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Catfish Creek Condition Report for 2017

View 2016 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: 3,984 acres
  • Location: North and central Sarasota County
  • Discharges into: Little Sarasota Bay

The surface water system in the Catfish Creek Basin has undergone significant alteration over the past century. Historical survey does not identify Catfish Creek by name, but aerial photographs and survey from the mid-1900s clearly show the meandering creek extending inland for over a half mile, narrowing, continuing inland for another mile, and ending at a large wetland. The basin was still relatively undeveloped by the 1970s, but Catfish Creek had been excavated in the developed areas and through the basin, connecting pockets of wetlands to drain low-lying areas. The basin is now highly developed, draining from north to south through a ditch trenched through what is now Palmer Ranch, a master-planned community of residential and commercial development. For basin details see: Little Sarasota Bay Water Quality Management Plan (2012)

Creek Location Map

Water Chemistry Ratings - Freshwater Portion of the Creek

Total nitrogen, total phosphorus, chlorophyll a, and dissolved oxygen levels are monitored carefully by water resource managers and used by regulatory authorities to determine whether a creek meets the water quality standards mandated by the Clean Water Act. Shown below are water quality data for each freshwater stream segment. Florida law defines a threshold for the maximum allowable concentration of nitrogen, phosphorus, and chlorophyll a, and the minimum required concentration of dissolved oxygen in these streams. Learn more about these ratings and how they are calculated »

Data for the following WBIDs is averaged when compiling the data below:
  • 1984AA
Pass

Chlorophyll a

Score: Pass
Units: mg/l Year
2017
Historical
period of record
High 0.0528 0.0968
Mean 0.0139 0.0152 0.01441234
Low 0.003 0.0009
No. of Samples 12 297

Five-year Rolling Average Graph

      
1/1/20134.5930.0045900mg/l0.0045900
2/1/20135.8530.0052200mg/l0.0058500
3/1/20138.5830.0063400mg/l0.0085800
4/1/201321.0030.0100100mg/l0.0210000
5/1/201348.2030.0176400mg/l0.0482000
6/1/201338.6030.0211400mg/l0.0386000
7/1/201327.4030.0249400mg/l0.0274000
8/1/201313.3030.0261800mg/l0.0133000
9/1/201320.8030.0282200mg/l0.0208000
10/1/201321.5030.0283000mg/l0.0215000
11/1/201323.2020.0241300mg/l0.0232000
12/1/201320.3030.0210800mg/l0.0203000
1/1/201412.5040.0186000mg/l0.0125000
2/1/201417.8040.0193500mg/l0.0178000
3/1/20147.6940.0171700mg/l0.0076900
4/1/20148.9040.0150700mg/l0.0089000
5/1/201418.7040.0143200mg/l0.0187000
6/1/201421.9040.0145800mg/l0.0219000
7/1/201425.3040.0167200mg/l0.0253000
8/1/201416.0040.0164200mg/l0.0160000
9/1/201433.4040.0207000mg/l0.0334000
10/1/201425.0040.0233800mg/l0.0250000
11/1/201414.7040.0227200mg/l0.0147000
12/1/201414.7040.0215200mg/l0.0147000
1/1/201516.2030.0200000mg/l0.0162000
2/1/20159.7130.0189500mg/l0.0097100
3/1/201515.1030.0159000mg/l0.0151000
4/1/201516.8020.0145400mg/l0.0168000
5/1/201521.1020.0156000mg/l0.0211000
6/1/201511.3030.0150400mg/l0.0113000
7/1/201520.3020.0157200mg/l0.0203000
8/1/20155.9420.0150900mg/l0.0059400
9/1/201515.7020.0151900mg/l0.0157000
10/1/201519.0010.0155600mg/l0.0190000
11/1/20159.2310.0135800mg/l0.0092300
1/1/20162.4820.0104700mg/l0.0024800
2/1/201621.4010.0135600mg/l0.0214000
3/1/201611.4010.0127000mg/l0.0114000
4/1/20168.9010.0106800mg/l0.0089000
5/1/201619.7010.0127800mg/l0.0197000
6/1/20168.3210.0120300mg/l0.0083200
7/1/201611.4010.0135200mg/l0.0114000
8/1/20160.9310.0101100mg/l0.0009300
9/1/20164.8020.0090100mg/l0.0048000
10/1/20163.2810.0080700mg/l0.0032800
11/1/20168.3610.0061800mg/l0.0083600
12/1/201612.2010.0068300mg/l0.0122000
1/1/20176.0210.0059300mg/l0.0060200
2/1/20173.0110.0062800mg/l0.0030100
3/1/20177.3610.0067100mg/l0.0073600
4/1/20176.6210.0072600mg/l0.0066200
5/1/20179.3710.0074300mg/l0.0093700
6/1/201752.8010.0142000mg/l0.0528000
7/1/201721.2010.0167300mg/l0.0212000
8/1/201732.4010.0216300mg/l0.0324000
9/1/201714.7010.0228500mg/l0.0147000
10/1/201716.5010.0245000mg/l0.0165000
11/1/201726.0010.0272700mg/l0.0260000
12/1/201728.6010.0232300mg/l0.0286000
Target
mg/l
Threshold
0.02 mg/l
Pass

Nitrogen, Total

Score: Pass
Units: mg/l Year
2017
Historical
period of record
High 1.649 2.064
Mean 1.284 1.116 0.29695387
Low 1.004 0.433
No. of Samples 12 149

Five-year Rolling Average Graph

      
1/1/2013694.0010.6940000mg/l0.6940000
2/1/2013800.0010.7470000mg/l0.8000000
3/1/2013876.0010.7900000mg/l0.8760000
4/1/2013502.0010.7180000mg/l0.5020000
5/1/20131444.0010.8632000mg/l1.4440000
6/1/20131188.0010.9173300mg/l1.1880000
7/1/20131382.0011.0320000mg/l1.3820000
8/1/20131240.0011.1053300mg/l1.2400000
9/1/20131327.0011.1805000mg/l1.3270000
10/1/20131150.0011.2885000mg/l1.1500000
12/1/20131128.0011.2454000mg/l1.1280000
1/1/2014873.0021.1436000mg/l0.8730000
2/1/20141003.0021.0962000mg/l1.0030000
3/1/20141268.0021.0844000mg/l1.2680000
4/1/20141103.0021.0750000mg/l1.1030000
5/1/2014978.0021.0588300mg/l0.9780000
6/1/20142064.0011.2148300mg/l2.0640000
7/1/20141228.0011.2740000mg/l1.2280000
8/1/20141137.0011.2963300mg/l1.1370000
9/1/20141464.0011.3290000mg/l1.4640000
10/1/20141891.0021.4603300mg/l1.8910000
11/1/20141344.0021.5213300mg/l1.3440000
12/1/20141104.0021.3613300mg/l1.1040000
1/1/2015911.0011.3085000mg/l0.9110000
2/1/20151072.0011.2976700mg/l1.0720000
3/1/20151135.0011.2428300mg/l1.1350000
6/1/20151240.0011.0895000mg/l1.2400000
7/1/20151351.0011.1995000mg/l1.3510000
8/1/20151440.0011.2915000mg/l1.4400000
9/1/2015978.0011.2522500mg/l0.9780000
10/1/20151917.0011.3852000mg/l1.9170000
11/1/20151798.0011.4540000mg/l1.7980000
12/1/20151631.0011.5191700mg/l1.6310000
6/1/20161472.0011.4720000mg/l1.4720000
8/1/20161515.0011.4935000mg/l1.5150000
9/1/20161900.0021.6290000mg/l1.9000000
1/1/20171637.0011.6840000mg/l1.6370000
2/1/20171014.0011.5170000mg/l1.0140000
3/1/20171136.0011.2623300mg/l1.1360000
4/1/20171325.0011.2780000mg/l1.3250000
5/1/20171637.0011.3498000mg/l1.6370000
6/1/20171592.0011.3901700mg/l1.5920000
7/1/20171649.0011.3921700mg/l1.6490000
8/1/20171113.0011.4086700mg/l1.1130000
9/1/20171319.0011.4391700mg/l1.3190000
10/1/20171192.0011.4170000mg/l1.1920000
11/1/20171004.0011.3115000mg/l1.0040000
12/1/20171064.0011.2235000mg/l1.0640000
Pass

Phosphorus, Total

Score: Pass
Units: mg/l Year
2017
Historical
period of record
High 0.429 0.63
Mean 0.127 0.1119 0.09701192
Low 0.011 0.011
No. of Samples 12 295

Five-year Rolling Average Graph

      
1/1/201348.0030.0480000mg/l0.0480000
2/1/201381.0030.0645000mg/l0.0810000
3/1/201382.0030.0703300mg/l0.0820000
4/1/2013111.0030.0805000mg/l0.1110000
5/1/201394.0030.0832000mg/l0.0940000
6/1/2013139.0030.0925000mg/l0.1390000
7/1/201374.0030.0968300mg/l0.0740000
8/1/2013150.0030.1083300mg/l0.1500000
9/1/2013151.0030.1198300mg/l0.1510000
10/1/2013117.0030.1208300mg/l0.1170000
11/1/2013107.0020.1230000mg/l0.1070000
12/1/201393.0030.1153300mg/l0.0930000
1/1/201461.0040.1131700mg/l0.0610000
2/1/201465.0040.0990000mg/l0.0650000
3/1/201472.0040.0858300mg/l0.0720000
4/1/201491.0040.0815000mg/l0.0910000
5/1/201487.0040.0781700mg/l0.0870000
6/1/2014114.0040.0816700mg/l0.1140000
7/1/2014379.0040.1346700mg/l0.3790000
8/1/2014444.0040.1978300mg/l0.4440000
9/1/2014370.0040.2475000mg/l0.3700000
10/1/2014207.0040.2668300mg/l0.2070000
11/1/2014138.0040.2753300mg/l0.1380000
12/1/201446.0040.2640000mg/l0.0460000
1/1/201568.0030.2121700mg/l0.0680000
2/1/201556.0030.1475000mg/l0.0560000
3/1/201594.0030.1015000mg/l0.0940000
4/1/201572.0020.0790000mg/l0.0720000
5/1/2015144.0020.0800000mg/l0.1440000
6/1/2015307.0030.1235000mg/l0.3070000
7/1/2015148.0020.1368300mg/l0.1480000
8/1/2015196.0020.1601700mg/l0.1960000
9/1/2015183.0020.1750000mg/l0.1830000
10/1/201556.0010.1723300mg/l0.0560000
11/1/201598.0010.1646700mg/l0.0980000
1/1/201656.0010.1178000mg/l0.0560000
2/1/201678.0010.0942000mg/l0.0780000
3/1/2016132.0010.0840000mg/l0.1320000
5/1/201694.0010.0900000mg/l0.0940000
6/1/2016252.0010.1224000mg/l0.2520000
7/1/2016466.0010.2044000mg/l0.4660000
8/1/2016200.0010.2288000mg/l0.2000000
9/1/2016214.0020.2452000mg/l0.2139600
10/1/2016140.0010.2276700mg/l0.1400000
11/1/2016137.0010.2348300mg/l0.1370000
12/1/2016212.0010.2281700mg/l0.2120000
1/1/2017124.0010.1711700mg/l0.1240000
2/1/201785.0010.1520000mg/l0.0850000
3/1/2017116.0010.1356700mg/l0.1160000
4/1/2017142.0010.1360000mg/l0.1420000
5/1/2017276.0010.1591700mg/l0.2760000
6/1/2017429.0010.1953300mg/l0.4290000
7/1/2017394.0010.2403300mg/l0.3940000
8/1/2017178.0010.2558300mg/l0.1780000
9/1/2017355.0010.2956700mg/l0.3550000
10/1/2017130.0010.2936700mg/l0.1300000
11/1/201724.0010.2516700mg/l0.0240000
12/1/201711.0010.1820000mg/l0.0110000
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 102.70 172.70
Mean 55.36 82.32 28.00029
Low 22.90 22.90
No. of Samples 12 319

