU4.2000000
3/1/20091.7812.7500000NTU1.7800000
4/1/20092.1012.5900000NTU2.1000000
6/1/20092.3012.4500000NTU2.3000000
7/1/20092.4012.5600000NTU2.4000000
8/1/20092.5012.2200000NTU2.5000000
9/1/20092.4012.3400000NTU2.4000000
10/1/20093.7012.6600000NTU3.7000000
11/1/20092.5012.6300000NTU2.5000000
12/1/20094.3012.9700000NTU4.3000000
1/1/20103.4033.1300000NTU3.4000000
2/1/20103.6023.3200000NTU3.6000000
3/1/20102.8033.3800000NTU2.8000000
4/1/20101.6033.0300000NTU1.6000000
5/1/20104.0033.2800000NTU4.0000000
6/1/20102.4032.9700000NTU2.4000000
7/1/20108.1023.7500000NTU8.1000000
8/1/20108.5034.5700000NTU8.5000000
9/1/20105.1034.9500000NTU5.1000000
10/1/20106.6035.7800000NTU6.6000000
11/1/20104.6035.8800000NTU4.6000000
12/1/20102.4035.8800000NTU2.4000000
1/1/20115.2035.4000000NTU5.2000000
2/1/20113.5034.5700000NTU3.5000000
3/1/20118.5035.1300000NTU8.5000000
4/1/20112.5034.4500000NTU2.5000000
5/1/20112.8034.1500000NTU2.8000000
6/1/20113.6034.3500000NTU3.6000000
7/1/20113.0033.9800000NTU3.0000000
8/1/20113.3033.9500000NTU3.3000000
9/1/20115.5033.4500000NTU5.5000000
10/1/20114.2033.7300000NTU4.2000000
11/1/20112.2033.6300000NTU2.2000000
12/1/20112.7033.4800000NTU2.7000000
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...
Most Recent Sarasota County Oyster Monitoring Program Data
Icon Site ID Year Dead Live Total % Live
1 PH3 2011 128 107 235 46

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.

Loading interactive chart...

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 »

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.