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Phillippi Creek Condition Report for 2017

View 2016 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
2017
Historical
period of record
High 0.252 0.332
Mean 0.0054 0.0041 0.01822574
Low 0.0003 0.00
No. of Samples 183 2,419

Five-year Rolling Average Graph

      
1/1/20134.4970.0044900mg/l0.0035700
2/1/20133.4490.0039700mg/l0.0015100
3/1/20132.8090.0035800mg/l0.0022300
4/1/201311.4390.0055400mg/l0.0065900
5/1/20135.8290.0056000mg/l0.0045300
6/1/201312.33100.0067200mg/l0.0118900
7/1/201322.32120.0096900mg/l0.0205700
8/1/20138.34100.0105100mg/l0.0063200
9/1/201311.53120.0119600mg/l0.0093800
10/1/20139.67100.0116700mg/l0.0078900
11/1/20133.48120.0112800mg/l0.0031900
12/1/20135.52120.0101400mg/l0.0030600
1/1/201413.97130.0087500mg/l0.0083900
2/1/201415.20130.0099000mg/l0.0065100
3/1/20143.04130.0084800mg/l0.0025700
4/1/20143.94110.0075300mg/l0.0037400
5/1/201410.05170.0086200mg/l0.0078100
6/1/201421.73210.0113200mg/l0.0196800
7/1/20149.29170.0105400mg/l0.0081000
8/1/201410.87150.0098200mg/l0.0083100
9/1/201416.07150.0119900mg/l0.0066200
10/1/20146.26150.0123800mg/l0.0044900
11/1/20143.35150.0112600mg/l0.0031400
12/1/20142.59110.0080700mg/l0.0023400
1/1/20152.99130.0070200mg/l0.0024300
2/1/20157.41130.0064500mg/l0.0054700
3/1/20154.77130.0045600mg/l0.0029700
4/1/20151.12100.0037100mg/l0.0009500
5/1/201519.90130.0064600mg/l0.0116000
6/1/20154.72230.0068200mg/l0.0029900
7/1/20158.63150.0077600mg/l0.0066800
8/1/201510.14190.0082100mg/l0.0054800
9/1/201515.49150.0100000mg/l0.0091900
10/1/20159.02240.0113200mg/l0.0031700
11/1/201510.60200.0097700mg/l0.0020300
12/1/20151.3320.0092000mg/l0.0012400
1/1/201624.18350.0117900mg/l0.0108100
2/1/201622.11150.0137900mg/l0.0094200
3/1/20169.72170.0128300mg/l0.0040100
4/1/201624.73150.0154500mg/l0.0039500
5/1/201616.77170.0164700mg/l0.0074100
6/1/201615.01150.0187500mg/l0.0082200
7/1/20169.49170.0163100mg/l0.0052800
8/1/201614.96170.0151100mg/l0.0093300
9/1/20169.35150.0150500mg/l0.0065900
10/1/201614.79130.0134000mg/l0.0045900
11/1/201616.00170.0132700mg/l0.0031800
12/1/201629.40130.0156700mg/l0.0033000
1/1/201733.58120.0196800mg/l0.0058600
2/1/201724.69110.0213000mg/l0.0039200
3/1/20174.81110.0205500mg/l0.0028200
4/1/201719.57120.0213400mg/l0.0038400
5/1/201713.72110.0209600mg/l0.0042200
6/1/201728.97120.0208900mg/l0.0215800
7/1/201715.75130.0179200mg/l0.0052000
8/1/201711.52130.0157200mg/l0.0054700
9/1/201719.73120.0182100mg/l0.0132200
10/1/20178.6060.0163800mg/l0.0057000
11/1/201718.6660.0172100mg/l0.0052500
12/1/201721.0060.0158800mg/l0.0062900
Target
mg/l
Threshold
0.02 mg/l
Pass

Nitrogen, Total

Score: Pass
Units: mg/l Year
2017
Historical
period of record
High 20.653 20.653
Mean 1.4126 1.2326 1.58621936
Low 0.573 0.00
No. of Samples 177 1,960

Five-year Rolling Average Graph

      
1/1/2013843.0020.8430000mg/l0.8316300
2/1/2013775.6730.8093400mg/l0.7733700
3/1/2013743.0030.7872200mg/l0.7351700
4/1/2013828.0030.7974200mg/l0.8246200
5/1/2013957.0030.8293300mg/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
1/1/2014864.5061.2636400mg/l0.8572200
2/1/20141093.1761.2130000mg/l1.0838000
3/1/2014937.6761.1302000mg/l0.9180600
4/1/20141109.1761.0945000mg/l1.3282200
5/1/20141253.4491.0982000mg/l1.4052100
6/1/20141195.0061.0754900mg/l1.1875300
7/1/20141365.6051.1590100mg/l1.3420100
8/1/20141281.8051.1904500mg/l1.2705700
9/1/20141267.0051.2453400mg/l1.2335300
10/1/20141505.5081.3113900mg/l1.4914800
11/1/20141279.0081.3156500mg/l1.2374200
12/1/2014900.2051.2665200mg/l1.1115400
1/1/2015841.0051.1790800mg/l1.0332400
2/1/20151297.0041.1816200mg/l1.2311900
3/1/2015900.8051.1205800mg/l1.1230800
4/1/2015942.0011.0266700mg/l0.9420000
5/1/20151100.2540.9968800mg/l1.0536500
6/1/20151186.2971.0445600mg/l1.1308800
7/1/2015835.0011.0435600mg/l0.8350000
8/1/20151570.0021.0890600mg/l1.5628200
10/1/20151565.0021.2513100mg/l1.5308800
12/1/20151070.0011.2600000mg/l1.0700000
1/1/20161745.43141.4876100mg/l1.6522300
2/1/20161696.93141.5193400mg/l1.5272700
3/1/20161236.33151.4627400mg/l1.1374400
4/1/20161411.64141.4320700mg/l1.2483700
5/1/20161581.33151.4569400mg/l1.4223200
6/1/20161541.69131.5355600mg/l1.4915400
7/1/20161721.93151.5316400mg/l1.6731700
8/1/20161825.80151.5531200mg/l1.8056100
9/1/20161647.07141.6215800mg/l1.4331400
10/1/20162086.85131.7341100mg/l2.0290600
11/1/20161616.50141.7399700mg/l1.5053000
12/1/20161360.08121.7097100mg/l1.3379200
1/1/20171898.42121.7391200mg/l1.6822300
2/1/20171622.55111.7052500mg/l1.2231200
3/1/20171817.90101.7337200mg/l1.4347900
4/1/20171546.92121.6437300mg/l1.1841700
5/1/20171493.45111.6232200mg/l1.2338600
6/1/20171571.92121.6585300mg/l1.5479400
7/1/20171225.46131.5463700mg/l1.1597500
8/1/20171250.54131.4843700mg/l1.2254500
9/1/20171621.92121.4517000mg/l1.5803900
10/1/20171731.6761.4824900mg/l1.5746500
11/1/20171754.6761.5260300mg/l1.6006300
12/1/20171934.0061.5863800mg/l1.6682800
Pass

Phosphorus, Total

Score: Pass
Units: mg/l Year
2017
Historical
period of record
High 2.01 7.36
Mean 0.3734 0.4063 0.38670095
Low 0.033 0.033
No. of Samples 178 2,822

Five-year Rolling Average Graph

      
1/1/2013253.5060.2535000mg/l0.2179900
2/1/2013143.7170.1986100mg/l0.1364600
3/1/2013196.8670.1980200mg/l0.1912400
4/1/2013332.4370.2316300mg/l0.3282700
5/1/2013355.5770.2564100mg/l0.3544100
6/1/2013562.6790.3074600mg/l0.4983600
7/1/2013421.10100.3353900mg/l0.4126400
8/1/2013510.2290.3964800mg/l0.4475900
9/1/2013426.90100.4348200mg/l0.4020500
10/1/2013353.1190.4382600mg/l0.3136200
11/1/2013288.10100.4270200mg/l0.2875300
12/1/2013272.10100.3785900mg/l0.2399600
1/1/2014282.17120.3554300mg/l0.2752400
2/1/2014350.83120.3288700mg/l0.3498500
3/1/2014406.42120.3254600mg/l0.3570900
4/1/2014306.27110.3176500mg/l0.2778800
5/1/2014364.19160.3303300mg/l0.3482800
6/1/2014305.80200.3359500mg/l0.2942400
7/1/2014501.63160.3725200mg/l0.4659800
8/1/2014554.64140.4064900mg/l0.5403300
9/1/2014544.14140.4294500mg/l0.4894600
10/1/2014389.93140.4433900mg/l0.3633800
11/1/2014281.29140.4295700mg/l0.2652400
12/1/2014256.20100.4213100mg/l0.2297000
1/1/2015217.33120.3739200mg/l0.1930300
2/1/2015438.92120.3546400mg/l0.3557500
3/1/2015336.42120.3200200mg/l0.3054400
4/1/2015281.3390.3019200mg/l0.2408000
5/1/2015369.67120.3166500mg/l0.3459300
6/1/2015521.64220.3608900mg/l0.4684400
7/1/2015425.64140.3956000mg/l0.3989800
8/1/2015422.24170.3928200mg/l0.3917100
9/1/2015452.73150.4122100mg/l0.3536700
10/1/2015319.91220.4186400mg/l0.2762000
11/1/2015448.05200.4317000mg/l0.3731200
12/1/2015230.0010.3831000mg/l0.2300000
1/1/2016270.32340.3572100mg/l0.2490100
2/1/2016277.00140.3330000mg/l0.2621100
3/1/2016289.20150.3057500mg/l0.2521600
4/1/2016328.21140.3071300mg/l0.2760100
5/1/2016331.60150.2877200mg/l0.2872300
6/1/2016417.07140.3189000mg/l0.3836300
7/1/2016402.07150.3408600mg/l0.3482100
8/1/2016388.00150.3593600mg/l0.3672900
9/1/2016439.29140.3843700mg/l0.3740700
10/1/2016495.00130.4121700mg/l0.4260200
11/1/2016292.80150.4057100mg/l0.2292700
12/1/2016334.00130.3918600mg/l0.2829400
1/1/2017237.67120.3644600mg/l0.1702400
2/1/2017387.00110.3642900mg/l0.2963500
3/1/2017527.36110.3789700mg/l0.3865600
4/1/2017516.83120.3826100mg/l0.3655900
5/1/2017689.18110.4486700mg/l0.4630000
6/1/2017359.08120.4528500mg/l0.3332000
7/1/2017402.31130.4802900mg/l0.3639100
8/1/2017423.54130.4863800mg/l0.3646800
9/1/2017412.33120.4672100mg/l0.3818900
10/1/2017504.3360.4651300mg/l0.4241700
11/1/2017345.5060.4078500mg/l0.2130000
12/1/2017404.6760.4154500mg/l0.3526300
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
2017
Historical
period of record
High 365.852 613.00
Mean 64.94 68.8 33.78591
Low 4.08 0.00
No. of Samples 197 3,348

