Black Rock Water Reclamation Plant
Black Rock Sludge (WRP sludge that is not applied to land. It is supplied to a third party, in combination with all other WRP sludge, for further processing into a dried biosolid)
11/5/17: Treated Water Reclamation Plant Effluent
PFOA 0.02ug/L
15/5/17: Black Rock Water Reclamation Plant Screw Conveyor 1
PFDoDA 0.0004mg/kg, PFHpA 0.0003mg/kg, PFHxS 0.0005mg/kg, PFHxA 0.0021mg/kg, FOSA 0.0003mg/kg, PFOS 0.0222mg/kg, PFOA 0.0051mg/kg, PFNA 0.0007mg/kg, Sum of PFAS 0.0454mg/kg, Sum of PFAS (WA DER list) 0.0307mg/kg, Sum of PFHxS + PFOS 0.0227mg/kg
27/10/17: Black Rock Water Reclamation Plant Influent
PFOS 0.01ug/L, PFOA 0.02ug/L
27/10/17: Black Rock Treated Water Reclamation Plant Effluent
PFOA 0.04ug/L
27/10/17: Black Rock Sludge
PFDA 0.0154mg/kg, PFDoDA 0.0009mg/kg, PFHpS 0.0013mg/kg, PFHpA 0.0005mg/kg, PFHxS 0.0037mg/kg, PFHxA 0.0064mg/kg, FOSA 0.0013mg/kg, PFOS 0.0153mg/kg, PFOA 0.0045mg/kg, PFTrDA 0.0003mg/kg, PFUnDA 0.0008mg/kg, PFNA 0.0006mg/kg, Sum of PFAS 0.0552mg/kg, Sum of PFASW (WA DER list) 0.0304mg/kg, Sum of PFHxS + PFOS 0.019mg/kg
26/3/19: Black Rock Sludge
PFDA 0.0078mg/kg, PFDoDA 0.0026mg/kg, PFOS 0.0097mg/kg, PFOA 0.0028mg/kg, Sum of PFAS 0.0276mg/kg, Sum of PFAS (WA DER list) 0.0125mg/kg, Sum of PFHxS 0.0097mg/kg
6/12/19: Black Rock Water Reclamation Plant Screw Conveyor 1
PFBA 12ug/kg, PFDoDA 3.2ug/kg, PFOS 14ug/kg, Sum of PFAS 29.2ug/kg, Sum of PFAS (WA DER list) 26ug/kg, Sum of PFHxS + PFOS 14ug/kg
6/1/21: Black Rock Water Reclamation Plant Screw Conveyor 1
EtFOSAA 0.0011mg/kg, MeFOSAA 0.0014mg/kg, PFDA 0.0032mg/kg, PFNA 0.0007mg/kg, PFOS 0.0061mg/kg, PFOA 0.0017mg/kg, PFPeA 0.0004mg/kg, Sum of PFAS 0.0146mg/kg, Sum of PFAS (WA DER list) 0.0082mg/kg, Sum of PFHxS and PFOS 0.0061mg/kg