Appendix C - Derived Constituents for Water Quality

Owned by Kester Scandrett
Last updated: 02 Jun, 2022
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' *** Water Quality
' *** 1) CHC - cyanobacteria
' *** 2) CHG - diatom algae
' *** 3) CHD - green algae
' *** 4) ROC - refractory particulate organic carbon
' *** 5) LOC - labile particulate organic carbon
' *** 6) DOC - dissolved organic carbon
' *** 7) ROP - refractory particulate organic phosphorus
' *** 8) LOP - labile particulate organic phosphorus
' *** 9) DOP - dissolved organic phosphorus
' *** 10) P4D - total phosphate
' *** 11) RON - refractory particulate organic nitrogen
' *** 12) LON - labile particulate organic nitrogen
' *** 13) DON - dissolved organic nitrogen
' *** 14) NHX - ammonia nitrogen
' *** 15) NOX - nitrate nitrogen
' *** 16) SUU - particulate biogenic silica
' *** 17) SAA - dissolved available silica
' *** 18) COD - chemical oxygen demand
' *** 19) DOX - dissolved oxygen
' *** 20) TAM - total active metal
' *** 21) FCB - fecal coliform bacteria
' *** NWQV+1) MAC - fecal coliform bacteria


' *** Water Quality Derived Parameters


' *** 23 - Total Organic Carbon
TOC = CHC + CHG + CHD + ROC + LOC + DOC


' *** 24 - Total N
TN = AlgaeRatio(N:C)*(CHC + CHG + CHD) + RON + LON + DON + NHX + NOX


' *** 25 - Total P
TP = AlgaeRatio(P:C)*(CHC + CHG + CHD) + ROP + LOP + DOP + P4D


' *** 26 - Chlorophyll a
Chl-a = AlgaeRatio(Chla:C)*CHC + AlgaeRatio(Chla:C)*CHG + AlgaeRatio(Chla:C)*CHD


' *** 27 - Total Organic N
TON = AlgaeRatio(N:C)*(CHC + CHG + CHD) + RON + LON + DON


' *** 28 - Total Inorganic N
TIN = NHX + NOX


' *** 29 - Total Organic P
TOP = AlgaeRatio(P:C)*(CHC + CHG + CHD) + ROP + LOP + DOP


' *** 48 - Carlson's Trophic State Index (TSI)

TSI = 9.81 In (Chlorophyll-a in ug/L) + 30.6


' *** 49 - Particulate Organic Carbon
POC = CHC + CHG + CHD + ROC + LOC


' *** 50 - Particulate Organic Phosphorus
POP = AlgaeRatio(P:C)*(CHC + CHG + CHD) + ROP + LOP


' *** 51 - Particulate Organic Nitrogen
PON = AlgaeRatio(N:C)*(CHC + CHG + CHD) + RON + LON


' *** 52 - Total Suspended Solids (Inorganic + Organic) TSS(io)
TSSio = TSED + TSND + CHC + CHG + CHD + ROC + LOC


' *** 53 - Total Kjedahl Nitrogen (TKN)
TKN = PON + NHX
TKN = AlgaeRatio(N:C)*(CHC + CHG + CHD) + RON + LON + NHX


' *** 54 - Total Dissolved Phosphorous (DOP+PO4)
TDP = DOP + PO4


' *** 55 - Macroalgae per unit area ug Chl-a/m2
MAC/m2 = AlgaeRatio(Chla:C)*MAC/Thickness[Layer 1]