Five-year Rolling Average Graph

      
1/1/201375.66775.6600000percent (%)74.5400000
2/1/2013103.631289.6500000percent (%)99.3500000
3/1/2013155.5111111.6000000percent (%)141.0800000
4/1/201366.553100.3400000percent (%)66.4400000
5/1/201342.301188.7300000percent (%)34.3000000
6/1/201359.131383.8000000percent (%)57.7200000
7/1/201359.641281.1300000percent (%)57.1100000
8/1/201361.261374.0700000percent (%)61.0400000
9/1/201368.741459.6000000percent (%)68.1000000
10/1/2013101.651365.4500000percent (%)94.0900000
11/1/201391.271473.6200000percent (%)90.5200000
12/1/201392.221579.1300000percent (%)89.0800000
1/1/201492.911384.6800000percent (%)91.3900000
2/1/201492.371389.8600000percent (%)91.5100000
3/1/2014116.731597.8600000percent (%)113.9800000
4/1/201488.741595.7100000percent (%)88.7000000
5/1/201466.191791.5300000percent (%)61.4100000
6/1/201462.002186.4900000percent (%)60.5100000
7/1/201475.411883.5700000percent (%)74.8400000
8/1/201474.762180.6400000percent (%)74.3700000
9/1/201465.242172.0600000percent (%)64.0100000
10/1/201470.292168.9800000percent (%)69.5700000
11/1/201487.782172.5800000percent (%)84.9500000
12/1/2014110.722080.7000000percent (%)109.8900000
1/1/201596.351584.1900000percent (%)93.1700000
2/1/201596.211687.7700000percent (%)95.4700000
3/1/201575.761689.5200000percent (%)74.9500000
4/1/201561.36188.0300000percent (%)61.3600000
5/1/201586.051587.7400000percent (%)81.6500000
6/1/201583.50783.2100000percent (%)66.0500000
7/1/201560.742177.2700000percent (%)58.8100000
8/1/201598.872577.7100000percent (%)96.1900000
9/1/201572.362377.1500000percent (%)70.4700000
10/1/201577.212579.7900000percent (%)75.6000000
11/1/201580.732378.9000000percent (%)74.1500000
12/1/201563.89175.6300000percent (%)63.8900000
1/1/201685.514079.7600000percent (%)85.1300000
2/1/201686.881777.7600000percent (%)84.8300000
3/1/201689.701680.6500000percent (%)87.6700000
4/1/201687.441682.3600000percent (%)85.0900000
5/1/201672.191780.9400000percent (%)67.5900000
6/1/201668.582581.7200000percent (%)66.1800000
7/1/201674.291779.8500000percent (%)69.2600000
8/1/201671.291777.2500000percent (%)67.9500000
9/1/201664.661673.0800000percent (%)63.0500000
10/1/201634.081664.1800000percent (%)21.7900000
11/1/201686.141766.5100000percent (%)82.0500000
12/1/201684.631669.1800000percent (%)80.4800000
1/1/201789.102171.6500000percent (%)86.8700000
2/1/201784.951373.9300000percent (%)80.1200000
3/1/201759.101373.0000000percent (%)53.6100000
4/1/201775.611379.9200000percent (%)54.9500000
5/1/2017105.351383.1200000percent (%)90.5900000
6/1/201761.781379.3200000percent (%)59.6900000
7/1/201761.891674.7800000percent (%)60.3800000
8/1/201757.141670.1500000percent (%)52.3500000
9/1/201767.151671.4900000percent (%)66.2200000
10/1/201757.88568.5300000percent (%)54.9800000
11/1/201789.68665.9200000percent (%)80.2800000
12/1/201780.12668.9800000percent (%)79.6600000
Target
percent (%)
Threshold
38.00 percent (%)

BOD, Biochemical oxygen demand

Units: mg/l Year
2017
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

      
1/1/20130.6950.6900000mg/l0.6500000
2/1/20130.6350.6600000mg/l0.6100000
3/1/20130.8660.7300000mg/l0.6700000
4/1/20131.4860.9200000mg/l1.1100000
5/1/20132.2961.1900000mg/l1.5600000
6/1/20132.1781.3500000mg/l2.1600000
7/1/20131.7291.5300000mg/l1.5800000
8/1/20131.1281.6100000mg/l1.1200000
9/1/20131.5291.7200000mg/l1.4900000
10/1/20130.6681.5800000mg/l0.6400000
11/1/20130.8191.3300000mg/l0.7600000
12/1/20130.6191.0700000mg/l0.5900000
1/1/20140.58110.8800000mg/l0.5700000
2/1/20140.50110.7800000mg/l0.5000000
3/1/20140.8490.6700000mg/l0.8300000
4/1/20140.6490.6600000mg/l0.6300000
5/1/20141.02150.7000000mg/l0.8300000
6/1/20142.36190.9900000mg/l2.3400000
7/1/20141.02151.0600000mg/l0.9400000
8/1/20141.30121.2000000mg/l1.2300000
9/1/20141.55111.3200000mg/l1.1700000
10/1/20140.93111.3600000mg/l0.9100000
11/1/20140.60121.2900000mg/l0.5900000
12/1/20140.6491.0100000mg/l0.6300000
1/1/20150.52110.9200000mg/l0.5200000
2/1/20151.20110.9100000mg/l1.1700000
3/1/20150.89110.8000000mg/l0.8800000
4/1/20150.5280.7300000mg/l0.5200000
5/1/20151.78110.9300000mg/l1.5400000
6/1/20151.04210.9900000mg/l0.9200000
7/1/20151.77131.2000000mg/l1.4600000
8/1/20151.28151.2100000mg/l1.0800000
9/1/20151.43151.3000000mg/l1.3200000
10/1/20152.54221.6400000mg/l1.0200000
11/1/20151.13221.5300000mg/l0.7700000
1/1/20161.74411.6200000mg/l1.4700000
2/1/20161.80211.7300000mg/l1.4400000
3/1/20161.51231.7400000mg/l1.1300000
4/1/20161.17211.4700000mg/l0.7900000
5/1/20161.94211.6300000mg/l1.5400000
6/1/20161.34211.5800000mg/l1.2500000
7/1/20161.55211.5500000mg/l1.3300000
8/1/20161.47211.5000000mg/l1.4300000
9/1/20161.82211.5500000mg/l1.6000000
10/1/20161.75211.6500000mg/l1.5000000
11/1/20161.70211.6100000mg/l1.3600000
12/1/20161.44211.6200000mg/l1.2000000
2/1/20171.53201.6500000mg/l1.2300000
3/1/20171.67201.6200000mg/l1.2900000
4/1/20171.64201.6000000mg/l1.2800000
5/1/20171.45181.5500000mg/l1.1900000
6/1/20172.02211.6600000mg/l1.8400000
7/1/20171.77211.6800000mg/l1.4100000
8/1/20171.70211.7100000mg/l1.3800000
9/1/20171.81211.7300000mg/l1.6300000
10/1/20171.74111.7500000mg/l1.4700000
11/1/20171.59111.7700000mg/l1.2600000
12/1/20171.60111.7000000mg/l1.2800000

Color

Units: PCU Year
2017
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

      
2/1/2016108.5721108.5700000PCU97.2500000
3/1/201680.482194.5300000PCU75.3300000
4/1/201672.862187.3000000PCU66.6800000
5/1/201677.622184.8800000PCU76.4200000
6/1/2016101.432188.1900000PCU97.2300000
7/1/201692.862188.9700000PCU88.6500000
8/1/2016147.622195.4800000PCU139.8500000
9/1/2016100.482198.8100000PCU95.5100000
10/1/2016106.1921104.3700000PCU103.5300000
11/1/201670.4821103.1800000PCU67.2000000
12/1/201666.192197.3000000PCU63.1400000
1/1/201756.432191.2300000PCU54.7000000
2/1/201780.252080.0000000PCU74.9700000
3/1/201770.252074.9700000PCU65.4100000
4/1/201769.502068.8500000PCU63.9800000
5/1/201757.501866.6900000PCU55.0200000
6/1/2017105.482173.2400000PCU101.7500000
7/1/201795.242179.7000000PCU90.7600000
8/1/2017106.902184.1500000PCU99.6900000
9/1/2017101.192189.3000000PCU96.0400000
10/1/2017103.181194.9200000PCU96.1300000
11/1/201796.3611101.3900000PCU94.0600000
12/1/201779.091196.9900000PCU76.2800000

Escherichia coli

Units: cfu/100ml Year
2017
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

      
10/1/2013560.001560.0000000cfu/100ml560.0000000
11/1/20131100.001830.0000000cfu/100ml1100.0000000
12/1/2013940.001866.6700000cfu/100ml940.0000000
1/1/2014750.001837.5000000cfu/100ml750.0000000
2/1/2014300.001730.0000000cfu/100ml300.0000000
4/1/2015390.004390.0000000cfu/100ml228.5700000
5/1/2015696.504543.2500000cfu/100ml584.0300000
6/1/20153012.0081366.1700000cfu/100ml666.2600000
7/1/20156600.0052674.6300000cfu/100ml2519.7100000
8/1/20151516.5082443.0000000cfu/100ml481.3900000
9/1/20152519.5082455.7500000cfu/100ml1145.1800000
10/1/20152269.00212768.9200000cfu/100ml856.6500000
11/1/20151378.52212882.5900000cfu/100ml703.1600000
1/1/2016979.31391732.5700000cfu/100ml844.0500000
2/1/20161328.75201695.0200000cfu/100ml759.6700000
3/1/2016960.30201383.1800000cfu/100ml539.0300000
4/1/2016739.16191077.2100000cfu/100ml308.2400000
5/1/20161658.70201133.2400000cfu/100ml796.6500000
6/1/20161679.75201224.3300000cfu/100ml470.2900000
7/1/20161175.70201257.0600000cfu/100ml622.0700000
8/1/2016663.85201146.2400000cfu/100ml458.1200000
9/1/20163037.45201492.4400000cfu/100ml1074.1900000
10/1/20161474.15201614.9300000cfu/100ml864.8300000
11/1/20163098.96241854.9800000cfu/100ml1704.5300000
12/1/20161798.95201874.8400000cfu/100ml1235.7400000
1/1/20171353.72181904.5100000cfu/100ml718.3100000
2/1/20171745.00192084.7100000cfu/100ml924.9300000
3/1/20171011.68191747.0800000cfu/100ml376.4400000
4/1/20173354.42192060.4600000cfu/100ml710.6300000
5/1/20172632.06171982.6400000cfu/100ml836.5200000
6/1/2017646.30201790.5300000cfu/100ml432.4900000
7/1/20171329.75201786.5400000cfu/100ml456.7700000
8/1/20171150.95201687.5300000cfu/100ml563.9300000
9/1/20171300.00201735.5800000cfu/100ml523.1100000
10/1/20171832.70101481.9600000cfu/100ml1225.2500000
11/1/20171694.30101325.6700000cfu/100ml976.2100000
12/1/20171545.10101475.4700000cfu/100ml1194.3400000
Target
cfu/100ml
Threshold
cfu/100ml

Nitrogen, Ammonia + Ammonium as N

Units: ug/l Year
2017
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

      
1/1/201361.83661.8300000ug/l47.3200000
2/1/201332.29747.0600000ug/l19.3700000
3/1/201343.29745.8000000ug/l24.7400000
4/1/201336.43743.4600000ug/l21.7600000
5/1/201331.43741.0500000ug/l18.9500000
6/1/201371.22946.0800000ug/l63.3700000
7/1/201365.201046.6400000ug/l38.0300000
8/1/2013121.56961.5200000ug/l113.8500000
9/1/201370.901066.1200000ug/l55.9100000
10/1/201354.11969.0700000ug/l31.7700000
11/1/201353.701072.7800000ug/l37.8800000
12/1/201388.701075.7000000ug/l33.5400000
1/1/201416.541567.5900000ug/l3.6000000
2/1/201418.871550.4700000ug/l4.1000000
3/1/201428.411543.3900000ug/l4.8300000
4/1/201440.291141.0900000ug/l7.1000000
5/1/201439.701638.7500000ug/l8.0500000
6/1/20149.002525.4700000ug/l2.2000000
7/1/201411.802024.6800000ug/l3.2700000
8/1/201438.901828.0200000ug/l7.7900000
9/1/201447.021831.1200000ug/l10.5100000
10/1/201459.241834.2800000ug/l14.9200000
11/1/201444.181835.0200000ug/l9.1200000
12/1/201456.301042.9100000ug/l52.0800000
1/1/201522.171244.6400000ug/l15.3200000
2/1/201528.581242.9200000ug/l22.3700000
3/1/201536.671241.1900000ug/l31.1200000
4/1/201516.67934.1000000ug/l12.9400000
5/1/201543.081233.9100000ug/l31.3600000
6/1/2015132.182246.5600000ug/l70.0400000
7/1/2015132.501464.9500000ug/l64.6900000
8/1/201576.411772.9200000ug/l63.3200000
9/1/2015157.531593.0600000ug/l123.5900000
10/1/20151239.0024296.7800000ug/l117.2800000
11/1/20151319.6822509.5500000ug/l84.7200000
12/1/201534.001493.1900000ug/l34.0000000
1/1/201678.4842484.1800000ug/l3.8100000
2/1/20161333.7010693.7300000ug/l160.2700000
3/1/20161231.6010872.7400000ug/l119.9000000
4/1/2016582.506763.3300000ug/l39.9400000
5/1/2016154.6712569.1600000ug/l49.1200000
6/1/2016723.5012684.0800000ug/l160.6700000
7/1/2016937.258827.2000000ug/l243.3700000
8/1/2016367.3315666.1400000ug/l177.2500000
9/1/2016870.6422605.9800000ug/l230.5100000
10/1/20161253.1316717.7500000ug/l233.4500000
11/1/20161619.5511961.9000000ug/l105.8400000
12/1/2016701.3113958.2000000ug/l177.4200000
1/1/2017364.569862.7500000ug/l169.4700000
2/1/201799.506818.1200000ug/l57.9900000
3/1/2017147.504697.5900000ug/l72.2700000
4/1/20171146.502679.8200000ug/l228.5000000
5/1/20175.001410.7300000ug/l5.0000000
6/1/2017236.3821333.2400000ug/l205.7900000
7/1/2017318.7914325.6100000ug/l118.8500000
8/1/20172508.205727.0600000ug/l387.8500000
9/1/2017764.1712829.8400000ug/l233.7500000
10/1/20172910.3361123.8100000ug/l217.4300000
11/1/20172888.0051604.3100000ug/l226.0200000
12/1/20171064.6761742.3600000ug/l317.3200000