Five-year Rolling Average Graph

      
1/1/2013124.603124.6000000percent (%)124.6000000
2/1/201384.703104.6500000percent (%)84.7000000
3/1/2013120.003109.7700000percent (%)120.0000000
4/1/201375.103101.1000000percent (%)75.1000000
5/1/2013120.803105.0400000percent (%)120.8000000
6/1/201328.50392.2800000percent (%)28.5000000
7/1/201371.90383.5000000percent (%)71.9000000
8/1/201350.70377.8300000percent (%)50.7000000
9/1/201336.50363.9200000percent (%)36.5000000
10/1/201356.00360.7300000percent (%)56.0000000
12/1/201374.60357.9400000percent (%)74.6000000
1/1/201478.90459.3400000percent (%)78.9000000
2/1/2014105.10470.2200000percent (%)105.1000000
3/1/201472.20477.3600000percent (%)72.2000000
4/1/2014123.90490.9400000percent (%)123.9000000
5/1/201488.30490.5000000percent (%)88.3000000
6/1/201477.70491.0200000percent (%)77.7000000
7/1/2014110.80496.3300000percent (%)110.8000000
8/1/201489.90493.8000000percent (%)89.9000000
9/1/201468.20493.1300000percent (%)68.2000000
10/1/201442.00479.4800000percent (%)42.0000000
11/1/201449.60473.0300000percent (%)49.6000000
12/1/201491.10475.2700000percent (%)91.1000000
1/1/201575.80369.4300000percent (%)75.8000000
2/1/201596.00370.4500000percent (%)96.0000000
3/1/201591.40374.3200000percent (%)91.4000000
6/1/201563.60381.7000000percent (%)63.6000000
7/1/201545.60174.1500000percent (%)45.6000000
8/1/201535.30158.9800000percent (%)35.3000000
9/1/201546.70147.8000000percent (%)46.7000000
10/1/201578.10153.8600000percent (%)78.1000000
11/1/201547.40152.7800000percent (%)47.4000000
1/1/201679.65257.4300000percent (%)79.6500000
2/1/201698.00169.9700000percent (%)98.0000000
3/1/201656.80171.9900000percent (%)56.8000000
4/1/201695.00175.3700000percent (%)95.0000000
5/1/201694.00184.6900000percent (%)94.0000000
6/1/2016119.20190.4400000percent (%)119.2000000
7/1/201670.90188.9800000percent (%)70.9000000
8/1/201651.60181.2500000percent (%)51.6000000
9/1/201630.00276.7800000percent (%)30.0000000
10/1/201688.80175.7500000percent (%)88.8000000
11/1/201662.00170.4200000percent (%)62.0000000
12/1/201688.20165.2500000percent (%)88.2000000
1/1/201748.80161.5700000percent (%)48.8000000
2/1/201793.50168.5500000percent (%)93.5000000
3/1/201773.40175.7800000percent (%)73.4000000
4/1/201747.70168.9300000percent (%)47.7000000
5/1/2017102.70175.7200000percent (%)102.7000000
6/1/201759.00170.8500000percent (%)59.0000000
7/1/201724.30166.7700000percent (%)24.3000000
8/1/201758.30160.9000000percent (%)58.3000000
9/1/201722.90152.4800000percent (%)22.9000000
10/1/201742.00151.5300000percent (%)42.0000000
11/1/201775.40146.9800000percent (%)75.4000000
12/1/201783.30151.0300000percent (%)83.3000000
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

      
1/1/20131.2931.2900000mg/l1.2900000
2/1/20131.0731.1800000mg/l1.0700000
3/1/20131.8831.4100000mg/l1.8800000
4/1/20132.5731.7000000mg/l2.5700000
5/1/20132.9731.9600000mg/l2.9700000
6/1/20132.8132.1000000mg/l2.8100000
7/1/20131.4032.1200000mg/l1.4000000
8/1/20131.5332.1900000mg/l1.5300000
9/1/20131.3532.1100000mg/l1.3500000
10/1/20131.4631.9200000mg/l1.4600000
11/1/20130.9721.5900000mg/l0.9700000
12/1/20131.3731.3500000mg/l1.3700000
1/1/20141.1441.3000000mg/l1.1400000
2/1/20142.0841.4000000mg/l2.0800000
3/1/20141.0141.3400000mg/l1.0100000
4/1/20141.5741.3600000mg/l1.5700000
5/1/20142.6741.6400000mg/l2.6700000
6/1/20142.5141.8300000mg/l2.5100000
7/1/20142.7242.0900000mg/l2.7200000
8/1/20143.0942.2600000mg/l3.0900000
9/1/20142.8042.5600000mg/l2.8000000
10/1/20141.6442.5700000mg/l1.6400000
11/1/20141.2142.3300000mg/l1.2100000
12/1/20141.2942.1300000mg/l1.2900000
1/1/20151.2131.8700000mg/l1.2100000
2/1/20151.2431.5700000mg/l1.2400000
3/1/20152.9331.5900000mg/l2.9300000
4/1/20151.7521.6100000mg/l1.7500000
5/1/20151.4721.6500000mg/l1.4700000
6/1/20150.9731.6000000mg/l0.9700000
7/1/20151.3621.6200000mg/l1.3600000
8/1/20150.5521.5100000mg/l0.5500000
9/1/20151.0921.2000000mg/l1.0900000
10/1/20151.5911.1700000mg/l1.5900000
11/1/20151.1611.1200000mg/l1.1600000
1/1/20160.6921.0200000mg/l0.6900000
2/1/20162.2411.3500000mg/l2.2400000
3/1/20161.6711.4700000mg/l1.6700000
4/1/20161.2411.4000000mg/l1.2400000
5/1/20161.2311.4100000mg/l1.2300000
6/1/20161.1511.3700000mg/l1.1500000
7/1/20161.2711.4700000mg/l1.2700000
8/1/20161.0011.2600000mg/l1.0000000
9/1/20161.0011.1500000mg/l1.0000000
10/1/20161.4211.1800000mg/l1.4200000
11/1/20161.0011.1400000mg/l1.0000000
12/1/20161.3411.1700000mg/l1.3400000
1/1/20171.7211.2500000mg/l1.7200000
2/1/20172.0311.4200000mg/l2.0300000
3/1/20171.0911.4300000mg/l1.0900000
4/1/20171.0011.3600000mg/l1.0000000
5/1/20171.0011.3600000mg/l1.0000000
6/1/20172.7411.6000000mg/l2.7400000
7/1/20171.6411.5800000mg/l1.6400000
8/1/20171.8511.5500000mg/l1.8500000
9/1/20171.5511.6300000mg/l1.5500000
10/1/20171.6111.7300000mg/l1.6100000
11/1/20172.3011.9500000mg/l2.3000000
12/1/20172.2911.8700000mg/l2.2900000

Color

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

Five-year Rolling Average Graph

      
2/1/201670.00170.0000000PCU70.0000000
3/1/201660.00165.0000000PCU60.0000000
4/1/201655.00161.6700000PCU55.0000000
5/1/201640.00156.2500000PCU40.0000000
6/1/201660.00157.0000000PCU60.0000000
7/1/201660.00157.5000000PCU60.0000000
8/1/2016130.00167.5000000PCU130.0000000
9/1/2016100.00174.1700000PCU100.0000000
10/1/201660.00175.0000000PCU60.0000000
11/1/201660.00178.3300000PCU60.0000000
12/1/201640.00175.0000000PCU40.0000000
1/1/201750.00173.3300000PCU50.0000000
2/1/201760.00161.6700000PCU60.0000000
3/1/201750.00153.3300000PCU50.0000000
4/1/201750.00151.6700000PCU50.0000000
5/1/201760.00151.6700000PCU60.0000000
6/1/2017100.00161.6700000PCU100.0000000
7/1/2017100.00170.0000000PCU100.0000000
8/1/201790.00175.0000000PCU90.0000000
9/1/2017100.00183.3300000PCU100.0000000
10/1/201790.00190.0000000PCU90.0000000
11/1/201760.00190.0000000PCU60.0000000
12/1/201760.00183.3300000PCU60.0000000

Escherichia coli

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

Five-year Rolling Average Graph

      
4/1/201510.00210.0000000cfu/100ml10.0000000
5/1/201520.00215.0000000cfu/100ml20.0000000
6/1/201510.00213.3300000cfu/100ml10.0000000
7/1/201575.00228.7500000cfu/100ml75.0000000
8/1/201541.00231.2000000cfu/100ml41.0000000
9/1/201510.00227.6700000cfu/100ml10.0000000
10/1/201520.00129.3300000cfu/100ml20.0000000
11/1/2015109.00144.1700000cfu/100ml109.0000000
1/1/201652.00246.4000000cfu/100ml52.0000000
2/1/201685.00155.2000000cfu/100ml85.0000000
3/1/201641.00161.4000000cfu/100ml41.0000000
4/1/201610.00159.4000000cfu/100ml10.0000000
5/1/201641.00145.8000000cfu/100ml41.0000000
6/1/201610.00139.8300000cfu/100ml10.0000000
7/1/201610.00132.8300000cfu/100ml10.0000000
8/1/201641.00125.5000000cfu/100ml41.0000000
9/1/201620.00122.0000000cfu/100ml20.0000000
10/1/201610.00122.0000000cfu/100ml10.0000000
11/1/201610.00116.8300000cfu/100ml10.0000000
12/1/201630.00120.1700000cfu/100ml30.0000000
1/1/201775.00131.0000000cfu/100ml75.0000000
2/1/201752.00132.8300000cfu/100ml52.0000000
3/1/201740.00136.1700000cfu/100ml40.0000000
4/1/201710.00136.1700000cfu/100ml10.0000000
5/1/201710.00136.1700000cfu/100ml10.0000000
6/1/2017238.00170.8300000cfu/100ml238.0000000
7/1/2017175.00187.5000000cfu/100ml175.0000000
8/1/201741.00185.6700000cfu/100ml41.0000000
9/1/201752.00187.6700000cfu/100ml52.0000000
10/1/201710.00187.6700000cfu/100ml10.0000000
11/1/201710.00187.6700000cfu/100ml10.0000000
12/1/201730.00153.0000000cfu/100ml30.0000000
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

