Well Water Testing
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Note: this service is for Research Use Only and Not intended for clinical use.
If your drinking water is from a private well, you need to consider testing your well water regularly. Because sometimes, even if your well water looks very clean and tastes very good, there is still possibility of being contaminated by some microorganisms that you can't see, especially when there are old people, children and pregnant women in your family, and these people are more likely to be exposed to pollutants than others. You can't feel their existence, but they can still directly affect your health through drinking. Close attention needs to be paid to well water at different periods, especially when the conditions in the vicinity of the well change significantly, such as floods, new buildings or industrial activities, the water quality of the well such as smell, color, taste, etc. will change significantly. Regular testing of well water can identify problems of well water in a short time and ensure that the well water is suitable for humans and animals. Alfa Chemstry has extensive experience and advanced equipment in well water testing and can provide you with reliable testing services in compliance with the testing standards of the regulatory agencies, such as American Society for Testing Materials (ASTM).
Alfa Chemistry can offer various analytical testing services, some of which include:
| Testing Items | Project Content |
|---|---|
| Microbial contamination analysis | Total coliforms, total number of colonies, heat-resistant, coliforms, escherichia coli, staphylococcus aureus, etc. |
| Physical and chemical indicator | pH, turbidity, total hardness, total dissolved solids (TDS), total alkalinity, SS, color, phosphate, benzene (BTEX), odor, water temperature, conductivity, suspended solids, total nitrogen, total organic carbon , dissolved oxygen, petroleum and animal and vegetable oils, anionic surfactants, etc. |
| Inorganic anion | Sulfate, cyanide, fluoride, chloride, bromide, iodide, carbonate, bicarbonate, etc. |
| Nutrients and organic indicator | Ammonia nitrogen, permanganate index, chemical oxygen demand (CODCr), biochemical oxygen demand (BOD5), nitrate (in terms of N), nitrite (in terms of N), etc. |
| Metal content | As, Hg, Cr6+, Pb, Zn, Cu, Cd, Fe, Mn, Co, Ni, Mo, Be, Ba, K, Na, Ca, Mg, etc. |
| Organic pollutant | Naked eye visible substances, volatile phenols, polycyclic aromatic hydrocarbons (PAH), polychlorinated biphenyls (PCBs), adsorbable organic halides, volatile halogenated hydrocarbons, organochlorine pesticides, organophosphorus pesticides, volatile organic compounds (VOCs), semi-volatile organic compound (SVOCs), dioxins, total petroleum hydrocarbons (TPH), etc. |
| General chemicals analysis | General chemicals include asbestos, nitrate/nitrite, turbidity, cyanide, fluoride, etc. Among them, nitrate is a common pollutant mainly found in groundwater. Because nitrate can interfere with the ability of blood to carry oxygen, high nitrate concentration is especially dangerous for infants under six months. |
| Residue analysis | Residues include pesticides and herbicides, when there is a farm or the like near your well, your well may be contaminated by these substances. |
| Antibiotic content | Oxytetracycline, tetracycline, doxycycline, ciprofloxacin, norfloxacin, sulfamethoxazole, etc. |
| Other | Substance analysis of polyfluoroalkyl substances, disinfection by-products, dioxins, radon, etc. |
ASTM provides industry guidance for water quality systems, specifications, and statistics:
Alfa Chemistry's Environmental Analytical Laboratories provide a wide range of testing services to clients around the world. We can provide you with customized environmental testing services to get accurate testing results in the shortest time possible. To learn more about our services, please feel free to request a quote or consult our experienced scientists.
Techniques for well water testing
pH Meter
A pH meter is a commonly used instrument for measuring acidity and alkalinity, and it is an essential tool for testing the quality of well water. By measuring the pH value, the acidity or alkalinity of the water sample can be determined, as well as whether it meets drinking water standards. When using the pH meter, the electrode should be immersed in the water, and the device should be calibrated using the knob to ensure measurement accuracy.
Conductivity Meter
A conductivity meter is an instrument used to measure the conductivity of water samples. Conductivity indicates the degree to which an electrolyte conducts electricity in an electric field, and it is an important indicator for assessing well water quality. Generally, the higher the conductivity of a water sample, the more dissolved substances it contains, and the worse the water quality. When using a conductivity meter, the electrode should be immersed in the water, and readings should be taken after waiting for a period of time. Calibration should also be performed before use to ensure measurement accuracy.
Oxidation-Reduction Potential Meter (ORP Meter)
An ORP meter is used to measure the oxidation-reduction potential (ORP) of a water sample. ORP is an important indicator for evaluating the redox reaction ability of water, commonly used to assess the concentration of toxic and harmful substances in water. When using the ORP meter, the electrode should be immersed in the water, and readings should be taken after waiting for a period of time. Calibration should also be performed before use to ensure accurate results.
UV Spectrometer
A UV spectrometer uses ultraviolet light to irradiate a sample and measures the degree to which the sample absorbs UV light, thereby determining the content of organic and inorganic substances in the sample. In the case of well water testing, a UV spectrometer can be used to measure the content of organic substances. During use, the water sample should be injected into a test tube and placed in the UV spectrometer for measurement.
Other Instruments
In addition to the above instruments, flow meters, suspended solids meters, ozone detectors, and others can also be used to test well water. However, before using these instruments, it is necessary to select the appropriate one based on specific needs.
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