Howell Creek

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For more information about the Macroinvertebrate Monitoring Program, please contact:

Michelle Shelton
Macroinvertebrate Program Coordinator
200 West County Home Road
Sanford, FL 32773

Phone: (407) 665-5269

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Parameter	Latest Value	Historical Range	Additional Information
% Diptera	0.11 % 05/02/2007 Source: SEMCO_MACROINV	0.11 - 0.18 % 05/11/2004 - 05/02/2007 3 samples	Analyze This
% EOT	0.34 % 05/02/2007 Source: SEMCO_MACROINV	0.34 - 0.40 % 05/11/2004 - 05/02/2007 3 samples	Analyze This
Biorecon Score	6.0 04/02/2019 Source: SEMCO_MACROINV	5.5 - 9.7 05/11/2004 - 04/02/2019 18 samples	Analyze This
Biotic Index	16.0 04/02/2019 Source: SEMCO_MACROINV	10.0 - 24.0 05/11/2004 - 04/02/2019 15 samples	Analyze This
SCI Score	55.3 01/20/2009 Source: SEMCO_MACROINV	40.6 - 68.7 06/20/2007 - 01/20/2009 5 samples	Analyze This
SW Diversity Index	4.3 05/02/2007 Source: SEMCO_MACROINV	4.1 - 4.9 05/11/2004 - 05/02/2007 3 samples	Analyze This
Total # Individuals	317 # 05/02/2007 Source: SEMCO_MACROINV	239 - 584 # 05/11/2004 - 05/02/2007 3 samples	Analyze This
Total # Species	30 # 04/02/2019 Source: SEMCO_MACROINV	29 - 46 # 05/11/2004 - 04/02/2019 16 samples	Analyze This

Parameter	Latest Value	Historical Range	Additional Information
Dissolved oxygen (DO)	5.84 mg/l 07/28/2026 Source: SEMCO_PWWQ	0.10 - 166.00 mg/l 08/11/1965 - 07/28/2026 2,064 samples	Analyze This
Nitrogen	866.00 ug/l 04/20/2026 Source: SEMCO_PWWQ	4.00 - 16,400.00 ug/l 08/11/1965 - 04/20/2026 1,848 samples	Analyze This
pH	7.13 07/28/2026 Source: SEMCO_PWWQ	3.50 - 9.60 08/11/1965 - 07/28/2026 2,070 samples	Analyze This
Phosphorus as P	99.00 ug/l 04/20/2026 Source: SEMCO_PWWQ	0.00 - 21,780.00 ug/l 06/24/1966 - 04/20/2026 2,520 samples	Analyze This
Secchi disk depth	1.64 ft 05/13/2026 Source: WIN_21FLCEN	0.33 - 8.53 ft 03/17/1970 - 05/13/2026 936 samples	Analyze This
Temperature, water	81.52 deg F 07/28/2026 Source: SEMCO_PWWQ	41.00 - 91.40 deg F 08/11/1965 - 07/28/2026 2,073 samples	Analyze This
Total Suspended Solids (TSS)	3.40 mg/l 04/20/2026 Source: SEMCO_PWWQ	0.00 - 9,000.00 mg/l 08/11/1965 - 04/20/2026 1,166 samples	Analyze This
Turbidity	6.63 NTU 07/28/2026 Source: SEMCO_PWWQ	-5.20 - 33.70 NTU 06/24/1966 - 07/28/2026 1,565 samples	Analyze This

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