Nitrogen, Kjeldahl

Units: ug/l Year
2017
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

      
1/1/2013798.836798.8300000ug/l792.8200000
2/1/2013675.867737.3500000ug/l669.9700000
3/1/2013644.867706.5200000ug/l638.3000000
4/1/2013990.867777.6000000ug/l944.1100000
5/1/2013918.717805.8200000ug/l918.5700000
6/1/20131158.569864.6100000ug/l1138.4300000
7/1/20131518.0010984.4800000ug/l1504.4300000
8/1/20131261.1191082.0200000ug/l1258.8700000
9/1/20131275.00101187.0400000ug/l1272.6400000
10/1/2013855.1191164.4200000ug/l832.2500000
11/1/2013978.80101174.4300000ug/l975.1900000
12/1/2013829.80101119.6400000ug/l759.6900000
1/1/2014741.3312990.1900000ug/l734.4600000
2/1/2014941.0012936.8400000ug/l927.7900000
3/1/2014795.0012856.8400000ug/l781.0900000
4/1/20141142.7311904.7800000ug/l1137.4300000
5/1/20141201.2516941.8500000ug/l1197.1500000
6/1/20141124.5020990.9700000ug/l1118.7700000
7/1/20141205.06161068.2600000ug/l1173.6700000
8/1/20141092.14141093.4500000ug/l1077.3500000
9/1/20141039.86141134.2600000ug/l1008.7900000
10/1/20141031.71141115.7500000ug/l1024.8000000
11/1/2014817.43141051.7800000ug/l799.4200000
12/1/2014681.3010977.9200000ug/l668.4700000
1/1/2015845.7512918.0300000ug/l830.1000000
2/1/20151050.4212911.0800000ug/l1003.8300000
3/1/2015921.3312891.3200000ug/l920.0200000
4/1/2015736.679842.1500000ug/l735.2200000
5/1/20151152.3312897.9700000ug/l1103.5400000
6/1/20151130.4522972.8300000ug/l1074.1700000
7/1/20151072.71141010.6500000ug/l1024.3300000
8/1/20151258.12171045.2700000ug/l1236.1700000
9/1/20151585.33151155.9400000ug/l1543.7900000
10/1/20151953.75241358.7800000ug/l1301.7000000
11/1/20152453.23221575.6000000ug/l1279.2400000
12/1/2015740.0011510.5200000ug/l740.0000000
1/1/20161504.81421582.5400000ug/l1381.6500000
2/1/20161744.00221663.5200000ug/l1282.6700000
3/1/20161454.21241641.6700000ug/l976.3900000
4/1/20161250.86221524.5200000ug/l1012.3800000
5/1/20161732.67241404.4300000ug/l1456.6600000
6/1/20161806.24211582.1300000ug/l1455.0200000
7/1/20161674.08241610.3400000ug/l1471.2600000
8/1/20161823.48231623.5900000ug/l1729.8200000
9/1/20162212.73221750.0100000ug/l1568.2200000
10/1/20162324.05221928.8800000ug/l1664.0700000
11/1/20161887.83241954.7400000ug/l1219.4600000
12/1/20161317.61231873.3000000ug/l1064.0800000
1/1/20171536.59221850.3800000ug/l1278.1400000
2/1/20171412.95211781.9600000ug/l1145.6000000
3/1/20171468.10211657.8600000ug/l1213.1800000
4/1/20171506.71211521.6300000ug/l1162.7500000
5/1/20171263.26191417.5400000ug/l1093.3000000
6/1/20171327.05211419.1100000ug/l1293.2100000
7/1/20171174.05211358.6900000ug/l1039.2300000
8/1/20171595.95211389.1900000ug/l1081.3900000
9/1/20171706.67211428.9500000ug/l1408.7200000
10/1/20172907.64111662.4400000ug/l1355.8400000
11/1/20172656.00111894.5600000ug/l1192.3300000
12/1/20171572.36111935.4500000ug/l1075.6300000

Nitrogen, Nitrite + Nitrate as N

Units: ug/l Year
2017
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

      
1/1/2013203.836203.8300000ug/l34.3900000
2/1/2013114.297159.0600000ug/l28.3000000
3/1/201389.577135.9000000ug/l44.5600000
4/1/201330.577109.5700000ug/l22.3000000
5/1/2013111.717109.9900000ug/l31.7500000
6/1/2013126.789112.7900000ug/l112.0100000
7/1/2013172.2010107.5200000ug/l170.5400000
8/1/2013143.899112.4500000ug/l121.2700000
9/1/2013260.2010140.8900000ug/l209.9800000
10/1/2013394.679201.5800000ug/l347.4900000
11/1/2013357.5010242.5400000ug/l332.0300000
12/1/2013372.5010283.4900000ug/l313.7000000
1/1/2014148.2512279.5000000ug/l135.3200000
2/1/2014186.2512286.5600000ug/l177.0300000
3/1/2014149.5012268.1100000ug/l98.3400000
4/1/2014203.5511236.2600000ug/l184.4600000
5/1/2014230.4416215.0800000ug/l224.0700000
6/1/201475.2520165.5400000ug/l67.9000000
7/1/2014227.8816178.8100000ug/l212.4200000
8/1/2014183.0014178.2700000ug/l173.8400000
9/1/2014215.3614189.2500000ug/l208.2800000
10/1/2014452.5714230.7500000ug/l422.9800000
11/1/2014433.8614264.6500000ug/l397.9000000
12/1/2014466.4010329.8500000ug/l450.0500000
1/1/2015290.6712340.3100000ug/l237.2200000
2/1/2015325.4212364.0500000ug/l313.1600000
3/1/2015206.1712362.5200000ug/l181.6900000
4/1/2015122.449307.4900000ug/l53.2600000
5/1/201581.5511248.7800000ug/l76.4100000
6/1/2015109.7322189.3300000ug/l57.0000000
7/1/2015191.4314172.7900000ug/l133.3600000
8/1/2015195.3517151.1100000ug/l150.7100000
9/1/2015441.8715190.4000000ug/l322.8400000
10/1/2015623.0013273.8200000ug/l519.3400000
11/1/2015509.2322345.1000000ug/l336.6600000
12/1/2015330.001381.8100000ug/l330.0000000
1/1/2016266.1242394.2600000ug/l205.0900000
2/1/2016490.9020443.5200000ug/l307.3000000
3/1/2016291.3020418.4300000ug/l205.0600000
4/1/2016281.0813361.4400000ug/l189.6600000
5/1/2016174.2818305.6100000ug/l120.2800000
6/1/2016280.2417297.3200000ug/l239.9300000
7/1/2016257.6020295.9000000ug/l202.4800000
8/1/2016239.4219253.9900000ug/l214.6100000
9/1/2016407.1020273.2900000ug/l354.3700000
10/1/2016486.9020307.5900000ug/l405.0500000
11/1/2016480.5922358.6400000ug/l409.0000000
12/1/2016336.1723367.9600000ug/l317.1500000
1/1/2017281.3020371.9100000ug/l229.8000000
2/1/2017101.789348.9700000ug/l77.6400000
3/1/201765.899292.1100000ug/l39.8100000
4/1/201784.508225.0400000ug/l49.1900000
5/1/201772.867157.0800000ug/l32.5800000
6/1/2017199.2917134.2700000ug/l183.8900000
7/1/2017208.0521122.0600000ug/l155.9200000
8/1/2017334.4321160.8400000ug/l270.2500000
9/1/2017278.6319196.2900000ug/l219.1800000
10/1/2017440.339255.6000000ug/l416.4900000
11/1/2017499.789326.7500000ug/l451.7500000
12/1/2017400.0011360.2000000ug/l289.2700000

pH

Units: None Year
2017
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

      
1/1/20137.4377.4300000None7.4300000
2/1/20137.68127.5600000None7.6700000
3/1/20137.71117.6100000None7.7100000
4/1/20137.5437.5900000None7.5400000
5/1/20137.48117.5700000None7.4700000
6/1/20137.10137.4900000None7.0900000
7/1/20137.15147.4400000None7.1500000
8/1/20137.42137.4000000None7.4200000
9/1/20137.51137.3700000None7.4200000
10/1/20137.53137.3700000None7.5200000
11/1/20137.64147.3900000None7.6400000
12/1/20137.48157.4600000None7.4700000
1/1/20147.63137.5400000None7.6300000
2/1/20147.36127.5300000None7.3500000
3/1/20147.51137.5300000None7.5100000
4/1/20147.47137.5200000None7.4700000
5/1/20147.39147.4700000None7.3900000
6/1/20147.51177.4800000None7.5100000
7/1/20147.40167.4400000None7.4000000
8/1/20147.36177.4400000None7.3600000
9/1/20147.52187.4400000None7.5200000
10/1/20147.25187.4100000None7.2400000
11/1/20147.49187.4200000None7.4900000
12/1/20147.58177.4300000None7.5800000
1/1/20157.63157.4700000None7.6200000
2/1/20157.38167.4800000None7.3700000
3/1/20157.37167.4500000None7.3700000
4/1/20157.3017.4600000None7.3000000
5/1/20157.42157.4500000None7.4200000
6/1/20157.5177.4400000None7.5000000
7/1/20157.25237.3700000None7.2400000
8/1/20157.12277.3300000None7.1100000
9/1/20157.26257.3100000None7.2500000
10/1/20157.48497.3400000None7.4700000
11/1/20157.46477.3500000None7.4600000
12/1/20157.5017.3500000None7.5000000
1/1/20167.56907.4000000None7.5600000
2/1/20167.52427.4600000None7.5100000
3/1/20167.39447.4900000None7.3700000
4/1/20167.54427.5000000None7.5300000
5/1/20167.24447.4600000None7.2200000
6/1/20167.42417.4500000None7.4100000
7/1/20167.36447.4100000None7.3500000
8/1/20167.21437.3600000None7.2000000
9/1/20167.34427.3500000None7.3400000
10/1/20167.43437.3300000None7.4200000
11/1/20167.49437.3800000None7.4800000
12/1/20167.59447.4000000None7.5800000
1/1/20177.66367.4500000None7.6400000
2/1/20177.62397.5200000None7.6100000
3/1/20176.93397.4500000None6.2900000
4/1/20177.67407.4900000None7.6600000
5/1/20177.66367.5200000None7.6500000
6/1/20177.27327.4700000None7.2700000
7/1/20177.48407.4400000None7.4700000
8/1/20177.42417.4100000None7.4100000
9/1/20177.33407.4700000None7.3300000
10/1/20177.73117.4800000None7.7200000
11/1/20177.87227.5200000None7.8500000
12/1/20177.64227.5800000None7.6300000