      
1/1/201320.00320.0000000ug/l20.0000000
2/1/20138.00314.0000000ug/l8.0000000
3/1/20138.00312.0000000ug/l8.0000000
4/1/201316.00313.0000000ug/l16.0000000
5/1/201316.00313.6000000ug/l16.0000000
6/1/201358.00321.0000000ug/l58.0000000
7/1/201333.00323.1700000ug/l33.0000000
8/1/201328.00326.5000000ug/l28.0000000
9/1/201363.00335.6700000ug/l63.0000000
10/1/20138.00334.3300000ug/l8.0000000
11/1/201348.00239.6700000ug/l48.0000000
12/1/20138.00331.3300000ug/l8.0000000
1/1/20146.40526.9000000ug/l2.0100000
2/1/20146.40523.3000000ug/l2.0100000
3/1/201435.21518.6700000ug/l11.0500000
4/1/20146.75418.4600000ug/l1.6000000
5/1/20146.00411.4600000ug/l1.4200000
6/1/201412.00512.1300000ug/l3.7700000
7/1/20146.40512.1300000ug/l2.0100000
8/1/20146.40512.1300000ug/l2.0100000
9/1/20146.4057.3300000ug/l2.0100000
10/1/201496.02522.2000000ug/l30.1400000
11/1/201495.22537.0700000ug/l29.8900000
12/1/20146.40536.1400000ug/l2.0100000
1/1/20158.00336.4100000ug/l8.0000000
2/1/20158.00336.6700000ug/l8.0000000
3/1/20158.00336.9400000ug/l8.0000000
4/1/20158.00222.2700000ug/l8.0000000
5/1/20158.0027.7300000ug/l8.0000000
6/1/201567.00317.8300000ug/l67.0000000
7/1/201543.00223.6700000ug/l43.0000000
8/1/201542.00229.3300000ug/l42.0000000
9/1/201553.00236.8300000ug/l53.0000000
10/1/201526.00139.8300000ug/l26.0000000
11/1/2015105.00156.0000000ug/l105.0000000
1/1/201636.00152.4000000ug/l36.0000000
8/1/2016227.001227.0000000ug/l227.0000000
9/1/2016117.001172.0000000ug/l117.0000000
6/1/2017150.001150.0000000ug/l150.0000000
7/1/2017221.001185.5000000ug/l221.0000000
9/1/2017183.001184.6700000ug/l183.0000000

Nitrogen, Kjeldahl

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

Five-year Rolling Average Graph

      
1/1/2013684.003684.0000000ug/l684.0000000
2/1/2013796.003740.0000000ug/l796.0000000
3/1/2013872.003784.0000000ug/l872.0000000
4/1/2013498.003712.5000000ug/l498.0000000
5/1/20131440.003858.0000000ug/l1440.0000000
6/1/20131150.003906.6700000ug/l1150.0000000
7/1/20131300.0031009.3300000ug/l1300.0000000
8/1/20131160.0031070.0000000ug/l1160.0000000
9/1/20131190.0031123.0000000ug/l1190.0000000
10/1/20131130.0031228.3300000ug/l1130.0000000
11/1/20131200.0021188.3300000ug/l1200.0000000
12/1/20131110.0031181.6700000ug/l1110.0000000
1/1/2014870.0041110.0000000ug/l870.0000000
2/1/20141000.0041083.3300000ug/l1000.0000000
3/1/20141240.0041091.6700000ug/l1240.0000000
4/1/20141100.0041086.6700000ug/l1100.0000000
5/1/2014975.0041049.1700000ug/l975.0000000
6/1/20142060.0041207.5000000ug/l2060.0000000
7/1/20141220.0041265.8300000ug/l1220.0000000
8/1/20141130.0041287.5000000ug/l1130.0000000
9/1/20141460.0041324.1700000ug/l1460.0000000
10/1/20141730.0041429.1700000ug/l1730.0000000
11/1/20141190.0041465.0000000ug/l1190.0000000
12/1/2014907.0041272.8300000ug/l907.0000000
1/1/2015909.0031221.0000000ug/l909.0000000
2/1/20151070.0031211.0000000ug/l1070.0000000
3/1/20151130.0031156.0000000ug/l1130.0000000
4/1/20151010.0021036.0000000ug/l1010.0000000
5/1/20151070.0021016.0000000ug/l1070.0000000
6/1/20151230.0031069.8300000ug/l1230.0000000
7/1/20151350.0021143.3300000ug/l1350.0000000
8/1/2015995.0021130.8300000ug/l995.0000000
9/1/20151020.0021112.5000000ug/l1020.0000000
10/1/20151520.0011197.5000000ug/l1520.0000000
11/1/20151070.0011197.5000000ug/l1070.0000000
1/1/2016931.0021107.2000000ug/l931.0000000
2/1/20161120.0011132.2000000ug/l1120.0000000
3/1/20161120.0011152.2000000ug/l1120.0000000
4/1/2016838.0011015.8000000ug/l838.0000000
5/1/20161410.0011083.8000000ug/l1410.0000000
6/1/20161460.0011146.5000000ug/l1460.0000000
7/1/20161450.0011233.0000000ug/l1450.0000000
8/1/20161400.0011279.6700000ug/l1400.0000000
9/1/20161790.0011391.3300000ug/l1790.0000000
10/1/20161170.0011446.6700000ug/l1170.0000000
11/1/20161200.0011411.6700000ug/l1200.0000000
12/1/20161010.0011336.6700000ug/l1010.0000000
1/1/20171630.0011366.6700000ug/l1630.0000000
2/1/20171010.0011301.6700000ug/l1010.0000000
3/1/20171130.0011191.6700000ug/l1130.0000000
4/1/20171320.0011216.6700000ug/l1320.0000000
5/1/20171620.0011286.6700000ug/l1620.0000000
6/1/20171520.0011371.6700000ug/l1520.0000000
7/1/20171560.0011360.0000000ug/l1560.0000000
8/1/20171090.0011373.3300000ug/l1090.0000000
9/1/20171210.0011386.6700000ug/l1210.0000000
10/1/20171170.0011361.6700000ug/l1170.0000000
11/1/20171000.0011258.3300000ug/l1000.0000000
12/1/20171040.0011178.3300000ug/l1040.0000000

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

      
1/1/201310.00310.0000000ug/l10.0000000
2/1/20134.0037.0000000ug/l4.0000000
3/1/20134.0036.0000000ug/l4.0000000
4/1/20134.0035.5000000ug/l4.0000000
5/1/20134.0035.2000000ug/l4.0000000
6/1/201338.00310.6700000ug/l38.0000000
7/1/201382.00322.6700000ug/l82.0000000
8/1/201380.00335.3300000ug/l80.0000000
9/1/2013137.00357.5000000ug/l137.0000000
10/1/201320.00360.1700000ug/l20.0000000
11/1/201361.00269.6700000ug/l61.0000000
12/1/201318.00366.3300000ug/l18.0000000
1/1/20144.00353.3300000ug/l4.0000000
2/1/20144.00440.6700000ug/l4.0000000
3/1/201428.00422.5000000ug/l28.0000000
4/1/20144.00319.8300000ug/l4.0000000
5/1/20144.00310.3300000ug/l4.0000000
6/1/20144.0038.0000000ug/l4.0000000
7/1/20148.0038.6700000ug/l8.0000000
8/1/20147.0039.1700000ug/l7.0000000
9/1/20144.0045.1700000ug/l4.0000000
10/1/2014161.00431.3300000ug/l161.0000000
11/1/2014154.00456.3300000ug/l154.0000000
12/1/2014197.00488.5000000ug/l197.0000000
1/1/20154.00387.8300000ug/l4.0000000
2/1/20154.00387.3300000ug/l4.0000000
3/1/20155.00387.5000000ug/l5.0000000
4/1/20154.00261.3300000ug/l4.0000000
5/1/20154.00236.3300000ug/l4.0000000
6/1/201510.0035.1700000ug/l10.0000000
7/1/201590.00219.5000000ug/l90.0000000
8/1/201574.00231.1700000ug/l74.0000000
9/1/2015129.00251.8300000ug/l129.0000000
10/1/20154.00151.8300000ug/l4.0000000
11/1/201575.00163.6700000ug/l75.0000000
1/1/201651.00166.6000000ug/l51.0000000
6/1/201612.00131.5000000ug/l12.0000000
8/1/2016115.00163.5000000ug/l115.0000000
9/1/2016112.00179.6700000ug/l112.0000000
8/1/201723.00123.0000000ug/l23.0000000
9/1/2017109.00166.0000000ug/l109.0000000
12/1/201724.00152.0000000ug/l24.0000000

pH

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

Five-year Rolling Average Graph

      
1/1/20138.0238.0200000None8.0200000
2/1/20138.0238.0200000None8.0200000
3/1/20137.9337.9900000None7.9300000
4/1/20137.7237.9200000None7.7200000
5/1/20138.0637.9500000None8.0600000
6/1/20137.2037.8300000None7.2000000
7/1/20137.5737.7500000None7.5700000
8/1/20137.3737.6400000None7.3700000
9/1/20137.2937.5400000None7.2900000
10/1/20137.4537.4900000None7.4500000
12/1/20137.4437.4200000None7.4400000
1/1/20147.7137.4500000None7.7100000
2/1/20147.6847.5100000None7.6800000
3/1/20147.6137.5800000None7.6100000
4/1/20147.7737.6400000None7.7700000
5/1/20147.8737.6800000None7.8700000
6/1/20147.6537.7200000None7.6500000
7/1/20147.8237.7300000None7.8200000
8/1/20147.6637.7300000None7.6600000
9/1/20147.4847.7100000None7.4800000
10/1/20147.1737.6100000None7.1700000
11/1/20147.3737.5300000None7.3700000
12/1/20147.8247.5500000None7.8200000
1/1/20157.7037.5300000None7.7000000
2/1/20157.6137.5300000None7.6100000
3/1/20157.6437.5500000None7.6400000
6/1/20157.3337.5700000None7.3300000
7/1/20157.2617.4600000None7.2600000
8/1/20157.1517.3500000None7.1500000
9/1/20157.1917.2300000None7.1900000
10/1/20157.6527.3200000None7.6500000
11/1/20157.4827.3400000None7.4700000
1/1/20167.5947.4100000None7.5900000
2/1/20167.4527.4700000None7.4400000
3/1/20167.5427.5400000None7.5400000
4/1/20167.6527.5400000None7.6500000
5/1/20167.4227.5300000None7.4100000
6/1/20167.4427.5200000None7.4300000
7/1/20167.4627.4900000None7.4600000
8/1/20167.0327.4200000None7.0300000
9/1/20167.1927.3700000None7.1900000
10/1/20167.5227.3400000None7.5100000
11/1/20167.6927.3900000None7.6900000
12/1/20167.7027.4300000None7.7000000
1/1/20177.5527.4500000None7.5400000
2/1/20177.4527.5200000None7.4400000
3/1/20177.6027.5900000None7.5900000
4/1/20177.3827.5600000None7.3700000
5/1/20177.7227.5700000None7.7200000
6/1/20177.1927.4800000None7.1800000
7/1/20177.3227.4400000None7.3200000
8/1/20177.4527.4400000None7.4500000
9/1/20177.1627.3700000None7.1600000
10/1/20177.6617.4200000None7.6600000
11/1/20177.8327.4400000None7.8300000
12/1/20177.7827.5300000None7.7800000

Salinity

Units: PSS Year
2017
Historical
period of record
High 0.97 0.97
Mean 0.52 0.49 0.1337
Low 0.31 0.22
No. of Samples 12 262

