Table 2.4 Groundwater monitoring indicator system for typical OCS
Type
Name
Quantity
Basic indicators (mandatory)
Potassium, calcium, sodium, magnesium,
sulfate, chloride, carbonate, bicarbonate
8
pH, dissolved oxygen, ORP, conductivity,
chromaticity, flavor level, turbidity,
macroscopic objects, total hardness, TDS,
iron, manganese, copper, zinc, volatile
phenols, anionic synthetic detergents,
permanganate index, nitrate nitrogen,
nitrite nitrogen, ammonia nitrogen,
fluoride, cyanide, mercury, arsenic,
selenium, cadmium, chromium
(hexavalent), lead, total coliforms, HCH,
DDT, molybdenum, cobalt, rhodium,
ruthenium, nickel, gross alpha
radioactivity, gross beta radioactivity, total
bacteria
Total nitrogen, total phosphorus, oil,
sulfide, total lead, total chromium, total
arsenic, total vanadium, total nickel,
cyanide
49
Mandatory
characteristic
indicators
VOCs
Naphthalene, volatile phenols, polycyclic
aromatic hydrocarbons (PAHs), BaP,
phenol, halogenated hydrocarbons
6
Benzene, toluene, ethylbenzene, o-xylene,
m-(p-xylene), 5-alkylbenzene
6
Methyl tert-butyl ether (MTBE)
1
Oil
TPH, C5-C9, C10-C4
3
Optional
characteristic
indicators
Leaded gasoline
additives for shock
absorber
Ethylene dibromide
(EDB), 1,2-dichloroethane (DCA)
2
Table 2.3 Mandatory indicators for groundwater investigation into typical HWLFs
Type
Name
Quantity
Natural background
ions (mandatory)
Potassium, calcium, sodium, magnesium, sulfate,
chloride, carbonate, bicarbonate
8
Conventional
indicators
(mandatory)
pH, dissolved oxygen, ORP, conductivity, chromaticity,
favor level, turbidity, macroscopic objects, total
hardness, TDS, iron, manganese, volatile phenols,
anionic synthetic detergents, permanganate index, nitrate
nitrogen, nitrite nitrogen, ammonia nitrogen, fluoride,
selenium, total coliforms
21
Mandatory
characteristic
indicators
Hexavalent chromium, zinc, copper, nickel, cadmium,
lead, mercury, arsenic, cyanide
9
Note For indicator-specific analysis methods, please refer to groundwater sampling, analysis, and
quality control groups
2.2 Content of Investigation
29
Type
Name
Quantity
Basic indicators (mandatory)
Potassium, calcium, sodium, magnesium,
sulfate, chloride, carbonate, bicarbonate
8
pH, dissolved oxygen, ORP, conductivity,
chromaticity, flavor level, turbidity,
macroscopic objects, total hardness, TDS,
iron, manganese, copper, zinc, volatile
phenols, anionic synthetic detergents,
permanganate index, nitrate nitrogen,
nitrite nitrogen, ammonia nitrogen,
fluoride, cyanide, mercury, arsenic,
selenium, cadmium, chromium
(hexavalent), lead, total coliforms, HCH,
DDT, molybdenum, cobalt, rhodium,
ruthenium, nickel, gross alpha
radioactivity, gross beta radioactivity, total
bacteria
Total nitrogen, total phosphorus, oil,
sulfide, total lead, total chromium, total
arsenic, total vanadium, total nickel,
cyanide
49
Mandatory
characteristic
indicators
VOCs
Naphthalene, volatile phenols, polycyclic
aromatic hydrocarbons (PAHs), BaP,
phenol, halogenated hydrocarbons
6
Benzene, toluene, ethylbenzene, o-xylene,
m-(p-xylene), 5-alkylbenzene
6
Methyl tert-butyl ether (MTBE)
1
Oil
TPH, C5-C9, C10-C4
3
Optional
characteristic
indicators
Leaded gasoline
additives for shock
absorber
Ethylene dibromide
(EDB), 1,2-dichloroethane (DCA)
2
Table 2.3 Mandatory indicators for groundwater investigation into typical HWLFs
Type
Name
Quantity
Natural background
ions (mandatory)
Potassium, calcium, sodium, magnesium, sulfate,
chloride, carbonate, bicarbonate
8
Conventional
indicators
(mandatory)
pH, dissolved oxygen, ORP, conductivity, chromaticity,
favor level, turbidity, macroscopic objects, total
hardness, TDS, iron, manganese, volatile phenols,
anionic synthetic detergents, permanganate index, nitrate
nitrogen, nitrite nitrogen, ammonia nitrogen, fluoride,
selenium, total coliforms
21
Mandatory
characteristic
indicators
Hexavalent chromium, zinc, copper, nickel, cadmium,
lead, mercury, arsenic, cyanide
9
Note For indicator-specific analysis methods, please refer to groundwater sampling, analysis, and
quality control groups
2.2 Content of Investigation
29