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Inorganic & Physical Testing

Total as CaCO₃ at pH 4.5
SM 2320B
SM 2320B
SM 2320B
SM 2320B
AmmoniaUn-Ionized-NH₄ (Nitrogen)SM 4500NH3 D
BromideEPA 300.0/9056A/9056
ChlorineFree & Total ResidualHACH 8167/SM 4500Cl G
ChlorideEPA 300.0/EPA 9056/9056A
Chemical Oxygen DemandCODHACH 8000/EPA 410.4
ConductivityEC (Specific Conductivity)EPA 120.1
SM 4500 CN E
SM 4500CN I
Dissolved GasesMethane, Ethene, Ethane, PropaneRSK-175
DOC Diss. Organic CarbonSW 9060
FlashpointEPA 1010
FluorideEPA 300.0/9056A/9056
HardnessCalcium, (cal as CaCO3)
Magnesium (calc as CaCO3)
Total, (calc as CaCO3)
SM 2340B
SM 2340B
SM 2340B
Langlier Index(CaCO₃ Saturation)
Saturation Index

SM 2320B
Degress C
SM 2540 C
EPA 6020/6020A/200.8
NitrogenOrganic N (TKN- Ammonia)
Inorganic N (NO₂ + NO₃ + Ammonia)
Total N (TKN + NO₃ + NO₂)
Nitrate (NO3)as N300.0/9056/9056A
Nitrate (NO3)as Nitrate300.0/9056/9056A
Nitrite (NO2)as N300.0/9056/9056A
Nitrate-Nitriteas Total N300.0/9056/9056A
TKN (total Kjeldahl Nitrogen)as TKNEPA 351.2/SM4500-Norg C
Oil & GreaseHEM
EPA 1664B
EPA 1664B
Phosphateortho-PEPA 300.0/9056A/9056
SilicaSiO2EPA 6020/6020A/200.8
Sodium Absorption Rate SAREPA 6020
Specific Conductance (EC)at 25°CEPA 120.1
Sulfate SO4EPA 300.0/9056A/9056
Sulfide (S²¯)S²¯HACH 8193/SM4500-S2- B
Sulfite (SO₃)TotalSM 4500 SO3 B
Total Kjeldahl Nitrogen (TKN)TKNSM4500-Norg C /EPA 351.2
Total Organic CarbonTOCEPA 9060A/SM5310 C
Phosphorusas TotalHACH 8190/SM4500-P E/SM4500-P B/EPA 365.3
Total SolidsTSSM2450 B
Total Suspended SolidsTSSSM2450 D
Total Dissolved SolidsTDSSM2540 C
TurbidityEPA 180.1

Inorganic & Physical Testing Groups

General Mineral: (Alk. Ca, Cl, F, Cu, Fe, Mn, Zn, Hardness, K, Mg, Na, No₃, NO₂, EC, SO₄, TDS, pH)Various
Inorganic Chemical: (Al, Sb, As, Ba, Be, B, Cd, Cr, Pb, Hg, Ni, Tl, Se, Ag, Cyanide, Fl, NO₂, NO₃)Various
Domestic Well Water Profile: (Cl, Fe, Pb, Cu, Mn, EC, Total Coli form/e. Coli, Hardness, NO₃)Various
Inorganics Icon

We use state-of-the-art equipment and analytical testing procedures including inductively coupled plasma-optical emission spectroscopy (ICP-OES), inductively coupled plasma-mass spectroscopy (ICP-MS), atomic absorption, X-ray fluorescence, ion chromatography and classical chemical techniques.

Inorganic Viles





Nitrate Nitrite Icon


Phosphates icon


Total Nitrogen


Nitrate and Nitrite are naturally occurring ionic species that are part of the earth’s nitrogen cycle. They typically exist in the environment in highly water-soluble salts, in association with other ions such as sodium and potassium. Salts completely dissociate in aqueous environments. Nitrite is readily oxidized (combines with oxygen) to form nitrate. Nitrate is generally stable in the environment; however, it may be reduced to nitrite through biological processes involving plants, microbes, etc. In nature, plants utilize nitrate as an essential nutrient. In commerce, the majority of nitrate is used in inorganic fertilizers. Additional uses of commercial nitrate and nitrite include food preservation and the production of munitions and explosives. (source: ATSD)



Phosphates are chemicals containing the element phosphorous, and they affect water quality by causing excessive growth of algae. About 3 1/2 pounds of phosphates per person enter the environment in the United States annually from farms, yards, waste water and factory waste. Phosphates in water feed algae, which grow out of control in water ecosystems and create imbalances, which destroy other life forms and produce harmful toxins.

Phosphates found in water come from a range of sources. Runoff from fertilizer on lawns and gardens is one contributor. Others include human and pet sewage, chemical manufacturing, vegetable and fruit processing and the pulp and paper industry. Soil erosion in areas lacking sufficient vegetation to hold the soil in place during strong winds and heavy rain is another source of phosphate pollution.



Total nitrogen is the sum of the different forms found naturally in the water, including nitrate, nitrite and ammonia. Nitrogen enters surface waters naturally through the air and surface runoff, or through human activities such as wastewater discharges and agricultural practices. Elevated concentrations can result in the excessive growth of algae and aquatic plants.