Five-year Rolling Average Graph

      
1/1/20130.6130.6100000PSS0.6100000
2/1/20130.6930.6500000PSS0.6900000
3/1/20130.6630.6500000PSS0.6600000
4/1/20130.5630.6300000PSS0.5600000
5/1/20130.6330.6300000PSS0.6300000
6/1/20130.3630.5900000PSS0.3600000
7/1/20130.3830.5500000PSS0.3800000
8/1/20130.2830.4800000PSS0.2800000
9/1/20130.3330.4200000PSS0.3300000
10/1/20130.5330.4200000PSS0.5300000
12/1/20130.5030.4000000PSS0.5000000
1/1/20140.5740.4400000PSS0.5700000
2/1/20140.5640.5000000PSS0.5600000
3/1/20140.5340.5400000PSS0.5300000
4/1/20140.5440.5400000PSS0.5400000
5/1/20140.4740.5300000PSS0.4700000
6/1/20140.4240.5200000PSS0.4200000
7/1/20140.2740.4700000PSS0.2700000
8/1/20140.3940.4400000PSS0.3900000
9/1/20140.5240.4400000PSS0.5200000
10/1/20140.3340.4000000PSS0.3300000
11/1/20140.4440.4000000PSS0.4400000
12/1/20140.5540.4200000PSS0.5500000
1/1/20150.6030.4700000PSS0.6000000
2/1/20150.4930.4900000PSS0.4900000
3/1/20150.6230.5100000PSS0.6200000
6/1/20150.4930.5500000PSS0.4900000
7/1/20150.3510.4900000PSS0.3500000
8/1/20150.3210.4500000PSS0.3200000
9/1/20150.4410.4000000PSS0.4400000
10/1/20150.4810.4200000PSS0.4800000
11/1/20150.5610.4400000PSS0.5600000
1/1/20160.4520.4500000PSS0.4500000
2/1/20160.4710.4800000PSS0.4700000
3/1/20160.4310.4800000PSS0.4300000
4/1/20160.5910.5000000PSS0.5900000
5/1/20160.4710.4800000PSS0.4700000
6/1/20160.4710.4800000PSS0.4700000
7/1/20160.4210.4800000PSS0.4200000
9/1/20160.3220.4500000PSS0.3200000
10/1/20160.4710.4300000PSS0.4700000
11/1/20160.5610.4500000PSS0.5600000
12/1/20160.6210.4800000PSS0.6200000
1/1/20170.5810.5100000PSS0.5800000
2/1/20170.5910.5200000PSS0.5900000
3/1/20170.5010.5500000PSS0.5000000
4/1/20170.6610.5900000PSS0.6600000
5/1/20170.6710.6000000PSS0.6700000
6/1/20170.4310.5700000PSS0.4300000
7/1/20170.3710.5400000PSS0.3700000
8/1/20170.4010.5100000PSS0.4000000
9/1/20170.3110.4700000PSS0.3100000
10/1/20170.4810.4400000PSS0.4800000
11/1/20170.9710.4900000PSS0.9700000
12/1/20170.5410.5100000PSS0.5400000

Specific conductance

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

Five-year Rolling Average Graph

      
1/1/20131226.0031226.0000000umho1226.0000000
2/1/20131379.0031302.5000000umho1379.0000000
3/1/20131310.0031305.0000000umho1310.0000000
4/1/20131138.0031263.2500000umho1138.0000000
5/1/20131274.0031265.4000000umho1274.0000000
6/1/2013755.0031180.3300000umho755.0000000
7/1/2013792.0031108.0000000umho792.0000000
8/1/2013588.003976.1700000umho588.0000000
9/1/2013694.003873.5000000umho694.0000000
10/1/20131069.003862.0000000umho1069.0000000
12/1/20131004.003829.4000000umho1004.0000000
1/1/20141149.004900.8000000umho1149.0000000
2/1/20141128.0041008.8000000umho1128.0000000
3/1/20141071.0041084.2000000umho1071.0000000
4/1/20141105.0041091.4000000umho1105.0000000
5/1/2014961.0041069.6700000umho961.0000000
6/1/2014876.0041048.3300000umho876.0000000
7/1/2014573.004952.3300000umho573.0000000
8/1/2014802.004898.0000000umho802.0000000
9/1/20141051.004894.6700000umho1051.0000000
10/1/2014676.004823.1700000umho676.0000000
11/1/2014893.004811.8300000umho893.0000000
12/1/20141098.004848.8300000umho1098.0000000
1/1/20151204.003954.0000000umho1204.0000000
2/1/2015991.003985.5000000umho991.0000000
3/1/20151256.0031019.6700000umho1256.0000000
6/1/20151008.0031114.7500000umho1008.0000000
10/1/2015983.001995.5000000umho983.0000000
11/1/20151123.0011038.0000000umho1123.0000000
1/1/2016916.0021007.3300000umho916.0000000
2/1/2016948.001992.5000000umho948.0000000
3/1/2016884.001970.8000000umho884.0000000
4/1/20161192.0011012.6000000umho1192.0000000
5/1/2016968.001981.6000000umho968.0000000
6/1/2016964.001978.6700000umho964.0000000
7/1/2016868.001970.6700000umho868.0000000
8/1/2016603.001913.1700000umho603.0000000
9/1/2016665.001876.6700000umho665.0000000
10/1/2016960.001838.0000000umho960.0000000
11/1/20161130.001865.0000000umho1130.0000000
12/1/20161250.001912.6700000umho1250.0000000
1/1/20171174.001963.6700000umho1174.0000000
2/1/20171187.0011061.0000000umho1187.0000000
3/1/20171011.0011118.6700000umho1011.0000000
4/1/20171314.0011177.6700000umho1314.0000000
5/1/20171335.0011211.8300000umho1335.0000000
6/1/2017889.0011151.6700000umho889.0000000
7/1/2017758.0011082.3300000umho758.0000000
8/1/2017806.0011018.8300000umho806.0000000
9/1/2017627.001954.8300000umho627.0000000
11/1/2017941.001804.2000000umho941.0000000
12/1/2017941.001814.6000000umho941.0000000

Temperature, water

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

Five-year Rolling Average Graph

      
1/1/201370.84270.8400000deg F70.8400000
2/1/201371.74271.2900000deg F71.7400000
3/1/201365.77269.4500000deg F65.7700000
4/1/201380.71272.2700000deg F80.7100000
5/1/201382.78274.3700000deg F82.7800000
6/1/201384.72276.0900000deg F84.7200000
7/1/201385.41278.5200000deg F85.4100000
8/1/201383.16280.4300000deg F83.1600000
9/1/201384.24283.5000000deg F84.2400000
10/1/201376.86282.8600000deg F76.8600000
12/1/201370.36280.0100000deg F70.3600000
1/1/201459.16374.7600000deg F59.1600000
2/1/201474.61373.0500000deg F74.6100000
3/1/201471.49370.5000000deg F71.4900000
4/1/201483.55371.8300000deg F83.5500000
5/1/201484.20373.9000000deg F84.2000000
6/1/201487.64376.7800000deg F87.6400000
7/1/201487.24381.4600000deg F87.2400000
8/1/201475.63381.6300000deg F75.6300000
9/1/201483.70383.6600000deg F83.7000000
10/1/201480.89383.2200000deg F80.8900000
11/1/201463.54379.7700000deg F63.5400000
12/1/201459.97375.1600000deg F59.9700000
1/1/201563.79271.2500000deg F63.7900000
2/1/201565.53269.5700000deg F65.5300000
3/1/201578.22268.6600000deg F78.2200000
6/1/201585.93273.3700000deg F85.9300000
7/1/201582.29177.9900000deg F82.2900000
8/1/201587.19183.4100000deg F87.1900000
9/1/201584.25184.9200000deg F84.2500000
10/1/201578.30183.5900000deg F78.3000000
11/1/201573.76181.9500000deg F73.7600000
1/1/201667.30178.1600000deg F67.3000000
2/1/201668.13174.3500000deg F68.1300000
3/1/201671.80171.8600000deg F71.8000000
4/1/201679.74172.1500000deg F79.7400000
5/1/201679.03173.2000000deg F79.0300000
6/1/201682.94174.8200000deg F82.9400000
7/1/201685.62177.8800000deg F85.6200000
8/1/201686.41180.9200000deg F86.4100000
9/1/201682.99182.7900000deg F82.9900000
10/1/201672.61181.6000000deg F72.6100000
11/1/201665.17179.2900000deg F65.1700000
12/1/201672.70177.5800000deg F72.7000000
1/1/201770.41175.0500000deg F70.4100000
2/1/201770.16172.3400000deg F70.1600000
3/1/201767.21169.7100000deg F67.2100000
4/1/201774.30169.9900000deg F74.3000000
5/1/201782.63172.9000000deg F82.6300000
6/1/201781.84174.4300000deg F81.8400000
7/1/201785.64176.9600000deg F85.6400000
8/1/201786.54179.6900000deg F86.5400000
9/1/201783.30182.3800000deg F83.3000000

Turbidity

Units: NTU Year
2017
Historical
period of record
High 6.00 9.40
Mean 3.04 4.19 1.61554
Low 1.20 1.20
No. of Samples 10 295

Five-year Rolling Average Graph

      
1/1/20132.3032.3000000NTU2.3000000
2/1/20133.8033.0500000NTU3.8000000
3/1/20133.8033.3000000NTU3.8000000
4/1/20134.0033.4800000NTU4.0000000
5/1/20138.0034.3800000NTU8.0000000
6/1/20135.9034.6300000NTU5.9000000
7/1/20136.5035.3300000NTU6.5000000
8/1/20135.9035.6800000NTU5.9000000
9/1/20134.7035.8300000NTU4.7000000
10/1/20136.3036.2200000NTU6.3000000
11/1/20134.6025.6500000NTU4.6000000
12/1/20134.6035.4300000NTU4.6000000
1/1/20142.9044.8300000NTU2.9000000
2/1/20146.7044.9700000NTU6.7000000
3/1/20144.6044.9500000NTU4.6000000
4/1/20143.0044.4000000NTU3.0000000
5/1/20143.5044.2200000NTU3.5000000
6/1/20144.4044.1800000NTU4.4000000
7/1/20145.6044.6300000NTU5.6000000
8/1/20145.8044.4800000NTU5.8000000
9/1/20146.2044.7500000NTU6.2000000
10/1/20145.0045.0800000NTU5.0000000
11/1/20144.6045.2700000NTU4.6000000
12/1/20142.3044.9200000NTU2.3000000
1/1/20152.6034.4200000NTU2.6000000
2/1/20153.8034.0800000NTU3.8000000
3/1/20154.6033.8200000NTU4.6000000
4/1/20153.3023.5300000NTU3.3000000
5/1/20153.3023.3200000NTU3.3000000
6/1/20153.0033.4300000NTU3.0000000
7/1/20152.6023.4300000NTU2.6000000
8/1/20151.7023.0800000NTU1.7000000
9/1/20152.1022.6700000NTU2.1000000
10/1/20152.3012.5000000NTU2.3000000
11/1/20153.6012.5500000NTU3.6000000
1/1/20163.6022.6600000NTU3.6000000
2/1/20163.6013.0400000NTU3.6000000
3/1/20163.1013.2400000NTU3.1000000
4/1/20163.3013.4400000NTU3.3000000
5/1/20163.4013.4000000NTU3.4000000
6/1/20162.9013.3200000NTU2.9000000
7/1/20162.4013.1200000NTU2.4000000
8/1/20163.6013.1200000NTU3.6000000
9/1/20162.2022.9700000NTU2.2000000
10/1/20163.4012.9800000NTU3.4000000
11/1/20162.8712.9000000NTU2.8700000
12/1/20162.1012.7600000NTU2.1000000
1/1/20176.0013.3600000NTU6.0000000
2/1/20172.2013.1300000NTU2.2000000
3/1/20172.6013.2000000NTU2.6000000
4/1/20172.4013.0300000NTU2.4000000
5/1/20171.2012.7500000NTU1.2000000
6/1/20173.6013.0000000NTU3.6000000
7/1/20172.8012.4700000NTU2.8000000
8/1/20174.1012.7800000NTU4.1000000
9/1/20173.9013.0000000NTU3.9000000
10/1/20174.3013.3200000NTU4.3000000
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:
  • 1984
Pass

