DWT Bacteria Analysis-Aerobic & Anaerobic bacteria (500 ml bottles/half/quart)
Heterotrophic bacterial plate count, includes 2 Biolog ID (slime formers), ATP count of all organisms/ml, assessment anaerobic growth, sulfate reducing bacteria (SRBs), iron oxidizing bacteria (iron bacteria)
and microscopic analysis of all debris,(bacterial/mineral/physical)........................................................... $390.00
Best Option Bacterial Only

Untreated, pre-addressed sample bottles with field instructions for the proper timing of the samples are available. Please call or email and these will be sent to you at no charge.

If you use your own containers, please use an “untreated” and washed bottles consistent with at least the amount of water as listed above. Call for lab address and a faxed instruction sheet on how and when to sample for best results.

The timing of the sample is critical especially for assessment of bacterial problems. DO NOT just sample a pumping well and expect accurate analysis of the sample. You may even consider properly timed "Casing Samples" and "Aquifer Samples" to assess well problems verses aquifer problems.

Shipping cost is not included in the above prices. Prices are subject to change.

Call our Sales Office prior to sending.
Toll free in the US and Canada, #888-437-6426 or #952-474-4657
for discussion of the problem, credit arrangements and billing.
No samples will be processed without prior approvals.

Use when there is no information on water chemistry and the reason for declining Specific Capacity is unknown.

Our “Water Study” determines the potential for plugging due to incrustation (mineral scale) and bacteria (slime formers and iron bacteria). The chemical analysis includes corrosive vs. incrustive tendencies. The bacterial analysis includes 2 Biolog identifications and plate counts in colonies/ml to determine the severity of plugging due to slime bacteria. This includes microscopic identification of iron bacteria and organic debris. If both are negative, reduction of yield may be due to silt infiltration or physical problems. If corrosion is evident and chemistry does not indicate corrosive tendencies, a bacterial analysis may help determine the potential for corrosion (see Anaerobic growth below).

Use for bacterial tests only • iron bacteria, slime bacteria, odor problems, corrosion, & rising iron concentrations.

“DWT Bacterial Analysis-Aerobic & Anaerobic”
This includes 9 bacterial tests, Biolog IDs, counts per milliliter of aerobic growths (slime), anaerobic bacteria (odors/corrosion), Sulfate Reducing Bacteria (rotten egg odors or corrosion), ATP, and microscopic analysis for iron bacteria (ID & severity), physical debris and coliform and fecal coliform.

“DWT Bacterial Analysis-Aerobic”
(this test can be done on sludge samples as well as a water sample) This series of tests include 1 Biolog ID and plate count, ATP, and microscopic analysis for iron bacteria.

Explanation of individual tests
Biolog/Plate count: Normal plate counts average in the tens of colonies per milliliter whereas when plugging problems exist in wells, numbers will often exceed hundreds to thousands of colonies/ml. The ID provides tendencies and types of deposits. Anaerobic growth: A high percentage of anaerobic bacteria may indicate, 1. severe slime production. 2. reasons for
corrosion or odors. 3. a reason for persistent coliform bacteria. Sulfate Reducing Bacteria (SRBs) test will provide an identification of SRBs and severity. SRBs secrete a very corrosive enzyme and corrosion may be evident on drop pipes of pumps, pumps, casing, and screen. H2S gas is mainly produced by Sulfate Reducing Bacteria (SRBs) in groundwater which may even cause whitish water. SRBs can be naturally occurring soil bacteria and often found in low Permeable areas (clay or shale) of an aquifer or in dead areas of a well (sumps). H2S odors in new wells can be treated by aeration. A sudden appearance of odors in older wells may be due to: 1.) a new bladder style pressure tank replacing an older style galvanized air tank. The bladder entraps gas/odors which don’t escape until released at the faucet. 2.) mineral scale or slime present in
wells. SRBs are anaerobic and hide in this debris. As chlorine oxidizes the outer layer of debris, bacteria are exposed and odors can be extreme. SRBs can also cause corrosion, observed on metal parts. ATP test: (Adenosine Triphosphate) counts all live bacteria/ml. Normal aquifer counts will be in the low tens to hundreds of thousands. Numbers in the millions/ml may indicate massive growths and potential plugging. This test gives a second snap shot to the Biolog/plate analysis to determine severity of growth. Microscopic analysis identifies iron bacteria/severity, any other bacterial debris like decaying oxides, and physical debris present (sand, silts, etc.).

Scale or Deposit Analysis
This is a test for dried debris (mineral or bacterial) for chemical breakdown and analysis.  Send debris to our sales office for a chemical breakdonw that detrmines, success of chemistry, some idea of chemical makeup, and ease of dissolution. See Sludge/Debris Analysis page for pricing and sample locations.