Salinity

Units: PSS Year
2017
Historical
period of record
High 15.98 19.24
Mean 0.35 0.32 0.81057
Low 0.11 0.00
No. of Samples 193 2,656

Five-year Rolling Average Graph

      
1/1/20130.3650.3600000PSS0.3600000
2/1/20130.4280.3900000PSS0.4200000
3/1/20130.3680.3800000PSS0.3500000
5/1/20130.3880.3800000PSS0.3800000
6/1/20130.21110.3500000PSS0.2000000
7/1/20130.24110.3200000PSS0.2400000
8/1/20130.23110.2800000PSS0.2300000
9/1/20130.23110.2600000PSS0.2300000
10/1/20130.34110.2700000PSS0.3400000
11/1/20130.35110.2700000PSS0.3500000
12/1/20130.34110.2900000PSS0.3300000
1/1/20140.33110.3000000PSS0.3200000
2/1/20140.30110.3200000PSS0.3000000
3/1/20140.33150.3300000PSS0.3300000
4/1/20140.29150.3200000PSS0.2900000
5/1/20140.30160.3200000PSS0.3000000
6/1/20140.27190.3000000PSS0.2700000
7/1/20140.19160.2800000PSS0.1900000
8/1/20140.32190.2800000PSS0.3200000
9/1/20140.29190.2800000PSS0.2900000
10/1/20140.30190.2800000PSS0.3000000
11/1/20140.31190.2800000PSS0.3100000
12/1/20140.33180.2900000PSS0.3300000
1/1/20150.31140.3100000PSS0.3000000
2/1/20150.31140.3100000PSS0.3100000
3/1/20150.35140.3200000PSS0.3500000
5/1/20150.29140.3200000PSS0.2900000
6/1/20150.3960.3300000PSS0.3900000
7/1/20150.28200.3200000PSS0.2700000
8/1/20150.26230.3100000PSS0.2500000
9/1/20150.30230.3000000PSS0.3000000
10/1/20150.41230.3200000PSS0.3600000
11/1/20151.62230.5400000PSS0.4900000
1/1/20160.27390.5700000PSS0.2700000
2/1/20160.31160.5800000PSS0.3100000
3/1/20160.35150.5900000PSS0.3500000
4/1/20161.04160.7200000PSS0.5100000
5/1/20160.28160.4500000PSS0.2700000
6/1/20160.28250.4200000PSS0.2800000
7/1/20160.26160.4200000PSS0.2600000
8/1/20160.22160.4100000PSS0.2100000
9/1/20160.25160.3900000PSS0.2400000
10/1/20160.30160.2700000PSS0.2900000
11/1/20160.36170.2800000PSS0.3500000
12/1/20160.42160.3000000PSS0.3700000
1/1/20170.75200.3800000PSS0.4600000
2/1/20170.43130.4200000PSS0.4000000
3/1/20170.44130.4500000PSS0.3800000
4/1/20170.89130.5500000PSS0.4400000
5/1/20171.61130.7600000PSS0.5400000
6/1/20170.29130.7400000PSS0.2900000
7/1/20170.29160.6600000PSS0.2800000
8/1/20170.28160.6300000PSS0.2800000
9/1/20170.22160.6000000PSS0.2200000
10/1/20170.3150.5000000PSS0.3100000
11/1/20170.3660.2900000PSS0.3500000
12/1/20170.3460.3000000PSS0.3300000

Specific conductance

Units: umho Year
2017
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

      
1/1/2013758.008758.0000000umho756.9800000
2/1/20133355.36142056.6800000umho1142.9000000
3/1/20134013.08122708.8100000umho1038.7600000
4/1/20136981.2543776.9200000umho1951.1000000
5/1/2013769.25123175.3900000umho768.7300000
6/1/2013392.95142711.6500000umho231.9400000
7/1/2013524.87152672.7900000umho519.1400000
8/1/2013518.43142199.9700000umho513.9900000
9/1/2013506.80151615.5900000umho489.2500000
10/1/2013670.7914563.8500000umho665.5800000
11/1/20132075.1315781.5000000umho905.1900000
12/1/20132482.63161129.7800000umho882.9500000
1/1/2014694.86141158.1100000umho690.8500000
2/1/2014649.79141180.0000000umho645.3500000
3/1/2014704.12171212.8900000umho697.7600000
4/1/2014597.87151200.7300000umho596.3400000
5/1/2014625.7218959.1700000umho624.7900000
6/1/2014569.0922640.2400000umho566.6300000
7/1/2014447.2119598.9700000umho437.3800000
8/1/2014665.0022601.5000000umho663.6900000
9/1/2014580.6822580.9300000umho577.1000000
10/1/2014589.3222579.5000000umho579.2200000
11/1/2014655.3622584.4400000umho654.2500000
12/1/2014673.8121601.9000000umho672.2800000
1/1/2015648.1316635.3800000umho626.6600000
2/1/2015662.1817634.9100000umho659.5100000
3/1/2015713.7117657.0900000umho712.7400000
4/1/2015752.502684.2800000umho752.4400000
5/1/2015633.0616680.5700000umho627.5300000
6/1/2015784.508699.0100000umho778.7500000
7/1/2015671.502702.9100000umho671.5000000
8/1/2015461.254669.4200000umho441.8500000
10/1/2015817.4129673.5400000umho740.7400000
11/1/20152670.92251081.1200000umho1000.1300000
12/1/2015758.5021075.9200000umho758.5000000
1/1/2016578.92501057.4000000umho573.4400000
2/1/2016624.95221090.1400000umho614.8000000
3/1/2016768.63241036.5600000umho752.1800000
4/1/20161465.41221144.5600000umho901.5400000
5/1/2016613.6724801.6800000umho594.1400000
6/1/2016579.8121771.9000000umho554.5900000
7/1/2016576.9224771.5700000umho564.1900000
8/1/2016478.2623747.1200000umho469.1700000
9/1/2016582.5022716.1000000umho545.3500000
10/1/2016618.6523574.9700000umho595.8600000
11/1/2016746.5723597.1200000umho719.1600000
12/1/20162307.1324885.0100000umho893.0000000
1/1/20171420.56161025.6100000umho919.0100000
2/1/2017844.40201086.6400000umho802.6300000
3/1/2017859.65201132.8300000umho770.6800000
4/1/20171301.93211246.7100000umho680.1000000
5/1/20172222.42191492.6800000umho1049.1400000
6/1/2017605.63111209.1000000umho604.0800000
7/1/2017617.56191075.2700000umho611.1700000
8/1/2017631.75201039.8200000umho608.7500000
9/1/2017465.2119974.0800000umho439.9200000
11/1/2017769.6411617.9600000umho734.9400000
12/1/2017769.6411650.7600000umho734.9400000

Temperature, water

Units: deg F Year
2017
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

      
1/1/201370.95670.9500000deg F70.9400000
2/1/201370.911070.9300000deg F70.6000000
3/1/201361.88967.9100000deg F61.7100000
4/1/201371.66368.8500000deg F71.6000000
5/1/201374.07969.8900000deg F73.9400000
6/1/201388.31972.9600000deg F86.8900000
7/1/201380.831174.6100000deg F80.8200000
8/1/201384.321076.8500000deg F84.3000000
9/1/201380.891180.0100000deg F80.8700000
10/1/201371.561080.0000000deg F71.4200000
11/1/201368.781179.1200000deg F68.7300000
12/1/201362.971274.8900000deg F62.8500000
1/1/201468.861072.9000000deg F68.8600000
2/1/201466.841069.9800000deg F66.7700000
3/1/201471.121268.3600000deg F71.0700000
4/1/201468.331167.8200000deg F68.2500000
5/1/201476.691369.1400000deg F76.6500000
6/1/201480.541672.0600000deg F80.5300000
7/1/201481.721474.2100000deg F81.6900000
8/1/201483.731677.0200000deg F83.7100000
9/1/201480.041678.5100000deg F80.0300000
10/1/201473.851679.4300000deg F73.7700000
11/1/201470.141678.3400000deg F70.0200000
12/1/201463.041575.4200000deg F63.0300000
1/1/201560.821171.9400000deg F60.6700000
2/1/201565.731268.9400000deg F65.7100000
3/1/201572.261267.6400000deg F72.2500000
4/1/201571.42167.2400000deg F71.4200000
5/1/201580.331168.9300000deg F80.3000000
6/1/201584.38572.4900000deg F84.3600000
7/1/201583.502376.2700000deg F83.4800000
8/1/201584.242779.3600000deg F84.1800000
9/1/201580.952580.8000000deg F80.9100000
10/1/201575.142781.4200000deg F75.1200000
11/1/201577.012580.8700000deg F77.0000000
12/1/201572.86178.9500000deg F72.8600000
1/1/201661.542675.2900000deg F61.5000000
2/1/201666.232172.2900000deg F66.1900000
3/1/201668.732370.2500000deg F68.6500000
4/1/201671.942169.7200000deg F71.8600000
5/1/201679.672370.1600000deg F79.6300000
6/1/201683.882072.0000000deg F83.7800000
7/1/201684.222375.7800000deg F84.1800000
8/1/201684.322278.7900000deg F84.2900000
9/1/201682.282181.0500000deg F82.2500000
10/1/201677.542281.9900000deg F77.5200000
11/1/201671.462280.6200000deg F71.4500000
12/1/201671.052378.4800000deg F71.0200000
1/1/201762.421574.8500000deg F62.3500000
2/1/201767.141971.9800000deg F67.0700000
3/1/201771.021970.1100000deg F71.0000000
4/1/201771.082069.0300000deg F71.0000000
5/1/201775.051869.6300000deg F74.9700000
6/1/201780.771171.2500000deg F80.7700000
7/1/201782.921974.6600000deg F82.9000000
8/1/201779.392076.7100000deg F79.0900000
9/1/201782.541978.6300000deg F82.5300000
11/1/201773.891179.9000000deg F73.3000000
12/1/201773.891178.5300000deg F73.3000000

Turbidity

Units: NTU Year
2017
Historical
period of record
High 65.00 112.00
Mean 4.6 4.17 6.74897
Low 0.38 0.091
No. of Samples 155 3,036