Chlorophyll a

Score: Pass
Units: mg/l Year
2017
Historical
period of record
High 0.0 0.1
Mean 0.0083 0.005 0.01931469
Low 0.0022 0.0001
No. of Samples 11 305

Five-year Rolling Average Graph

     
1/1/20130.4830.0004800mg/l0.0004800
2/1/20130.6230.0005500mg/l0.0006200
3/1/20130.3230.0004700mg/l0.0003200
4/1/20130.8630.0005700mg/l0.0008600
5/1/20131.1530.0006900mg/l0.0011500
6/1/201319.9030.0038900mg/l0.0199000
7/1/201311.1030.0056600mg/l0.0111000
8/1/201311.7030.0075100mg/l0.0117000
9/1/201312.1030.0094700mg/l0.0121000
10/1/201318.0030.0123300mg/l0.0180000
11/1/20134.0520.0128100mg/l0.0040500
12/1/20132.4730.0099000mg/l0.0024700
1/1/20141.1540.0082500mg/l0.0011500
2/1/20141.8140.0066000mg/l0.0018100
3/1/20147.0740.0057600mg/l0.0070700
4/1/20140.8330.0029000mg/l0.0008300
5/1/20141.0440.0024000mg/l0.0010400
6/1/20145.2040.0028500mg/l0.0052000
7/1/20143.9640.0033200mg/l0.0039600
8/1/20143.4940.0036000mg/l0.0034900
9/1/201410.5040.0041700mg/l0.0105000
10/1/20149.0340.0055400mg/l0.0090300
11/1/201411.4040.0072600mg/l0.0114000
12/1/20141.9540.0067200mg/l0.0019500
1/1/20151.1330.0062500mg/l0.0011300
2/1/20153.4930.0062500mg/l0.0034900
3/1/20159.7730.0061300mg/l0.0097700
4/1/20153.1420.0051500mg/l0.0031400
5/1/20159.3520.0048100mg/l0.0093500
6/1/20152.3930.0048800mg/l0.0023900
7/1/201515.6020.0072900mg/l0.0156000
8/1/20154.3320.0074300mg/l0.0043300
9/1/20158.1320.0071600mg/l0.0081300
10/1/20154.0410.0073100mg/l0.0040400
11/1/20158.0410.0070900mg/l0.0080400
1/1/20161.8520.0052800mg/l0.0018500
2/1/20163.2110.0050500mg/l0.0032100
3/1/20165.0310.0044300mg/l0.0050300
4/1/20167.6410.0051500mg/l0.0076400
5/1/20165.6210.0046700mg/l0.0056200
6/1/20165.5910.0048200mg/l0.0055900
7/1/20165.7310.0054700mg/l0.0057300
8/1/20166.7310.0060600mg/l0.0067300
9/1/20161.4910.0054700mg/l0.0014900
10/1/20167.0010.0053600mg/l0.0070000
11/1/20161.7710.0047200mg/l0.0017700
12/1/20162.5010.0042000mg/l0.0025000
1/1/201711.2010.0051200mg/l0.0112000
2/1/20172.1510.0043500mg/l0.0021500
3/1/201710.5010.0058500mg/l0.0105000
4/1/20174.5510.0054500mg/l0.0045500
6/1/201743.0010.0142800mg/l0.0430000
7/1/20179.4810.0139400mg/l0.0094800
8/1/20178.4310.0151900mg/l0.0084300
9/1/20176.5610.0144000mg/l0.0065600
10/1/20178.2610.0151500mg/l0.0082600
11/1/20177.4510.0138600mg/l0.0074500
12/1/20177.5810.0079600mg/l0.0075800
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 3.5 5.1
Mean 1.278 1.1289 0.61531387
Low 0.984 0.131
No. of Samples 12 188

Five-year Rolling Average Graph

     
1/1/2013769.0010.7690000mg/l0.7690000
2/1/2013590.0010.6795000mg/l0.5900000
3/1/2013707.0010.6886700mg/l0.7070000
4/1/2013302.0010.5920000mg/l0.3020000
5/1/2013744.0010.6224000mg/l0.7440000
6/1/2013970.0010.6803300mg/l0.9700000
7/1/20131406.0010.7865000mg/l1.4060000
8/1/20131222.0010.8918300mg/l1.2220000
9/1/20131589.0011.0388300mg/l1.5890000
10/1/20131153.0011.1806700mg/l1.1530000
12/1/2013926.0011.2592000mg/l0.9260000
1/1/2014799.0021.1378000mg/l0.7990000
2/1/2014860.0021.0654000mg/l0.8600000
3/1/20141385.0021.0246000mg/l1.3850000
4/1/2014918.0020.9776000mg/l0.9180000
5/1/2014744.0020.9386700mg/l0.7440000
6/1/2014882.0010.9313300mg/l0.8820000
7/1/2014896.0010.9475000mg/l0.8960000
8/1/20141111.0010.9893300mg/l1.1110000
9/1/20141330.0010.9801700mg/l1.3300000
10/1/20141792.0021.1258300mg/l1.7920000
11/1/20141551.0021.2603300mg/l1.5510000
12/1/2014825.0021.2508300mg/l0.8250000
1/1/2015869.0011.2463300mg/l0.8690000
2/1/2015801.0011.1946700mg/l0.8010000
3/1/20153484.0011.5536700mg/l3.4840000
6/1/2015924.0011.5195000mg/l0.9240000
1/1/2016953.0010.9530000mg/l0.9530000
3/1/20161020.0010.9865000mg/l1.0200000
6/1/20161333.0011.1020000mg/l1.3330000
9/1/20161740.0011.5365000mg/l1.7400000
10/1/20161303.0011.4586700mg/l1.3030000
11/1/20161210.0011.3965000mg/l1.2100000
1/1/20171347.0011.4000000mg/l1.3470000
2/1/2017986.0011.3172000mg/l0.9860000
3/1/20171026.0011.1744000mg/l1.0260000
4/1/20171014.0011.1166000mg/l1.0140000
5/1/20173468.0011.5682000mg/l3.4680000
6/1/20171522.0011.5605000mg/l1.5220000
7/1/20171547.0011.5938300mg/l1.5470000
8/1/2017992.0011.5948300mg/l0.9920000
9/1/20171315.0011.6430000mg/l1.3150000
10/1/20171297.0011.6901700mg/l1.2970000
11/1/20171011.0011.2806700mg/l1.0110000
12/1/2017984.0011.1910000mg/l0.9840000

Phosphorus, Total

We were unable to determine a trend for the data available.
Units: mg/l Year
2017
Historical
period of record
High 0.8 4.6
Mean 0.1586 0.1615 0.45384452
Low 0.02 0.02
No. of Samples 12 346

Five-year Rolling Average Graph

     
1/1/201377.0030.0770000mg/l0.0770000
2/1/201373.0030.0750000mg/l0.0730000
3/1/201353.0030.0676700mg/l0.0530000
4/1/2013192.0030.0987500mg/l0.1920000
5/1/2013164.0030.1118000mg/l0.1640000
6/1/2013150.0030.1181700mg/l0.1500000
7/1/2013144.0030.1293300mg/l0.1440000
8/1/2013137.0030.1400000mg/l0.1370000
9/1/2013172.0030.1598300mg/l0.1720000
10/1/2013132.0030.1498300mg/l0.1320000
11/1/2013122.0020.1428300mg/l0.1220000
12/1/201390.0030.1328300mg/l0.0900000
1/1/201452.0040.1175000mg/l0.0520000
2/1/2014121.0040.1148300mg/l0.1210000
3/1/201487.0040.1006700mg/l0.0870000
4/1/2014119.0040.0985000mg/l0.1190000
5/1/201493.0040.0936700mg/l0.0930000
6/1/2014165.0040.1061700mg/l0.1650000
7/1/2014409.0040.1656700mg/l0.4090000
8/1/2014346.0040.2031700mg/l0.3460000
9/1/2014255.0040.2311700mg/l0.2550000
10/1/2014218.0040.2476700mg/l0.2180000
11/1/2014195.0040.2646700mg/l0.1950000
12/1/201451.0040.2456700mg/l0.0510000
1/1/201582.0030.1911700mg/l0.0820000
2/1/201569.0030.1450000mg/l0.0690000
3/1/20151320.0030.3225000mg/l1.3200000
4/1/2015122.0020.3065000mg/l0.1220000
5/1/2015175.0020.3031700mg/l0.1750000
6/1/2015174.0030.3236700mg/l0.1740000
7/1/2015166.0020.3376700mg/l0.1660000
8/1/2015242.0020.3665000mg/l0.2420000
9/1/2015215.0020.1823300mg/l0.2150000
10/1/2015132.0010.1840000mg/l0.1320000
11/1/2015118.0010.1745000mg/l0.1180000
1/1/201662.0020.1538000mg/l0.0620000
5/1/2016108.0010.0850000mg/l0.1080000
6/1/2016299.0010.1563300mg/l0.2990000
7/1/2016409.0010.2720000mg/l0.4090000
8/1/2016202.0010.2545000mg/l0.2020000
9/1/2016232.0010.2500000mg/l0.2320000
10/1/2016169.0010.2365000mg/l0.1690000
11/1/2016329.0010.2733300mg/l0.3290000
12/1/2016114.0010.2425000mg/l0.1140000
1/1/201777.0010.1871700mg/l0.0770000
2/1/201792.0010.1688300mg/l0.0920000
3/1/2017125.0010.1510000mg/l0.1250000
4/1/2017129.0010.1443300mg/l0.1290000
5/1/2017761.0010.2163300mg/l0.7610000
6/1/2017224.0010.2346700mg/l0.2240000
7/1/2017392.0010.2871700mg/l0.3920000
8/1/2017274.0010.3175000mg/l0.2740000
9/1/2017302.0010.3470000mg/l0.3020000
10/1/2017197.0010.3583300mg/l0.1970000
11/1/201720.0010.2348300mg/l0.0200000
12/1/2017102.0010.2145000mg/l0.1020000
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
2017
Historical
period of record
High 127.7 194.0
Mean 63.59 58.03 30.37934
Low 33.06 0.00
No. of Samples 10 432

