For additional information on testing and pricing call (703) 471-4200.
Three levels of turnaround time (TAT) are available. Although handing times will vary depending on the test additional surcharges may apply for expedited services:
PRIORITY SAMPLE HANDLING
Routine 3-10 days 1 x routine price
Rush 2 days 2 x routine price
Emergency 1 day 3 x routine price
Microbiology Laboratory Services
Department of the Environment Water Supply Program
Certified Drinking Water Laboratory
Chain of Custody Forms
Center Disease Control and Prevention (CDC)
Environmental Legionella Isolation Techniques Evaluation
NOTE: Reference materials and links provided on our site are only intended to be used by clients of HPE who consult with us on these subjects. External links do not imply any endorsement or support for any position, service or product. Interpretive guidelines for laboratory results are only to be used by experienced and qualified experts in conjunction with all other necessary data and information.
Routine Environmental Testing Services
Microbiology Laboratory Overview
HP Environmental, Inc. considers the accuracy, reliability and reproducibility of analysis results to be a fundamental responsibility of laboratory management and is paramount to our continued effort to produce a superior product for our client.
Our commitment and dedication to quality is fully supported and communicated from management to the bench level to meet the objectives of the laboratory and to effectively serve client requirements. In order to achieve this goal, the laboratory has developed and executed a robust quality assurance program to control the precision and accuracy of data generated and limit sources of bias.
The objective of the quality assurance program is to produce reliable data of measurable quality that is defensible, representative of the sample and meets all required State, Environmental Protection Agency (EPA), National Institute of Occupational Health (NIOSH), American Industrial Hygiene Associate (AIHA), American Society of Testing and Materials (ASTM) and data user requirements. Complete adherence to laboratory standard operating procedures (SOPs), execution of good laboratory practices (GLPs), internal audit reviews and participation in external performance testing programs ensure the laboratory produces data of known and documented quality using EPA, AIHA, ASTM and NIOSH protocols and client specific requirements is mandated by management.
Contact us today to learn more about our microbiological testing services
(routine & customized methods) or to obtain a quote for your next PROJECT!
American Industrial Hygiene Association
Laboratory Accreditation Program
Order Containers, Media & Supplies
Online Test Request Form
HP Environmental, Inc. specializes in the testing of environmental water samples for Legionella and other pathogens at a competitive and reasonable cost. Legionella testing is performed using the standard culture method, Legiolert (developed by IDEXX) and direct fluorescent antibody (DFA). Our microbiology laboratory is ACCREDITED by the NYS Department of Health Environmental (NYSDOH) and is proficient in the analysis of Legionella using the internationally recognized standard ISO 11731:2017(E). The laboratory is also accredited by the American Industrial Hygiene Services (AIHA-LAP, LLC) in environmental microbiology and is approved as a CERTIFIED Drinking Water Laboratory in Virginia (Certification # 00156) and Maryland (Certification # 319). The Microbiology Laboratory is a member of the CDC ELITE program and is a Sentinel Laboratory certified by the Commonwealth of Virginia, Department of Laboratory Services.
Our services also include the analysis of bacteria and fungi in air, water, wipe/swab, and bulk environmental samples. Refer to the tables below for a detailed list of testing services. If you have any questions about our services, pricing or need sample bottles please order online or contact our office at (703) 471-4200.
Click the logo above to upload a copy of our Accreditation or Member Certificate.
|ISO 11731:2017||Water||Culture (CFU/mL)||7 - 10 days|
|Direct Fluorescence Antibody (DFA)||Water||Direct Microscopy (P/A)||2 days|
|L. pnuemophila (ONLY)||Water||Legiolert (MPN/mL)||7 days|
|New York State Protocol||Water||ISO 11731 (CFU/mL)||7 - 10 days|
|Acid Producing Bacteria||Water||BART (HACH)||10 days|
|Denitrifying Bacteria||Water||BART (HACH)||10 days|
|Enterococcus||Water||Direct Substrate Technology (P/A)||2 days|
|Environmental Mycobacterium||Water, Wipe, Bulk, Air||Culture||2 - 6 weeks|
|Iron-Related Bacteria||Water||BART (HACH)||10 days|
|Nitrifying Bacteria||Water||BART (HACH)||10 days|
|Total Coliforms / E. coli||Water, Wipe||Potability (P/A)||2 days|
|Total Coliforms / E. coli||Water||Potability (MPN/mL)||2 days|
|Total Plate Count (TPC)||Water, Wipe, Bulk, Air||Culture (w/ or w/o IDs)||3 - 5 days|
|TPC (Anaerobic)||Water, Wipe, Bulk, Air||Culture (w/o IDs)||3 - 5 days|
|Pseudomonas aeruginosa||Water||Direct Substrate Technology (P/A)||2 days|
|Slime-Forming Bacteria||Water||BART (HACH)||10 days|
|Direct Microscopy||Bulk, Wipe||Tape-Lift||3 - 5 days|
|Total Fungal Count (TFC)||Water, Wipe, Bulk, Air||Culture (w/ or w/o IDs)||5 - 7 days|
|Total Thermophilic Fungal Count||Water, Wipe, Bulk, Air||Culture||5 - 7 days|
|Total Thermophilic Actinomycete Count||Water, Wipe, Bulk, Air||Culture||5 - 7 days|
|Total Spore Count||Air||Direct Microscopy||3 - 5 days|
|Blue-Green Algae Screen||Water||BART (HACH)||10 days|
|Biolgical Assessment||Water, Wipe, Bulk, Wipe||Culture (Fungi & Bacteria)||5 - 7 days|
|Fungal Profile||Water, Wipe, Bulk, Air||Culture / Direct||5 - 7 days|
Simplified testing for Legionella pneumophila: LegiolertTM
LegiolertTM is a simple and accurate culture test used to detect and quantify Legionella pneumophila, the primary cause of Legionnaires' disease, that provides a confirmed result in 7 days!
"NEW" product developed by IDEXX.
ISO Method 11731:2017(E)
Department of Health & Human Services
Center for Disease Control
Certificate of Proficiency
Department of General Services - Drinking Water Lab
Commonwealth of Virginia
Division of Consolidated
Petrisek, R., & Hall, J. (2018) Evaluation of a most probable number method for the enumeration of Legionella pneumophila from North American potable and nonpotable water samples. J. Water & Health 16(1), 25-33. Weblink
Sartory. D.P., Spies, K., Lange, B., Schneider, S., & Langer., B. (2017) Evaluation of a most probable number method for the enumeration of Legionella pneumophila from potable and related water samples. Letters in Applied Microbiology 64(4), 271-275. Article