Five-year Rolling Average Graph

      
1/1/20134.3264.3200000NTU3.7600000
2/1/20133.5773.9500000NTU2.9300000
3/1/20133.9773.9500000NTU3.9000000
4/1/20134.4374.0700000NTU3.6100000
5/1/20138.5364.9600000NTU7.2700000
6/1/201313.1796.3300000NTU8.6600000
7/1/20137.69106.8900000NTU7.6400000
8/1/201310.6898.0800000NTU9.5500000
9/1/201314.94109.9100000NTU12.6200000
10/1/20137.43910.4100000NTU7.2500000
11/1/20137.471010.2300000NTU6.8800000
12/1/20136.32109.0900000NTU5.4600000
1/1/20145.38128.7000000NTU5.2300000
2/1/201410.63128.7000000NTU10.2500000
3/1/20146.23127.2400000NTU5.8300000
4/1/20143.79116.6400000NTU3.7900000
5/1/20144.17166.0900000NTU4.1200000
6/1/20146.99206.2000000NTU6.0100000
7/1/201412.11167.3200000NTU10.6700000
8/1/20145.93146.5400000NTU5.7000000
9/1/20144.77146.2900000NTU4.4500000
10/1/20147.62146.9300000NTU7.5500000
11/1/20145.06147.0800000NTU4.9400000
12/1/20145.31106.8000000NTU5.2100000
1/1/20154.67125.5600000NTU4.2800000
2/1/20158.91126.0600000NTU6.6900000
3/1/20153.85125.9000000NTU3.8000000
4/1/20152.8995.1200000NTU2.5700000
5/1/20153.27124.8200000NTU3.0700000
6/1/20153.23224.4700000NTU2.9300000
7/1/20155.36144.5900000NTU4.2600000
8/1/20157.99174.4300000NTU6.0400000
9/1/20156.85154.9300000NTU5.0300000
10/1/20154.99225.2800000NTU4.3200000
11/1/20156.34205.7900000NTU4.7900000
12/1/20153.4015.8200000NTU3.4000000
1/1/20165.90345.9100000NTU5.0700000
2/1/20165.82145.5500000NTU4.6600000
3/1/20166.59155.5100000NTU4.7500000
4/1/20164.41145.4100000NTU3.5000000
5/1/20163.55154.9500000NTU2.9900000
6/1/20165.52145.3000000NTU4.6200000
7/1/20166.73155.4400000NTU5.1600000
8/1/20168.22155.8400000NTU7.1300000
9/1/201610.81146.5400000NTU8.7600000
10/1/20169.22137.3400000NTU8.1900000
11/1/20168.75158.2100000NTU7.6500000
12/1/20166.18138.3200000NTU5.3900000
1/1/20176.14128.2200000NTU4.8800000
2/1/20179.40118.4200000NTU4.8200000
3/1/20177.34107.8400000NTU3.9900000
4/1/20178.38127.7000000NTU3.6100000
5/1/20174.84117.0500000NTU2.7200000
6/1/20177.13127.2100000NTU5.7700000
7/1/20175.99137.1800000NTU5.3600000
8/1/20176.28136.6600000NTU5.7000000
9/1/20176.67126.5500000NTU5.7600000
10/1/20175.7066.1000000NTU5.2100000
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
2017
Historical
period of record
High 0.0 0.1
Mean 0.0069 0.0078 0.00958567
Low 0.0036 0.0003
No. of Samples 12 382

Five-year Rolling Average Graph

     
1/1/20139.8230.0098200mg/l0.0098200
2/1/20133.3530.0065900mg/l0.0033500
3/1/20134.61120.0059300mg/l0.0039400
4/1/20135.76120.0058900mg/l0.0053900
5/1/20133.4250.0053900mg/l0.0032700
6/1/201317.2030.0073600mg/l0.0172000
7/1/201315.57120.0083200mg/l0.0154100
8/1/201319.6030.0110300mg/l0.0196000
9/1/20135.6370.0112000mg/l0.0038800
10/1/201317.1880.0131000mg/l0.0155900
11/1/201324.89110.0166800mg/l0.0126200
12/1/20136.2630.0148600mg/l0.0062600
1/1/20147.6740.0135400mg/l0.0076700
2/1/20145.8040.0112400mg/l0.0058000
3/1/20143.8040.0109300mg/l0.0038000
4/1/201416.5040.0108200mg/l0.0165000
5/1/201411.2040.0085400mg/l0.0112000
6/1/201410.2040.0092000mg/l0.0102000
7/1/20149.7240.0095400mg/l0.0097200
8/1/20149.8540.0102100mg/l0.0098500
9/1/20145.6140.0105100mg/l0.0056100
10/1/201415.8040.0104000mg/l0.0158000
11/1/20147.6740.0098100mg/l0.0076700
12/1/20145.2630.0089900mg/l0.0052600
1/1/20154.4530.0081100mg/l0.0044500
2/1/20158.8930.0079500mg/l0.0088900
3/1/201513.3030.0092300mg/l0.0133000
4/1/20155.4820.0075100mg/l0.0054800
5/1/201512.7030.0083500mg/l0.0127000
6/1/20159.0930.0089900mg/l0.0090900
7/1/201510.8020.0100400mg/l0.0108000
8/1/201511.0020.0104000mg/l0.0110000
9/1/201513.4020.0104100mg/l0.0134000
10/1/20156.0710.0105100mg/l0.0060700
11/1/20157.1710.0095900mg/l0.0071700
1/1/201611.4020.0098100mg/l0.0114000
2/1/201611.5010.0099100mg/l0.0115000
3/1/20167.4330.0087100mg/l0.0073300
4/1/20163.2410.0081500mg/l0.0032400
5/1/201619.8330.0106800mg/l0.0189400
6/1/201617.5010.0118200mg/l0.0175000
7/1/201613.2030.0121200mg/l0.0121200
8/1/20164.9510.0110300mg/l0.0049500
9/1/20166.4210.0108600mg/l0.0064200
10/1/201637.8010.0166200mg/l0.0378000
11/1/20167.2610.0145200mg/l0.0072600
12/1/20167.0110.0127700mg/l0.0070100
1/1/20173.9610.0112300mg/l0.0039600
2/1/20174.0810.0110900mg/l0.0040800
3/1/20176.0510.0110300mg/l0.0060500
4/1/20173.5610.0053200mg/l0.0035600
5/1/20176.2910.0051600mg/l0.0062900
6/1/201715.8010.0066200mg/l0.0158000
7/1/20174.7310.0067500mg/l0.0047300
8/1/20177.8910.0073900mg/l0.0078900
9/1/201715.7010.0090000mg/l0.0157000
10/1/201711.2010.0102700mg/l0.0112000
11/1/201712.3010.0112700mg/l0.0123000
12/1/20174.3710.0093700mg/l0.0043700
Target
mg/l
Threshold
0.011 mg/l

Nitrogen, Total

We were unable to determine a trend for the data available.
Units: mg/l Year
2017
Historical
period of record
High 1.4 8.9
Mean 1.013 1.0233 1.33114184
Low 0.699 0.131
No. of Samples 12 262

Five-year Rolling Average Graph

     
1/1/2013689.0010.6890000mg/l0.6890000
2/1/2013519.0010.6040000mg/l0.5190000
3/1/2013778.0040.6620000mg/l0.7244200
4/1/2013790.0040.6940000mg/l0.7853800
5/1/2013879.5020.7311000mg/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
1/1/2014636.0021.0588100mg/l0.6360000
2/1/2014957.0020.9841400mg/l0.9570000
3/1/2014602.0020.8600800mg/l0.6020000
4/1/20141486.0020.9435000mg/l1.4860000
5/1/20141197.0020.9365000mg/l1.1970000
6/1/2014929.0010.9678300mg/l0.9290000
7/1/20141231.0011.0670000mg/l1.2310000
8/1/20141102.0011.0911700mg/l1.1020000
9/1/20141045.0011.1650000mg/l1.0450000
10/1/20141403.0021.1511700mg/l1.4030000
11/1/2014726.0021.0726700mg/l0.7260000
12/1/2014835.0011.0570000mg/l0.8350000
1/1/2015904.0011.0025000mg/l0.9040000
2/1/20151196.0011.0181700mg/l1.1960000
3/1/20151063.0011.0211700mg/l1.0630000
5/1/20151061.0011.0118000mg/l1.0610000
6/1/2015967.0011.0382000mg/l0.9670000
1/1/20161223.0011.2230000mg/l1.2230000
2/1/20161214.0011.2185000mg/l1.2140000
3/1/2016861.0021.0993300mg/l0.8559600
4/1/2016512.0010.9525000mg/l0.5120000
5/1/2016995.0020.9610000mg/l0.9630800
6/1/20161201.0011.0010000mg/l1.2010000
7/1/20161230.0021.0021700mg/l1.2289800
8/1/20161653.0011.0753300mg/l1.6530000
9/1/20161551.0011.1903300mg/l1.5510000
10/1/20161839.0011.4115000mg/l1.8390000
11/1/20161125.0011.4331700mg/l1.1250000
12/1/2016980.0011.3963300mg/l0.9800000
1/1/20171101.0011.3748300mg/l1.1010000
2/1/2017699.0011.2158300mg/l0.6990000
3/1/2017946.0011.1150000mg/l0.9460000
4/1/2017760.0010.9351700mg/l0.7600000
5/1/2017817.0010.8838300mg/l0.8170000
6/1/20171233.0010.9260000mg/l1.2330000
7/1/2017982.0010.9061700mg/l0.9820000
8/1/20171072.0010.9683300mg/l1.0720000
9/1/20171426.0011.0483300mg/l1.4260000
10/1/20171354.0011.1473300mg/l1.3540000
11/1/2017841.0011.1513300mg/l0.8410000
12/1/20171226.0011.1501700mg/l1.2260000

Phosphorus, Total

We were unable to determine a trend for the data available.
Units: mg/l Year
2017
Historical
period of record
High 0.6 2.2
Mean 0.3632 0.3007 0.22023212
Low 0.269 0.084
No. of Samples 12 427

Five-year Rolling Average Graph

     
1/1/2013172.0030.1720000mg/l0.1720000
2/1/201388.0030.1300000mg/l0.0880000
3/1/2013185.5080.1485000mg/l0.1690800
4/1/2013344.7580.1975600mg/l0.3019100
5/1/2013184.2540.1949000mg/l0.1840300
6/1/2013365.0030.2232500mg/l0.3650000
7/1/2013445.0080.2687500mg/l0.4437200
8/1/2013379.0030.3172500mg/l0.3790000
9/1/2013464.0050.3636700mg/l0.4504200
10/1/2013442.0060.3798800mg/l0.4036900
11/1/2013264.4370.3932400mg/l0.2561000
12/1/2013211.0030.3675700mg/l0.2110000
1/1/2014214.0040.3290700mg/l0.2140000
2/1/2014266.0040.3102400mg/l0.2660000
3/1/2014227.0040.2707400mg/l0.2270000
4/1/2014357.0040.2565700mg/l0.3570000
5/1/2014369.0040.2740000mg/l0.3690000
6/1/2014260.0040.2821700mg/l0.2600000
7/1/2014393.0040.3120000mg/l0.3930000
8/1/2014455.0040.3435000mg/l0.4550000
9/1/2014466.0040.3833300mg/l0.4660000
10/1/2014324.0040.3778300mg/l0.3240000
11/1/2014159.0040.3428300mg/l0.1590000
12/1/2014259.0030.3426700mg/l0.2590000
1/1/2015203.0030.3110000mg/l0.2030000
2/1/2015214.0030.2708300mg/l0.2140000
3/1/2015374.0030.2555000mg/l0.3740000
4/1/2015301.0020.2516700mg/l0.3010000
5/1/2015376.0030.2878300mg/l0.3760000
6/1/2015305.0030.2955000mg/l0.3050000
7/1/2015339.0020.3181700mg/l0.3390000
8/1/2015431.0020.3543300mg/l0.4310000
9/1/2015292.0020.3406700mg/l0.2920000
10/1/2015138.0010.3135000mg/l0.1380000
11/1/2015201.0010.2843300mg/l0.2010000
1/1/2016239.0020.2602000mg/l0.2390000
2/1/2016204.0010.2148000mg/l0.2040000
3/1/2016322.0020.2208000mg/l0.2996000
4/1/2016271.0010.2474000mg/l0.2710000
5/1/2016587.0020.3246000mg/l0.5846000
6/1/2016366.0010.3315000mg/l0.3660000
7/1/2016382.5020.3554200mg/l0.3795400
8/1/2016443.0010.3952500mg/l0.4430000
9/1/2016395.0010.4074200mg/l0.3950000
10/1/2016301.0010.4124200mg/l0.3010000
11/1/2016250.0010.3562500mg/l0.2500000
12/1/2016243.0010.3357500mg/l0.2430000
1/1/2017428.0010.3433300mg/l0.4280000
2/1/2017269.0010.3143300mg/l0.2690000
3/1/2017305.0010.2993300mg/l0.3050000
4/1/2017293.0010.2980000mg/l0.2930000
5/1/2017318.0010.3093300mg/l0.3180000
6/1/2017359.0010.3286700mg/l0.3590000
7/1/2017447.0010.3318300mg/l0.4470000
8/1/2017444.0010.3610000mg/l0.4440000
9/1/2017572.0010.4055000mg/l0.5720000
10/1/2017341.0010.4135000mg/l0.3410000
11/1/2017315.0010.4130000mg/l0.3150000
12/1/2017368.0010.4145000mg/l0.3680000
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
2017
Historical
period of record
High 82.5 210.0
Mean 51.72 62.04 25.261
Low 32.10 8.70
No. of Samples 16 429