Five-year Rolling Average Graph

     
1/1/201372.20372.2000000percent (%)72.2000000
2/1/201355.50363.8500000percent (%)55.5000000
3/1/201389.60372.4300000percent (%)89.6000000
4/1/201321.20359.6300000percent (%)21.2000000
5/1/201366.20360.9400000percent (%)66.2000000
6/1/201320.90354.2700000percent (%)20.9000000
7/1/201350.10350.5800000percent (%)50.1000000
8/1/201351.30349.8800000percent (%)51.3000000
9/1/201344.80342.4200000percent (%)44.8000000
10/1/201362.50349.3000000percent (%)62.5000000
12/1/201391.40360.0200000percent (%)91.4000000
1/1/201491.10468.2200000percent (%)91.1000000
2/1/2014112.20480.4000000percent (%)112.2000000
3/1/201475.00486.4400000percent (%)75.0000000
4/1/201453.80484.7000000percent (%)53.8000000
5/1/201450.30478.9700000percent (%)50.3000000
6/1/201449.10471.9200000percent (%)49.1000000
7/1/201495.70472.6800000percent (%)95.7000000
8/1/201487.70468.6000000percent (%)87.7000000
9/1/201436.40462.1700000percent (%)36.4000000
10/1/201442.30460.2500000percent (%)42.3000000
11/1/201460.40461.9300000percent (%)60.4000000
12/1/201498.50470.1700000percent (%)98.5000000
1/1/201572.90366.3700000percent (%)72.9000000
2/1/201576.60364.5200000percent (%)76.6000000
3/1/201584.70372.5700000percent (%)84.7000000
6/1/201558.96773.2900000percent (%)57.3500000
7/1/201560.38570.1600000percent (%)59.3900000
8/1/201549.30163.3400000percent (%)49.3000000
9/1/201570.30159.7400000percent (%)70.3000000
10/1/201569.50161.6900000percent (%)69.5000000
11/1/201576.40164.1400000percent (%)76.4000000
1/1/201686.55270.4100000percent (%)86.5500000
2/1/2016103.00181.1500000percent (%)103.0000000
3/1/201682.50183.5900000percent (%)82.5000000
4/1/2016123.70194.4300000percent (%)123.7000000
6/1/201675.00194.1500000percent (%)75.0000000
7/1/201677.30192.3000000percent (%)77.3000000
8/1/201663.40184.3800000percent (%)63.4000000
9/1/201633.20174.5200000percent (%)33.2000000
10/1/201697.00169.1800000percent (%)97.0000000
11/1/201695.80173.6200000percent (%)95.8000000
12/1/201696.00177.1200000percent (%)96.0000000
2/1/2017114.10187.2200000percent (%)114.1000000
3/1/201782.60197.1000000percent (%)82.6000000
4/1/2017127.701103.2400000percent (%)127.7000000
6/1/201756.90195.3300000percent (%)56.9000000
7/1/201733.06182.8700000percent (%)33.0600000
8/1/201744.10168.8700000percent (%)44.1000000
9/1/201740.90160.5300000percent (%)40.9000000
10/1/201746.30144.2500000percent (%)46.3000000
11/1/201768.60148.3100000percent (%)68.6000000
12/1/201783.30152.7100000percent (%)83.3000000
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

     
1/1/20130.5030.5000000mg/l0.5000000
2/1/20130.5030.5000000mg/l0.5000000
3/1/20130.5030.5000000mg/l0.5000000
4/1/20130.5030.5000000mg/l0.5000000
5/1/20130.5030.5000000mg/l0.5000000
6/1/20131.6030.6800000mg/l1.6000000
7/1/20130.5430.6900000mg/l0.5400000
8/1/20131.2730.8200000mg/l1.2700000
9/1/20130.8030.8700000mg/l0.8000000
10/1/20130.9230.9400000mg/l0.9200000
11/1/20130.5020.9400000mg/l0.5000000
12/1/20130.5030.7600000mg/l0.5000000
1/1/20140.5040.7500000mg/l0.5000000
2/1/20140.6140.6400000mg/l0.6100000
3/1/20140.8140.6400000mg/l0.8100000
4/1/20140.5040.5700000mg/l0.5000000
5/1/20140.5640.5800000mg/l0.5600000
6/1/20140.5430.5900000mg/l0.5400000
7/1/20140.7130.6200000mg/l0.7100000
8/1/20140.7630.6500000mg/l0.7600000
9/1/20140.6540.6200000mg/l0.6500000
10/1/20141.3540.7600000mg/l1.3500000
11/1/20141.0940.8500000mg/l1.0900000
12/1/20140.5040.8400000mg/l0.5000000
1/1/20150.5030.8100000mg/l0.5000000
2/1/20150.6830.8000000mg/l0.6800000
3/1/20158.0132.0200000mg/l8.0100000
4/1/20150.5021.8800000mg/l0.5000000
5/1/20150.5021.7800000mg/l0.5000000
6/1/20150.5031.7800000mg/l0.5000000
7/1/20151.1721.8900000mg/l1.1700000
8/1/20150.8621.9200000mg/l0.8600000
9/1/20150.5320.6800000mg/l0.5300000
10/1/20150.6610.7000000mg/l0.6600000
11/1/20151.0210.7900000mg/l1.0200000
1/1/20160.5020.7100000mg/l0.5000000
2/1/20160.7310.6900000mg/l0.7300000
3/1/20160.8610.7500000mg/l0.8600000
4/1/20160.5010.7200000mg/l0.5000000
5/1/20160.5010.6200000mg/l0.5000000
6/1/20161.0010.6800000mg/l1.0000000
7/1/20161.0010.7700000mg/l1.0000000
8/1/20161.0010.8100000mg/l1.0000000
9/1/20161.0010.8300000mg/l1.0000000
10/1/20161.1010.9300000mg/l1.1000000
11/1/20161.0011.0200000mg/l1.0000000
12/1/20161.0011.0200000mg/l1.0000000
1/1/20171.5811.1100000mg/l1.5800000
2/1/20172.0611.2900000mg/l2.0600000
3/1/20171.0011.2900000mg/l1.0000000
4/1/20171.0011.2700000mg/l1.0000000
5/1/201710.4012.8400000mg/l10.4000000
7/1/20171.2113.1300000mg/l1.2100000
8/1/20171.0012.9200000mg/l1.0000000
9/1/20171.2212.9700000mg/l1.2200000
10/1/20171.3013.0300000mg/l1.3000000
11/1/20171.1011.1700000mg/l1.1000000
12/1/20171.0011.1400000mg/l1.0000000

Color

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

Five-year Rolling Average Graph

     
2/1/201650.00150.0000000PCU50.0000000
3/1/201650.00150.0000000PCU50.0000000
4/1/201655.00151.6700000PCU55.0000000
5/1/201640.00148.7500000PCU40.0000000
6/1/201660.00151.0000000PCU60.0000000
7/1/201650.00150.8300000PCU50.0000000
8/1/201680.00155.8300000PCU80.0000000
9/1/2016120.00167.5000000PCU120.0000000
10/1/201660.00168.3300000PCU60.0000000
11/1/201640.00168.3300000PCU40.0000000
12/1/201640.00165.0000000PCU40.0000000
1/1/201760.00166.6700000PCU60.0000000
2/1/201740.00160.0000000PCU40.0000000
3/1/201750.00148.3300000PCU50.0000000
4/1/201750.00146.6700000PCU50.0000000
5/1/2017300.00190.0000000PCU300.0000000
7/1/201780.001104.0000000PCU80.0000000
8/1/201780.001112.0000000PCU80.0000000
9/1/201775.001117.0000000PCU75.0000000
10/1/201780.001123.0000000PCU80.0000000
11/1/201760.00175.0000000PCU60.0000000
12/1/201750.00170.8300000PCU50.0000000

Enterococcus Group Bacteria

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

Five-year Rolling Average Graph

     
1/1/201318.00318.0000000ug/l18.0000000
2/1/20138.00313.0000000ug/l8.0000000
3/1/20138.00311.3300000ug/l8.0000000
4/1/201316.00312.5000000ug/l16.0000000
5/1/201316.00313.2000000ug/l16.0000000
6/1/20138.00312.3300000ug/l8.0000000
7/1/201316.00312.0000000ug/l16.0000000
8/1/201316.00313.3300000ug/l16.0000000
9/1/201316.00314.6700000ug/l16.0000000
10/1/201327.00316.5000000ug/l27.0000000
11/1/20138.00215.1700000ug/l8.0000000
12/1/20138.00315.1700000ug/l8.0000000
1/1/20147.20513.7000000ug/l2.2600000
2/1/20146.40512.1000000ug/l2.0100000
3/1/2014168.84537.5700000ug/l53.0000000
4/1/20149.75434.7000000ug/l2.3100000
5/1/20146.00434.3700000ug/l1.4200000
6/1/201414.40535.4300000ug/l4.5200000
7/1/20146.40535.3000000ug/l2.0100000
8/1/20146.40535.3000000ug/l2.0100000
9/1/2014464.92584.6500000ug/l145.9400000
10/1/201428.81587.8200000ug/l9.0400000
11/1/201446.41594.5600000ug/l14.5700000
12/1/20146.40593.2200000ug/l2.0100000
1/1/20158.00393.4900000ug/l8.0000000
2/1/20158.00393.7600000ug/l8.0000000
3/1/2015120.00336.2700000ug/l120.0000000
4/1/20158.00232.8000000ug/l8.0000000
5/1/20158.00226.4000000ug/l8.0000000
6/1/201529.00330.1700000ug/l29.0000000
7/1/201537.00235.0000000ug/l37.0000000
8/1/20158.00235.0000000ug/l8.0000000
9/1/20158.00216.3300000ug/l8.0000000
10/1/201536.00121.0000000ug/l36.0000000
11/1/201516.00122.3300000ug/l16.0000000
1/1/20168.00115.2000000ug/l8.0000000
2/1/201631.00119.8000000ug/l31.0000000
8/1/201619.00119.0000000ug/l19.0000000
9/1/2016111.00165.0000000ug/l111.0000000
11/1/2016108.00179.3300000ug/l108.0000000
4/1/201724.00166.0000000ug/l24.0000000
7/1/2017114.00169.0000000ug/l114.0000000
9/1/201763.00167.0000000ug/l63.0000000