Five-year Rolling Average Graph

     
1/1/201368.60368.6000000percent (%)68.6000000
2/1/201382.58475.5900000percent (%)82.5300000
3/1/2013121.91991.0300000percent (%)113.0700000
4/1/201351.28681.0900000percent (%)48.7800000
5/1/2013179.001100.6700000percent (%)179.0000000
6/1/201343.50391.1500000percent (%)43.5000000
7/1/201330.18984.7400000percent (%)21.8600000
8/1/201356.50380.4000000percent (%)56.5000000
9/1/201350.14568.4300000percent (%)50.1000000
10/1/201366.56770.9800000percent (%)66.3600000
11/1/201379.07654.3300000percent (%)78.9400000
12/1/201387.98561.7400000percent (%)86.0600000
1/1/201469.00368.2100000percent (%)69.0000000
2/1/201484.40472.8600000percent (%)84.4000000
3/1/201483.00478.3400000percent (%)83.0000000
4/1/201486.10481.5900000percent (%)86.1000000
5/1/201446.40476.1500000percent (%)46.4000000
6/1/201439.80468.1200000percent (%)39.8000000
7/1/201483.30470.5000000percent (%)83.3000000
8/1/201443.30463.6500000percent (%)43.3000000
9/1/201426.70454.2700000percent (%)26.7000000
10/1/201427.50444.5000000percent (%)27.5000000
11/1/201447.00444.6000000percent (%)47.0000000
12/1/201489.20452.8300000percent (%)89.2000000
1/1/201561.60349.2200000percent (%)61.6000000
2/1/201592.30357.3800000percent (%)92.3000000
3/1/201539.20359.4700000percent (%)39.2000000
5/1/201554.30367.3200000percent (%)54.3000000
7/1/201539.40256.3000000percent (%)39.4000000
8/1/201586.10254.7500000percent (%)86.1000000
9/1/201530.40252.5500000percent (%)30.4000000
10/1/201558.90253.8200000percent (%)58.9000000
11/1/201563.90255.7400000percent (%)63.9000000
1/1/201679.40463.7400000percent (%)79.4000000
2/1/201662.50259.0200000percent (%)62.5000000
3/1/201656.93364.3300000percent (%)55.8500000
4/1/201682.20268.9900000percent (%)82.2000000
5/1/201633.20362.8500000percent (%)32.8700000
6/1/201653.97361.3700000percent (%)52.6200000
7/1/201657.07357.6500000percent (%)56.9900000
8/1/201648.50255.3100000percent (%)48.5000000
9/1/201649.50254.0700000percent (%)49.5000000
10/1/201623.70244.3200000percent (%)23.7000000
11/1/201637.40245.0200000percent (%)37.4000000
12/1/201646.30243.7500000percent (%)46.3000000
1/1/201759.95244.2300000percent (%)59.9000000
2/1/201749.60144.4100000percent (%)49.6000000
3/1/201766.60147.2600000percent (%)66.6000000
4/1/201739.20149.8400000percent (%)39.2000000
5/1/201759.50153.5300000percent (%)59.5000000
6/1/201779.00158.9800000percent (%)79.0000000
7/1/201732.91254.4700000percent (%)32.9100000
8/1/201732.10251.5500000percent (%)32.1000000
9/1/201759.42250.3600000percent (%)59.4200000
10/1/201760.70153.9400000percent (%)60.7000000
11/1/201782.50157.7700000percent (%)82.5000000
12/1/201760.90154.7600000percent (%)60.9000000
Target
percent (%)
Threshold
56.00 percent (%)

BOD, Biochemical oxygen demand

Units: mg/l Year
2017
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

     
1/1/20131.9431.9400000mg/l1.9400000
2/1/20130.8931.4200000mg/l0.8900000
3/1/20131.5781.4700000mg/l1.3200000
4/1/20131.3381.4300000mg/l1.2900000
5/1/20131.1741.3800000mg/l1.1600000
6/1/20131.3231.3700000mg/l1.3200000
7/1/20131.3681.2700000mg/l1.1800000
8/1/20130.6531.2300000mg/l0.6500000
9/1/20131.5351.2300000mg/l1.2300000
10/1/20131.3461.2300000mg/l1.2400000
11/1/20131.7871.3300000mg/l1.4300000
12/1/20131.4131.3500000mg/l1.4100000
1/1/20141.5341.3700000mg/l1.5300000
2/1/20140.5041.3500000mg/l0.5000000
3/1/20141.3141.3100000mg/l1.3100000
4/1/20141.1041.2700000mg/l1.1000000
5/1/20143.4041.5400000mg/l3.4000000
6/1/20141.0441.4800000mg/l1.0400000
7/1/20140.5041.3100000mg/l0.5000000
8/1/20140.7841.3600000mg/l0.7800000
9/1/20140.9041.2900000mg/l0.9000000
10/1/20140.8541.2500000mg/l0.8500000
11/1/20141.0640.8600000mg/l1.0600000
12/1/20140.9730.8400000mg/l0.9700000
1/1/20151.1030.9400000mg/l1.1000000
2/1/20151.5231.0700000mg/l1.5200000
3/1/20151.6831.2000000mg/l1.6800000
4/1/20151.2921.2700000mg/l1.2900000
5/1/20151.0831.2700000mg/l1.0800000
6/1/20151.2531.3200000mg/l1.2500000
7/1/20150.7121.2600000mg/l0.7100000
8/1/20151.1121.1900000mg/l1.1100000
9/1/20151.0221.0800000mg/l1.0200000
10/1/20150.6510.9700000mg/l0.6500000
11/1/20151.1810.9900000mg/l1.1800000
1/1/20161.3821.0700000mg/l1.3800000
2/1/20160.9111.0300000mg/l0.9100000
3/1/20161.5121.1300000mg/l1.5000000
4/1/20160.6311.1200000mg/l0.6300000
5/1/20162.4111.3700000mg/l2.4100000
6/1/20161.1811.3400000mg/l1.1800000
7/1/20161.0011.2700000mg/l1.0000000
8/1/20161.0911.3000000mg/l1.0900000
9/1/20161.0011.2200000mg/l1.0000000
10/1/20162.0611.4600000mg/l2.0600000
11/1/20161.5211.3100000mg/l1.5200000
12/1/20161.0811.2900000mg/l1.0800000
2/1/20171.1011.3500000mg/l1.1000000
3/1/20171.8711.5300000mg/l1.8700000
4/1/20171.2611.3700000mg/l1.2600000
5/1/20171.7111.4000000mg/l1.7100000
6/1/20171.9621.5800000mg/l1.9600000
7/1/20171.0311.4900000mg/l1.0300000
8/1/20171.0011.4700000mg/l1.0000000
9/1/20171.4111.4000000mg/l1.4100000
10/1/20171.1411.3800000mg/l1.1400000
11/1/20171.7411.3800000mg/l1.7400000
12/1/20171.0011.2200000mg/l1.0000000

Color

Units: PCU Year
2017
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

     
2/1/201660.00160.0000000PCU60.0000000
3/1/201640.00150.0000000PCU40.0000000
4/1/201625.00141.6700000PCU25.0000000
5/1/201660.00146.2500000PCU60.0000000
6/1/2016110.00159.0000000PCU110.0000000
7/1/201650.00157.5000000PCU50.0000000
8/1/2016160.00174.1700000PCU160.0000000
9/1/201680.00180.8300000PCU80.0000000
10/1/201680.00190.0000000PCU80.0000000
11/1/201630.00185.0000000PCU30.0000000
12/1/201630.00171.6700000PCU30.0000000
1/1/201740.00170.0000000PCU40.0000000
2/1/201740.00150.0000000PCU40.0000000
3/1/201740.00143.3300000PCU40.0000000
4/1/201730.00135.0000000PCU30.0000000
5/1/201720.00133.3300000PCU20.0000000
6/1/2017100.00245.0000000PCU100.0000000
7/1/201780.00151.6700000PCU80.0000000
8/1/2017100.00161.6700000PCU100.0000000
9/1/2017100.00171.6700000PCU100.0000000
10/1/2017100.00183.3300000PCU100.0000000
11/1/201770.00191.6700000PCU70.0000000
12/1/201770.00186.6700000PCU70.0000000

Enterococcus Group Bacteria

Units: cfu/100ml Year
2017
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

     
8/1/20142200.0012200.0000000cfu/100ml2200.0000000
10/1/2015110.001110.0000000cfu/100ml110.0000000
11/1/20151600.001855.0000000cfu/100ml1600.0000000
1/1/20163600.0021770.0000000cfu/100ml3600.0000000
2/1/20161700.0011752.5000000cfu/100ml1700.0000000
3/1/2016150.0011432.0000000cfu/100ml150.0000000
4/1/2016190.0011448.0000000cfu/100ml190.0000000
6/1/2016770.0011282.0000000cfu/100ml770.0000000
7/1/2016250.001612.0000000cfu/100ml250.0000000
8/1/20162400.001752.0000000cfu/100ml2400.0000000
9/1/20161200.001962.0000000cfu/100ml1200.0000000
10/1/2016360.001996.0000000cfu/100ml360.0000000
11/1/2016130.001851.6700000cfu/100ml130.0000000
12/1/2016230.001761.6700000cfu/100ml230.0000000
1/1/2017540.001810.0000000cfu/100ml540.0000000
2/1/2017530.001498.3300000cfu/100ml530.0000000
3/1/2017190.001330.0000000cfu/100ml190.0000000
4/1/2017350.001328.3300000cfu/100ml350.0000000
5/1/201710.001308.3300000cfu/100ml10.0000000
6/1/2017580.001366.6700000cfu/100ml580.0000000
7/1/2017900.001426.6700000cfu/100ml900.0000000
8/1/2017490.001420.0000000cfu/100ml490.0000000
9/1/20177400.0011621.6700000cfu/100ml7400.0000000
10/1/20171900.0011880.0000000cfu/100ml1900.0000000
11/1/2017210.0011913.3300000cfu/100ml210.0000000
12/1/20173300.0012366.6700000cfu/100ml3300.0000000
Target
cfu/100ml
Threshold
cfu/100ml

Nitrogen, Ammonia + Ammonium as N

Units: ug/l Year
2017
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

     
1/1/2013123.003123.0000000ug/l123.0000000
2/1/201372.00397.5000000ug/l72.0000000
3/1/201352.33982.4400000ug/l41.0300000
4/1/201348.44973.9400000ug/l37.9100000
5/1/201314.75462.1000000ug/l14.5700000
6/1/201397.00367.9200000ug/l97.0000000
7/1/201344.89954.9000000ug/l32.8600000
8/1/201316.00345.5700000ug/l16.0000000
9/1/201351.20545.3800000ug/l51.1800000
10/1/201362.00747.6400000ug/l56.1500000
11/1/201345.75852.8100000ug/l30.3700000
12/1/201334.00342.3100000ug/l34.0000000
1/1/201474.42547.2300000ug/l23.3600000
2/1/201432.81550.0300000ug/l10.3000000
3/1/201436.01547.5000000ug/l11.3000000
4/1/201469.02448.6700000ug/l16.3600000
5/1/201430.01446.0500000ug/l7.1100000
6/1/20146.40541.4500000ug/l2.0100000
7/1/201428.01533.7100000ug/l8.7900000
8/1/201446.41535.9800000ug/l14.5700000
9/1/201456.01539.3100000ug/l17.5800000
10/1/201475.22540.3400000ug/l23.6100000
11/1/201430.41540.4100000ug/l9.5500000
12/1/2014136.00362.0100000ug/l136.0000000
1/1/201599.00373.8400000ug/l99.0000000
2/1/20158.00367.4400000ug/l8.0000000
3/1/201577.00370.9400000ug/l77.0000000
4/1/201591.00273.5700000ug/l91.0000000
5/1/2015145.00392.6700000ug/l145.0000000
6/1/201541.00376.8300000ug/l41.0000000
7/1/201566.00271.3300000ug/l66.0000000
8/1/201573.00282.1700000ug/l73.0000000
9/1/201566.00280.3300000ug/l66.0000000
10/1/201541.00172.0000000ug/l41.0000000
11/1/20158.00149.1700000ug/l8.0000000
1/1/201633.53244.3100000ug/l2.1200000
2/1/2016105.00150.7100000ug/l105.0000000
3/1/201665.00150.5100000ug/l65.0000000
4/1/201647.00151.7100000ug/l47.0000000
5/1/201642.00158.5100000ug/l42.0000000
7/1/201674.00166.6000000ug/l74.0000000
9/1/2016104.00166.7500000ug/l104.0000000
12/1/2016154.001110.6700000ug/l154.0000000
1/1/2017175.001144.3300000ug/l175.0000000
2/1/2017100.001133.2500000ug/l100.0000000
6/1/2017199.002158.0000000ug/l199.0000000
12/1/2017115.001115.0000000ug/l115.0000000

Nitrogen, Kjeldahl

Units: ug/l Year
2017
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

     
1/1/2013637.003637.0000000ug/l637.0000000
2/1/2013494.003565.5000000ug/l494.0000000
3/1/2013640.638590.5400000ug/l588.1100000
4/1/2013712.388621.0000000ug/l709.7100000
5/1/2013904.254677.6500000ug/l902.1400000
6/1/20131260.003774.7100000ug/l1260.0000000
7/1/20131310.008886.8800000ug/l1295.6700000
8/1/20131240.0031011.2100000ug/l1240.0000000
9/1/20131128.0051092.4400000ug/l1126.4900000
10/1/2013811.0061108.8800000ug/l806.3200000
11/1/2013876.4371104.2400000ug/l855.0900000
12/1/2013699.0031010.7400000ug/l699.0000000
1/1/2014588.004890.4100000ug/l588.0000000
2/1/2014814.004819.4100000ug/l814.0000000
3/1/2014584.004728.7400000ug/l584.0000000
4/1/20141350.004818.5700000ug/l1350.0000000
5/1/20141090.004854.1700000ug/l1090.0000000
6/1/2014825.004875.1700000ug/l825.0000000
7/1/20141060.004953.8300000ug/l1060.0000000
8/1/2014960.004978.1700000ug/l960.0000000
9/1/2014930.0041035.8300000ug/l930.0000000
10/1/20141100.004994.1700000ug/l1100.0000000
11/1/2014592.004911.1700000ug/l592.0000000
12/1/2014711.003892.1700000ug/l711.0000000
1/1/2015785.003846.3300000ug/l785.0000000
2/1/20151030.003858.0000000ug/l1030.0000000
3/1/20151030.003874.6700000ug/l1030.0000000
4/1/2015813.002826.8300000ug/l813.0000000
5/1/2015972.003890.1700000ug/l972.0000000
6/1/2015956.003931.0000000ug/l956.0000000
7/1/20151000.002966.8300000ug/l1000.0000000
8/1/20151280.0021008.5000000ug/l1280.0000000
9/1/20151130.0021025.1700000ug/l1130.0000000
10/1/2015710.0011008.0000000ug/l710.0000000
11/1/2015626.001950.3300000ug/l626.0000000
1/1/2016971.002943.4000000ug/l971.0000000
2/1/2016880.001863.4000000ug/l880.0000000
3/1/2016817.502800.9000000ug/l814.2800000
4/1/2016492.001757.3000000ug/l492.0000000
5/1/2016960.002824.1000000ug/l929.5200000
6/1/20161150.001878.4200000ug/l1150.0000000
7/1/20161085.002897.4200000ug/l1084.9000000
8/1/20161390.001982.4200000ug/l1390.0000000
9/1/20161260.0011056.1700000ug/l1260.0000000
10/1/20161470.0011219.1700000ug/l1470.0000000
11/1/20161040.0011232.5000000ug/l1040.0000000
12/1/2016890.0011189.1700000ug/l890.0000000
1/1/20171020.0011178.3300000ug/l1020.0000000
2/1/2017679.0011059.8300000ug/l679.0000000
3/1/2017932.0011005.1700000ug/l932.0000000
4/1/2017753.001885.6700000ug/l753.0000000
5/1/2017789.001843.8300000ug/l789.0000000
6/1/20171080.002875.5000000ug/l1080.0000000
7/1/2017820.001842.1700000ug/l820.0000000
8/1/2017861.001872.5000000ug/l861.0000000
9/1/20171100.001900.5000000ug/l1100.0000000
10/1/2017997.001941.1700000ug/l997.0000000
11/1/2017621.001913.1700000ug/l621.0000000
12/1/2017826.001870.8300000ug/l826.0000000

Nitrogen, Nitrite + Nitrate as N

Units: ug/l Year
2017
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

     
1/1/201352.00352.0000000ug/l52.0000000
2/1/201325.00338.5000000ug/l25.0000000
3/1/201333.78936.9300000ug/l31.2200000
4/1/201334.89936.4200000ug/l22.9000000
5/1/201316.00332.3300000ug/l16.0000000
6/1/2013113.00345.7800000ug/l113.0000000
7/1/2013162.00964.1100000ug/l158.2600000
8/1/2013165.00387.4500000ug/l165.0000000
9/1/2013231.405120.3800000ug/l214.2800000
10/1/2013169.577142.8300000ug/l169.0700000
11/1/2013125.638161.1000000ug/l105.9000000
12/1/201342.003149.2700000ug/l42.0000000
1/1/201448.004130.2700000ug/l48.0000000
2/1/2014143.004126.6000000ug/l143.0000000
3/1/201418.00491.0300000ug/l18.0000000
4/1/2014136.00485.4400000ug/l136.0000000
5/1/2014107.00482.3300000ug/l107.0000000
6/1/2014104.00492.6700000ug/l104.0000000
7/1/2014171.004113.1700000ug/l171.0000000
8/1/2014142.004113.0000000ug/l142.0000000
9/1/2014115.004129.1700000ug/l115.0000000
10/1/2014303.004157.0000000ug/l303.0000000
11/1/2014134.004161.5000000ug/l134.0000000
12/1/2014124.003164.8300000ug/l124.0000000
1/1/2015119.003156.1700000ug/l119.0000000
2/1/2015166.003160.1700000ug/l166.0000000
3/1/201533.003146.5000000ug/l33.0000000
4/1/201527.002100.5000000ug/l27.0000000
5/1/201589.00393.0000000ug/l89.0000000
6/1/201511.00374.1700000ug/l11.0000000
7/1/2015128.00275.6700000ug/l128.0000000
8/1/2015148.00272.6700000ug/l148.0000000
9/1/2015534.002156.1700000ug/l534.0000000
11/1/201557.001175.6000000ug/l57.0000000
1/1/2016252.002247.7500000ug/l252.0000000
2/1/2016334.001294.2500000ug/l334.0000000
3/1/201643.502171.6300000ug/l38.3700000
4/1/201620.001141.3000000ug/l20.0000000
5/1/201625.001134.9000000ug/l25.0000000
7/1/2016145.002113.5000000ug/l140.7100000
8/1/2016263.00199.3000000ug/l263.0000000
9/1/2016291.001148.8000000ug/l291.0000000
10/1/2016369.001218.6000000ug/l369.0000000
2/1/201720.001226.6700000ug/l20.0000000
3/1/201714.001134.3300000ug/l14.0000000
6/1/2017153.00262.3300000ug/l153.0000000
7/1/2017162.00187.2500000ug/l162.0000000
8/1/2017211.001135.0000000ug/l211.0000000
9/1/2017326.001213.0000000ug/l326.0000000
10/1/2017357.001241.8000000ug/l357.0000000
11/1/2017220.001238.1700000ug/l220.0000000
12/1/2017400.001279.3300000ug/l400.0000000

Oysters

Units: Year
2017
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
1/1/201322.83122.8300000%22.8300000
1/1/201468.10168.1000000%68.1000000
1/1/201567.75167.7500000%67.7500000
1/1/201655.56155.5600000%55.5600000
1/1/201747.06147.0600000%47.0600000

pH

Units: None Year
2017
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

     
1/1/20137.5737.5700000None7.5700000
2/1/20137.6147.5900000None7.6100000
3/1/20137.7097.6300000None7.7000000
4/1/20137.3767.5600000None7.3700000
5/1/20137.9417.6400000None7.9400000
6/1/20136.7137.4800000None6.7100000
7/1/20137.1997.4200000None7.1800000
8/1/20137.3637.3800000None7.3600000
9/1/20137.2057.3000000None7.2000000
10/1/20137.3577.2900000None7.3500000
11/1/20137.3067.1900000None7.3000000
12/1/20136.8457.2100000None6.7900000
1/1/20146.9137.1600000None6.9100000
2/1/20147.1447.1200000None7.1400000
3/1/20147.1347.1100000None7.1300000
4/1/20147.2537.1000000None7.2500000
5/1/20147.3237.1000000None7.3200000
6/1/20147.3747.1900000None7.3700000
7/1/20146.9547.1900000None6.9500000
8/1/20147.3847.2300000None7.3800000
9/1/20147.5647.3100000None7.5600000
10/1/20146.9447.2500000None6.9400000
11/1/20147.4647.2800000None7.4600000
12/1/20147.4237.2900000None7.4200000
1/1/20157.1737.3200000None7.1700000
2/1/20157.3237.3100000None7.3200000
3/1/20157.2037.2500000None7.2000000
5/1/20157.3037.2800000None7.3000000
7/1/20157.3527.2900000None7.3500000
8/1/20157.1627.2500000None7.1600000
9/1/20157.3327.2900000None7.3300000
10/1/20157.6237.3500000None7.6200000
11/1/20157.2837.3500000None7.2800000
1/1/20167.7167.4200000None7.7100000
2/1/20167.1727.4200000None7.1700000
3/1/20166.9837.3500000None6.9700000
4/1/20166.9927.2300000None6.9600000
5/1/20167.2837.2300000None7.2800000
6/1/20167.5127.2700000None7.5100000
7/1/20167.3537.2100000None7.3500000
8/1/20167.2627.2300000None7.2500000
9/1/20167.3427.2900000None7.3400000
10/1/20167.4627.3700000None7.4600000
11/1/20167.2627.3600000None7.2500000
12/1/20167.0927.2900000None7.0600000
1/1/20177.7217.3600000None7.7200000
2/1/20177.7417.4400000None7.7400000
3/1/20177.6717.4900000None7.6700000
4/1/20177.7227.5300000None7.7100000
5/1/20177.5827.5900000None7.5800000
6/1/20177.2437.6100000None7.2400000
7/1/20177.3127.5400000None7.3100000
8/1/20177.3327.4800000None7.3200000
9/1/20177.3927.4300000None7.3900000
10/1/20177.5017.3900000None7.5000000
11/1/20177.6727.4100000None7.6600000
12/1/20177.5727.4600000None7.5700000

Salinity

Units: PSS Year
2017
Historical
period of record
High 33.1 37.5
Mean 9.04 13.87 11.39608
Low 0.24 0.00
No. of Samples 16 2,421