Nitrogen, Kjeldahl

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

Five-year Rolling Average Graph

     
1/1/2013566.003566.0000000ug/l566.0000000
2/1/2013526.003546.0000000ug/l526.0000000
3/1/2013643.003578.3300000ug/l643.0000000
4/1/2013268.003500.7500000ug/l268.0000000
5/1/2013722.003545.0000000ug/l722.0000000
6/1/2013885.003601.6700000ug/l885.0000000
7/1/20131150.003699.0000000ug/l1150.0000000
8/1/20131070.003789.6700000ug/l1070.0000000
9/1/20131280.003895.8300000ug/l1280.0000000
10/1/20131030.0031022.8300000ug/l1030.0000000
11/1/2013895.0021051.6700000ug/l895.0000000
12/1/2013757.0031030.3300000ug/l757.0000000
1/1/2014725.004959.5000000ug/l725.0000000
2/1/2014742.004904.8300000ug/l742.0000000
3/1/20141330.004913.1700000ug/l1330.0000000
4/1/2014787.004872.6700000ug/l787.0000000
5/1/2014645.004831.0000000ug/l645.0000000
6/1/2014776.004834.1700000ug/l776.0000000
7/1/2014802.004847.0000000ug/l802.0000000
8/1/20141040.004896.6700000ug/l1040.0000000
9/1/20141250.004883.3300000ug/l1250.0000000
10/1/20141500.0041002.1700000ug/l1500.0000000
11/1/20141290.0041109.6700000ug/l1290.0000000
12/1/2014728.0041101.6700000ug/l728.0000000
1/1/2015738.0031091.0000000ug/l738.0000000
2/1/2015799.0031050.8300000ug/l799.0000000
3/1/20153080.0031355.8300000ug/l3080.0000000
4/1/2015731.0021227.6700000ug/l731.0000000
5/1/2015957.0021172.1700000ug/l957.0000000
6/1/2015881.0031197.6700000ug/l881.0000000
7/1/20151230.0021279.6700000ug/l1230.0000000
8/1/2015973.0021308.6700000ug/l973.0000000
9/1/20151000.002962.0000000ug/l1000.0000000
10/1/20151290.0011055.1700000ug/l1290.0000000
11/1/2015989.0011060.5000000ug/l989.0000000
1/1/2016820.0021014.4000000ug/l820.0000000
2/1/2016925.0011004.8000000ug/l925.0000000
3/1/2016878.001980.4000000ug/l878.0000000
4/1/2016707.001863.8000000ug/l707.0000000
5/1/20161630.001992.0000000ug/l1630.0000000
6/1/20161220.0011030.0000000ug/l1220.0000000
7/1/20161370.0011121.6700000ug/l1370.0000000
8/1/20161280.0011180.8300000ug/l1280.0000000
9/1/20161560.0011294.5000000ug/l1560.0000000
10/1/20161170.0011371.6700000ug/l1170.0000000
11/1/20161080.0011280.0000000ug/l1080.0000000
12/1/2016876.0011222.6700000ug/l876.0000000
1/1/20171280.0011207.6700000ug/l1280.0000000
2/1/2017982.0011158.0000000ug/l982.0000000
3/1/20171000.0011064.6700000ug/l1000.0000000
4/1/20171010.0011038.0000000ug/l1010.0000000
5/1/20173460.0011434.6700000ug/l3460.0000000
7/1/20171310.0011552.4000000ug/l1310.0000000
8/1/2017781.0011512.2000000ug/l781.0000000
9/1/20171050.0011522.2000000ug/l1050.0000000
10/1/20171040.0011528.2000000ug/l1040.0000000
11/1/2017836.0011003.4000000ug/l836.0000000
12/1/2017837.001975.6700000ug/l837.0000000

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

     
1/1/2013203.003203.0000000ug/l203.0000000
2/1/201364.003133.5000000ug/l64.0000000
3/1/201364.003110.3300000ug/l64.0000000
4/1/201334.00391.2500000ug/l34.0000000
5/1/201322.00377.4000000ug/l22.0000000
6/1/201385.00378.6700000ug/l85.0000000
7/1/2013256.00387.5000000ug/l256.0000000
8/1/2013152.003102.1700000ug/l152.0000000
9/1/2013309.003143.0000000ug/l309.0000000
10/1/2013123.003157.8300000ug/l123.0000000
11/1/2013252.002196.1700000ug/l252.0000000
12/1/2013169.003210.1700000ug/l169.0000000
1/1/201474.004179.8300000ug/l74.0000000
2/1/2014118.004174.1700000ug/l118.0000000
3/1/201455.004131.8300000ug/l55.0000000
4/1/2014131.004133.1700000ug/l131.0000000
5/1/201499.004107.6700000ug/l99.0000000
6/1/2014106.00497.1700000ug/l106.0000000
7/1/201494.004100.5000000ug/l94.0000000
8/1/201471.00492.6700000ug/l71.0000000
9/1/201480.00496.8300000ug/l80.0000000
10/1/2014292.004123.6700000ug/l292.0000000
11/1/2014261.004150.6700000ug/l261.0000000
12/1/201497.004149.1700000ug/l97.0000000
1/1/2015131.003155.3300000ug/l131.0000000
2/1/20154.003144.1700000ug/l4.0000000
3/1/2015404.003198.1700000ug/l404.0000000
4/1/201543.002156.6700000ug/l43.0000000
5/1/20154.002113.8300000ug/l4.0000000
6/1/201543.003104.8300000ug/l43.0000000
7/1/2015121.002103.1700000ug/l121.0000000
8/1/2015118.002122.1700000ug/l118.0000000
9/1/2015221.00291.6700000ug/l221.0000000
10/1/2015160.001111.1700000ug/l160.0000000
11/1/2015222.001147.5000000ug/l222.0000000
1/1/2016133.002170.8000000ug/l133.0000000
3/1/2016142.001164.2500000ug/l142.0000000
6/1/2016113.001129.3300000ug/l113.0000000
9/1/2016176.001144.5000000ug/l176.0000000
10/1/2016133.001140.6700000ug/l133.0000000
11/1/2016130.001138.0000000ug/l130.0000000
7/1/2017237.001237.0000000ug/l237.0000000
8/1/2017211.001224.0000000ug/l211.0000000
9/1/2017265.001237.6700000ug/l265.0000000
10/1/2017257.001242.5000000ug/l257.0000000
11/1/2017175.001229.0000000ug/l175.0000000
12/1/2017147.001215.3300000ug/l147.0000000

Oysters

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

Five-year Rolling Average Graph

     
1/1/200680.90380.9000000%80.9000000
1/1/200776.86376.8600000%76.8600000
1/1/200871.52371.5200000%71.5200000
1/1/200975.39375.3900000%75.3900000
1/1/201071.88371.8800000%71.8800000
1/1/201185.24385.2400000%85.2400000
1/1/201381.26481.2600000%81.2600000

pH

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

Five-year Rolling Average Graph

     
1/1/20137.6237.6200000None7.6200000
2/1/20137.6637.6400000None7.6600000
3/1/20137.7337.6700000None7.7300000
4/1/20137.4837.6200000None7.4800000
5/1/20137.7937.6600000None7.7900000
6/1/20137.2737.5900000None7.2700000
7/1/20137.6537.6000000None7.6500000
8/1/20137.4237.5600000None7.4200000
9/1/20137.3837.5000000None7.3800000
10/1/20137.5337.5100000None7.5300000
12/1/20137.7637.5500000None7.7600000
1/1/20147.7837.5700000None7.7800000
2/1/20147.7647.6400000None7.7600000
3/1/20147.6537.7000000None7.6500000
4/1/20147.4437.6800000None7.4400000
5/1/20147.5337.6500000None7.5300000
6/1/20147.4937.6100000None7.4900000
7/1/20147.8737.6200000None7.8700000
8/1/20147.6837.6100000None7.6800000
9/1/20147.4847.5800000None7.4800000
10/1/20147.2737.5500000None7.2700000
11/1/20147.4737.5400000None7.4700000
12/1/20147.8147.6000000None7.8100000
1/1/20157.5937.5500000None7.5900000
2/1/20157.4937.5200000None7.4900000
3/1/20157.7937.5700000None7.7900000
6/1/20157.2377.5300000None7.2200000
7/1/20157.3657.4700000None7.3600000
8/1/20157.2617.4100000None7.2600000
9/1/20157.3017.2900000None7.3000000
10/1/20157.6627.3600000None7.6600000
11/1/20157.6727.4100000None7.6700000
1/1/20167.6247.5000000None7.6200000
2/1/20167.4927.5500000None7.4900000
3/1/20167.7027.6300000None7.6900000
4/1/20167.7827.6500000None7.7800000
5/1/20167.4627.6100000None7.4600000
6/1/20167.5627.6000000None7.5500000
7/1/20167.6627.6100000None7.6500000
8/1/20167.3627.5900000None7.3500000
9/1/20167.2727.5200000None7.2600000
10/1/20167.7127.5000000None7.7000000
11/1/20167.8627.5700000None7.8500000
12/1/20167.8427.6200000None7.8400000
1/1/20177.6127.6100000None7.6100000
2/1/20177.8727.6900000None7.8600000
3/1/20177.6927.7600000None7.6900000
4/1/20178.0327.8200000None8.0300000
5/1/20177.8927.8200000None7.8900000
6/1/20177.1017.7000000None7.1000000
7/1/20177.4227.6700000None7.4200000
8/1/20177.5627.6200000None7.5600000
9/1/20177.3227.5500000None7.3200000
10/1/20177.6617.4900000None7.6600000
11/1/20177.7527.4700000None7.7400000
12/1/20177.8427.5900000None7.8300000

Salinity

Units: PSS Year
2017
Historical
period of record
High 2.4 29.5
Mean 0.54 0.91 5.0243
Low 0.32 0.00
No. of Samples 12 342

Five-year Rolling Average Graph

     
1/1/20130.6330.6300000PSS0.6300000
2/1/20130.6830.6600000PSS0.6800000
3/1/20130.6530.6500000PSS0.6500000
4/1/20130.5930.6400000PSS0.5900000
5/1/20130.6330.6400000PSS0.6300000
6/1/20130.3630.5900000PSS0.3600000
7/1/20130.3930.5500000PSS0.3900000
8/1/20130.2930.4900000PSS0.2900000
9/1/20130.3430.4300000PSS0.3400000
10/1/20130.5330.4200000PSS0.5300000
12/1/20130.5330.4200000PSS0.5300000
1/1/20140.5740.4500000PSS0.5700000
2/1/20140.5640.5100000PSS0.5600000
3/1/20140.5240.5400000PSS0.5200000
4/1/20140.5440.5400000PSS0.5400000
5/1/20140.4740.5300000PSS0.4700000
6/1/20140.4640.5200000PSS0.4600000
7/1/20140.2840.4700000PSS0.2800000
8/1/20140.4040.4500000PSS0.4000000
9/1/20140.4540.4300000PSS0.4500000
10/1/20140.4140.4100000PSS0.4100000
11/1/20140.4440.4100000PSS0.4400000
12/1/20140.5540.4200000PSS0.5500000
1/1/20150.6330.4800000PSS0.6300000
2/1/20150.5030.5000000PSS0.5000000
3/1/20150.1930.4500000PSS0.1900000
6/1/20150.5570.4700000PSS0.5300000
7/1/20152.5850.9600000PSS1.0700000
8/1/20150.3310.9100000PSS0.3300000
9/1/20150.4410.9800000PSS0.4400000
10/1/20150.4910.8800000PSS0.4900000
11/1/20150.5510.8200000PSS0.5500000
1/1/20160.4520.4500000PSS0.4500000
2/1/20160.4510.4800000PSS0.4500000
3/1/20160.3010.4500000PSS0.3000000
4/1/20160.5810.4700000PSS0.5800000
5/1/20160.4710.4500000PSS0.4700000
6/1/20160.4710.4500000PSS0.4700000
7/1/20160.3510.4400000PSS0.3500000
8/1/20160.2910.4100000PSS0.2900000
9/1/20160.3210.4100000PSS0.3200000
10/1/20160.4910.4000000PSS0.4900000
11/1/20160.7410.4400000PSS0.7400000
12/1/20160.6110.4700000PSS0.6100000
1/1/20170.5910.5100000PSS0.5900000
2/1/20170.5410.5500000PSS0.5400000
3/1/20170.4610.5700000PSS0.4600000
4/1/20170.6410.6000000PSS0.6400000
5/1/20172.3510.8700000PSS2.3500000
6/1/20170.4310.8400000PSS0.4300000
7/1/20170.3710.8000000PSS0.3700000
8/1/20170.4110.7800000PSS0.4100000
9/1/20170.3210.7500000PSS0.3200000
10/1/20170.4810.7300000PSS0.4800000
11/1/20170.4710.4100000PSS0.4700000
12/1/20170.5410.4300000PSS0.5400000