Five-year Rolling Average Graph

     
1/1/201325.14325.1400000PSS25.1400000
2/1/201330.35327.7500000PSS30.3500000
3/1/201329.07628.1900000PSS28.8800000
4/1/201332.00329.1400000PSS32.0000000
6/1/20130.76323.4600000PSS0.7600000
7/1/20137.99720.0300000PSS2.4700000
8/1/20130.43314.0500000PSS0.4300000
9/1/201310.99310.4300000PSS10.9900000
10/1/201313.0376.6400000PSS11.2700000
11/1/201318.5548.6300000PSS18.0700000
12/1/201317.81311.4700000PSS17.8100000
1/1/201420.16313.5000000PSS20.1600000
2/1/20145.66414.3700000PSS5.6600000
3/1/201415.05415.0400000PSS15.0500000
4/1/20148.01414.2100000PSS8.0100000
5/1/201422.36414.8400000PSS22.3600000
6/1/20140.75412.0000000PSS0.7500000
7/1/20141.2148.8400000PSS1.2100000
8/1/201426.03412.2400000PSS26.0300000
9/1/201429.59414.6600000PSS29.5900000
10/1/201420.89416.8100000PSS20.8900000
11/1/201429.83418.0500000PSS29.8300000
12/1/201426.91422.4100000PSS26.9100000
1/1/201525.60326.4800000PSS25.6000000
2/1/201514.04324.4800000PSS14.0400000
3/1/201523.19323.4100000PSS23.1900000
5/1/201527.68323.4800000PSS27.6800000
7/1/201524.06222.2400000PSS24.0600000
8/1/20150.24218.7900000PSS0.2400000
9/1/201522.37218.5900000PSS22.3700000
10/1/201526.76220.2200000PSS26.7600000
11/1/201527.92220.2700000PSS27.9200000
1/1/20160.44415.5500000PSS0.4400000
2/1/201612.48217.9900000PSS12.4800000
3/1/201623.90218.3000000PSS23.9000000
4/1/201628.25218.6000000PSS28.2500000
5/1/201625.89218.1900000PSS25.8900000
6/1/20169.18316.6900000PSS3.3800000
7/1/201616.84219.4200000PSS16.8400000
8/1/20160.32217.4000000PSS0.3200000
9/1/20165.89214.4000000PSS5.8900000
10/1/20166.92210.8400000PSS6.9200000
11/1/201622.55210.2800000PSS22.5500000
12/1/201622.89212.5700000PSS22.8900000
1/1/201724.91213.9100000PSS24.9000000
2/1/201719.78117.1600000PSS19.7800000
3/1/201723.36120.0700000PSS23.3600000
4/1/201728.42123.6500000PSS28.4200000
5/1/201733.13125.4200000PSS33.1300000
6/1/20170.49121.6800000PSS0.4900000
7/1/201714.79220.0000000PSS14.7900000
8/1/201721.53220.2900000PSS21.5300000
9/1/20170.24216.4300000PSS0.2400000
10/1/20178.63113.1400000PSS8.6300000
11/1/201715.55110.2100000PSS15.5500000
12/1/201719.33113.3500000PSS19.3300000

Specific conductance

Units: umho Year
2017
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

     
1/1/201339461.00339461.0000000umho39461.0000000
2/1/201339155.75439308.3800000umho36039.3200000
3/1/201341309.00939975.2500000umho40749.6500000
4/1/201337599.67639381.3600000umho32528.2700000
5/1/2013778.00131660.6800000umho778.0000000
6/1/20131468.00326628.5700000umho1468.0000000
7/1/201311638.78921991.5300000umho3039.6100000
8/1/2013886.00315613.2400000umho886.0000000
9/1/201310842.40510535.4800000umho3678.9400000
10/1/201321309.1477820.3900000umho18918.5000000
11/1/201320644.00611131.3900000umho11754.9700000
12/1/201318059.60513896.6500000umho9433.4500000
1/1/201432224.00317327.5200000umho32224.0000000
2/1/201410010.00418848.1900000umho10010.0000000
3/1/201424732.00421163.1200000umho24732.0000000
4/1/201413828.00419916.2700000umho13828.0000000
5/1/201435547.00422400.1000000umho35547.0000000
6/1/20141503.00419640.6700000umho1503.0000000
7/1/20142369.00414664.8300000umho2369.0000000
8/1/201440930.00419818.1700000umho40930.0000000
9/1/201445861.00423339.6700000umho45861.0000000
10/1/201433410.00426603.3300000umho33410.0000000
11/1/201445932.00428334.1700000umho45932.0000000
12/1/201441845.00435057.8300000umho41845.0000000
1/1/201540007.00341330.8300000umho40007.0000000
2/1/201523148.00338367.1700000umho23148.0000000
3/1/201536720.00336843.6700000umho36720.0000000
5/1/201543182.00336980.4000000umho43182.0000000
10/1/201541727.00242454.5000000umho41727.0000000
11/1/201543393.00242560.0000000umho43393.0000000
1/1/2016884.00428668.0000000umho884.0000000
2/1/201621433.00126859.2500000umho21433.0000000
3/1/201618839.00225255.2000000umho5276.4300000
4/1/201643867.00125683.2000000umho43867.0000000
5/1/201623785.00221761.6000000umho16781.9900000
6/1/201639253.00124676.8300000umho39253.0000000
7/1/20169551.00226121.3300000umho3052.7200000
8/1/2016658.00122658.8300000umho658.0000000
9/1/2016606.00119620.0000000umho606.0000000
10/1/201612014.00114311.1700000umho12014.0000000
11/1/201635639.00116286.8300000umho35639.0000000
12/1/201636192.00115776.6700000umho36192.0000000
4/1/201743991.00138607.3300000umho43991.0000000
5/1/201749866.70143349.9000000umho49866.7000000
6/1/20171004.00131620.5700000umho1004.0000000
7/1/201724004.60129716.5800000umho24004.6000000
8/1/201733748.00130522.8600000umho33748.0000000
9/1/2017501.10125519.2300000umho501.1000000
11/1/201728899.00117631.3400000umho28899.0000000
12/1/201728899.00123210.3400000umho28899.0000000

Temperature, water

Units: deg F Year
2017
Historical
period of record
High
Mean
Low
No. of Samples

Five-year Rolling Average Graph

     
1/1/201372.97272.9700000deg F72.9700000
2/1/201374.30373.6400000deg F74.2900000
3/1/201365.76771.0100000deg F65.7000000
4/1/201379.41573.1100000deg F79.4000000
5/1/201379.90174.4700000deg F79.9000000
6/1/201384.49276.1400000deg F84.4900000
7/1/201383.95777.9700000deg F83.9100000
8/1/201386.09279.9300000deg F86.0900000
9/1/201381.72482.5900000deg F81.7100000
10/1/201375.34581.9200000deg F75.3300000
11/1/201373.57580.8600000deg F73.5200000
12/1/201364.75477.5700000deg F64.7400000
1/1/201468.49274.9900000deg F68.4900000
2/1/201466.70371.7600000deg F66.7000000
3/1/201474.17370.5000000deg F74.1700000
4/1/201471.17369.8100000deg F71.1700000
5/1/201480.33370.9400000deg F80.3300000
6/1/201480.53373.5700000deg F80.5300000
7/1/201482.51375.9000000deg F82.5100000
8/1/201487.75379.4100000deg F87.7500000
9/1/201485.59381.3100000deg F85.5900000
10/1/201478.98382.6200000deg F78.9800000
11/1/201470.90381.0400000deg F70.9000000
12/1/201464.62378.3900000deg F64.6200000
1/1/201567.10275.8200000deg F67.1000000
2/1/201565.14272.0600000deg F65.1400000
3/1/201579.36271.0200000deg F79.3600000
5/1/201584.54272.1500000deg F84.5400000
7/1/201588.03279.2700000deg F88.0300000
8/1/201586.67284.6500000deg F86.6700000
9/1/201585.69286.2300000deg F85.6900000
10/1/201576.39284.2600000deg F76.3900000
11/1/201578.87283.1300000deg F78.8700000
1/1/201662.06277.9400000deg F62.0600000
2/1/201666.15173.8300000deg F66.1500000
3/1/201674.02271.5000000deg F73.9200000
4/1/201673.81170.9800000deg F73.8100000
5/1/201683.80271.9700000deg F83.7900000
6/1/201689.42174.8800000deg F89.4200000
7/1/201683.62278.4700000deg F83.6000000
8/1/201683.84181.4200000deg F83.8400000
9/1/201679.74182.3700000deg F79.7400000
10/1/201679.21183.2700000deg F79.2100000
11/1/201673.74181.6000000deg F73.7400000
12/1/201668.56178.1200000deg F68.5600000
4/1/201772.50171.6000000deg F72.5000000
5/1/201774.84171.9700000deg F74.8400000
6/1/201780.60175.9800000deg F80.6000000
7/1/201784.20178.0400000deg F84.2000000
8/1/201789.06180.2400000deg F89.0600000
9/1/201782.40180.6000000deg F82.4000000
11/1/201751.80177.6100000deg F51.8000000
12/1/201751.80171.8500000deg F51.8000000

Turbidity

Units: NTU Year
2017
Historical
period of record
High 8.7 21.0
Mean 4.16 3.99 2.65892
Low 2.90 1.30
No. of Samples 10 444

Five-year Rolling Average Graph

     
1/1/20133.4033.4000000NTU3.4000000
2/1/20132.6033.0000000NTU2.6000000
3/1/20133.8983.3000000NTU3.5200000
4/1/20136.9584.2100000NTU5.6200000
5/1/20134.3034.2300000NTU4.3000000
6/1/20136.0034.5200000NTU6.0000000
7/1/20136.8485.1000000NTU6.7100000
8/1/20138.0036.0000000NTU8.0000000
9/1/201311.2657.2300000NTU8.9000000
10/1/20135.6067.0000000NTU5.4900000
11/1/20134.9477.1100000NTU4.6100000
12/1/20132.6036.5400000NTU2.6000000
1/1/20142.4045.8000000NTU2.4000000
2/1/20147.8045.7700000NTU7.8000000
3/1/20143.5044.4700000NTU3.5000000
4/1/201415.0046.0400000NTU15.0000000
5/1/20144.8046.0200000NTU4.8000000
6/1/20148.2046.9500000NTU8.2000000
7/1/20146.8047.6800000NTU6.8000000
8/1/20144.9147.2000000NTU4.9100000
9/1/20143.6047.2200000NTU3.6000000
10/1/20146.8045.8500000NTU6.8000000
11/1/20143.2045.5900000NTU3.2000000
12/1/20146.3035.2700000NTU6.3000000
1/1/20154.0034.8000000NTU4.0000000
2/1/20155.3034.8700000NTU5.3000000
3/1/20154.9035.0800000NTU4.9000000
4/1/20152.9024.4300000NTU2.9000000
5/1/20152.8034.3700000NTU2.8000000
6/1/20152.6033.7500000NTU2.6000000
7/1/20152.1023.4300000NTU2.1000000
8/1/20156.7023.6700000NTU6.7000000
9/1/20153.5023.4300000NTU3.5000000
10/1/20152.3013.3300000NTU2.3000000
11/1/20152.7013.3200000NTU2.7000000
1/1/20167.6024.5600000NTU7.6000000
2/1/20164.9014.2000000NTU4.9000000
3/1/20163.8524.2700000NTU3.8500000
4/1/20162.9014.3900000NTU2.9000000
5/1/20164.3524.7200000NTU4.2700000
6/1/20163.2014.4700000NTU3.2000000
7/1/20165.3024.0800000NTU4.9100000
8/1/20169.0014.7700000NTU9.0000000
9/1/20167.7015.4100000NTU7.7000000
10/1/20168.8016.3900000NTU8.8000000
11/1/20166.0016.6700000NTU6.0000000
12/1/20165.0016.9700000NTU5.0000000
1/1/20177.9017.4000000NTU7.9000000
2/1/20172.9016.3800000NTU2.9000000
3/1/20173.0015.6000000NTU3.0000000
4/1/20173.0014.6300000NTU3.0000000
5/1/20172.9014.1200000NTU2.9000000
6/1/20175.0014.1200000NTU5.0000000
7/1/20173.2013.3300000NTU3.2000000
8/1/20174.4013.5800000NTU4.4000000
9/1/20178.7014.5300000NTU8.7000000
10/1/20174.2014.7300000NTU4.2000000
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 2017 45 40 85 47

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.