Specific conductance

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

Five-year Rolling Average Graph

     
1/1/20131253.0031253.0000000umho1253.0000000
2/1/20131347.0031300.0000000umho1347.0000000
3/1/20131285.0031295.0000000umho1285.0000000
4/1/20131180.0031266.2500000umho1180.0000000
5/1/20131274.0031267.8000000umho1274.0000000
6/1/2013745.0031180.6700000umho745.0000000
7/1/2013806.0031106.1700000umho806.0000000
8/1/2013595.003980.8300000umho595.0000000
9/1/2013697.003882.8300000umho697.0000000
10/1/20131076.003865.5000000umho1076.0000000
12/1/20131064.003847.6000000umho1064.0000000
1/1/20141145.004915.4000000umho1145.0000000
2/1/20141132.0041022.8000000umho1132.0000000
3/1/20141050.0041093.4000000umho1050.0000000
4/1/20141102.0041098.6000000umho1102.0000000
5/1/2014967.0041076.6700000umho967.0000000
6/1/2014941.0041056.1700000umho941.0000000
7/1/2014580.004962.0000000umho580.0000000
8/1/2014821.004910.1700000umho821.0000000
9/1/2014922.004888.8300000umho922.0000000
10/1/2014845.004846.0000000umho845.0000000
11/1/2014894.004833.8300000umho894.0000000
12/1/20141093.004859.1700000umho1093.0000000
1/1/20151247.003970.3300000umho1247.0000000
2/1/20151000.0031000.1700000umho1000.0000000
3/1/2015397.003912.6700000umho397.0000000
6/1/20151062.717926.6800000umho1054.1300000
7/1/20155372.7541958.1200000umho2716.8800000
10/1/2015994.0012476.4900000umho994.0000000
11/1/20151106.0012133.8700000umho1106.0000000
1/1/2016915.5021005.1700000umho915.5000000
2/1/2016909.001981.1300000umho909.0000000
3/1/2016627.001910.3000000umho627.0000000
4/1/20161165.001944.5000000umho1165.0000000
5/1/2016960.001915.3000000umho960.0000000
6/1/2016961.001922.9200000umho961.0000000
7/1/2016725.001891.1700000umho725.0000000
8/1/2016604.001840.3300000umho604.0000000
9/1/2016664.001846.5000000umho664.0000000
10/1/2016984.001816.3300000umho984.0000000
11/1/20161414.001892.0000000umho1414.0000000
12/1/20161222.001935.5000000umho1222.0000000
1/1/20171058.001991.0000000umho1058.0000000
2/1/20171092.0011072.3300000umho1092.0000000
3/1/2017926.0011116.0000000umho926.0000000
4/1/20171265.0011162.8300000umho1265.0000000
5/1/20174992.0011759.1700000umho4992.0000000
6/1/2017880.0011702.1700000umho880.0000000
7/1/2017759.0011652.3300000umho759.0000000
8/1/2017825.0011607.8300000umho825.0000000
9/1/2017658.0011563.1700000umho658.0000000
11/1/2017950.001814.4000000umho950.0000000
12/1/2017950.001828.4000000umho950.0000000

Temperature, water

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

Five-year Rolling Average Graph

     
1/1/201368.02268.0200000deg F68.0200000
2/1/201369.10268.5600000deg F69.1000000
3/1/201360.39265.8400000deg F60.3900000
4/1/201376.69268.5500000deg F76.6900000
5/1/201378.98270.6400000deg F78.9800000
6/1/201384.79273.0000000deg F84.7900000
7/1/201385.60275.9300000deg F85.6000000
8/1/201383.43278.3100000deg F83.4300000
9/1/201383.80282.2200000deg F83.8000000
10/1/201374.95281.9300000deg F74.9500000
12/1/201368.67279.2900000deg F68.6700000
1/1/201456.71373.5100000deg F56.7100000
2/1/201472.34371.2900000deg F72.3400000
3/1/201471.15368.7600000deg F71.1500000
4/1/201479.11369.6000000deg F79.1100000
5/1/201479.25371.2100000deg F79.2500000
6/1/201484.92373.9100000deg F84.9200000
7/1/201486.68378.9100000deg F86.6800000
8/1/201473.96379.1800000deg F73.9600000
9/1/201482.27381.0300000deg F82.2700000
10/1/201480.60381.2800000deg F80.6000000
11/1/201462.76378.5300000deg F62.7600000
12/1/201460.06374.3900000deg F60.0600000
1/1/201563.03270.4500000deg F63.0300000
2/1/201566.79269.2500000deg F66.7900000
3/1/201572.01267.5400000deg F72.0100000
6/1/201582.18671.0000000deg F82.1600000
7/1/201582.96575.9900000deg F82.9400000
8/1/201587.33181.1200000deg F87.3300000
9/1/201583.71184.0500000deg F83.7100000
10/1/201577.40182.7200000deg F77.4000000
11/1/201571.83180.9000000deg F71.8300000
1/1/201657.99175.6500000deg F57.9900000
2/1/201668.65171.9200000deg F68.6500000
3/1/201670.25169.2200000deg F70.2500000
4/1/201677.02169.1500000deg F77.0200000
5/1/201678.80170.5400000deg F78.8000000
6/1/201682.29172.5000000deg F82.2900000
7/1/201685.26177.0500000deg F85.2600000
8/1/201686.25179.9800000deg F86.2500000
9/1/201683.17182.1300000deg F83.1700000
10/1/201671.06181.1400000deg F71.0600000
11/1/201660.19178.0400000deg F60.1900000
12/1/201673.08176.5000000deg F73.0800000
1/1/201769.21173.8300000deg F69.2100000
2/1/201769.80171.0900000deg F69.8000000
3/1/201765.43168.1300000deg F65.4300000
4/1/201773.94168.6100000deg F73.9400000
5/1/201782.18172.2700000deg F82.1800000
6/1/201782.18173.7900000deg F82.1800000
7/1/201785.64176.5300000deg F85.6400000
8/1/201785.28179.1100000deg F85.2800000
9/1/201783.48182.1200000deg F83.4800000
11/1/201762.60179.8400000deg F62.6000000
12/1/201762.60175.9200000deg F62.6000000

Turbidity

Units: NTU Year
2017
Historical
period of record
High 17.0 42.0
Mean 2.65 2.86 4.99456
Low 0.59 0.30
No. of Samples 10 418

Five-year Rolling Average Graph

     
1/1/20130.9030.9000000NTU0.9000000
2/1/20130.7030.8000000NTU0.7000000
3/1/20130.3030.6300000NTU0.3000000
4/1/20130.4030.5800000NTU0.4000000
5/1/20130.3030.5200000NTU0.3000000
6/1/20133.1030.9500000NTU3.1000000
7/1/20133.7031.4200000NTU3.7000000
8/1/20133.9031.9500000NTU3.9000000
9/1/20134.9032.7200000NTU4.9000000
10/1/20133.4033.2200000NTU3.4000000
11/1/20132.2023.5300000NTU2.2000000
12/1/20132.0033.3500000NTU2.0000000
1/1/20140.8642.8800000NTU0.8600000
2/1/20142.0042.5600000NTU2.0000000
3/1/20143.3042.2900000NTU3.3000000
4/1/20140.9041.8800000NTU0.9000000
5/1/20140.7041.6300000NTU0.7000000
6/1/20141.9041.6100000NTU1.9000000
7/1/20142.6041.9000000NTU2.6000000
8/1/20141.5041.8200000NTU1.5000000
9/1/20141.9041.5800000NTU1.9000000
10/1/20142.8041.9000000NTU2.8000000
11/1/20144.2042.4800000NTU4.2000000
12/1/20141.1042.3500000NTU1.1000000
1/1/20151.2032.1200000NTU1.2000000
2/1/20151.2032.0700000NTU1.2000000
3/1/201518.0034.7500000NTU18.0000000
4/1/20150.4624.3600000NTU0.4600000
5/1/20150.7923.7900000NTU0.7900000
6/1/20151.3033.8300000NTU1.3000000
7/1/20151.9023.9400000NTU1.9000000
8/1/20151.7024.0300000NTU1.7000000
9/1/20151.4021.2600000NTU1.4000000
10/1/20150.8911.3300000NTU0.8900000
11/1/20151.3011.4200000NTU1.3000000
1/1/20161.4021.3400000NTU1.4000000
2/1/20161.4011.2800000NTU1.4000000
3/1/20161.2011.2400000NTU1.2000000
4/1/20160.7011.2000000NTU0.7000000
5/1/20161.1011.1600000NTU1.1000000
6/1/20161.0011.1300000NTU1.0000000
7/1/20164.6011.6700000NTU4.6000000
8/1/20161.0011.6000000NTU1.0000000
9/1/20161.7011.6800000NTU1.7000000
10/1/20162.0011.9000000NTU2.0000000
11/1/20164.5512.4800000NTU4.5500000
12/1/20161.8012.6100000NTU1.8000000
1/1/20172.2012.2100000NTU2.2000000
2/1/20170.7912.1700000NTU0.7900000
3/1/20177.8013.1900000NTU7.8000000
4/1/20170.5912.9600000NTU0.5900000
5/1/201717.0015.0300000NTU17.0000000
6/1/20173.3015.2800000NTU3.3000000
7/1/20171.8015.2100000NTU1.8000000
8/1/20171.9015.4000000NTU1.9000000
9/1/20173.8014.7300000NTU3.8000000
10/1/20172.9015.1200000NTU2.9000000
Other Measures of Creek Health

Oysters

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

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Most Recent Sarasota County Oyster Monitoring Program Data
Icon Site ID Year Dead Live Total % Live
1 CAT1 2013 0 0 0 0
2 NC1 2013 116 540 656 82
3 NC2 2013 0 0 0 0
4 NC2A 2013 21 54 75 72

Impervious Features

Catfish Creek is located within the Little Sarasota Bay Watershed. View details about the Little 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 Catfish Creek Basin is covered by impervious surfaces.

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Land Use / Land Cover

Catfish Creek is located within the Little Sarasota Bay Watershed. View details about the Little Sarasota Bay Watershed »

Land use within a creek's watershed has a major effect on its water quality. In general, less development means better water quality. Land Cover/Land Use classifications categorize land in terms of its observed physical surface characteristics (e.g. upland or wetland), and also reflect the types of activity that are taking place on it (agriculture, urban/built-up, utilities, etc.). Florida uses as its standard a set of statewide classifications which were developed by the Florida Department of Transportation. Learn more about Land Use and Land Cover »

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Data Sources

The data sources listed below provided water quality data used to create the report on this page. Not all data sources provided data for every creek, and not every Creek Conditions Report used data from all listed data sources. While some data sources have no data for the scored year, they provided period-of-record (historical high, mean, low) data. Click on a data source name to review its metadata.