Drinking Water Analyses

          California water agencies have relied on Babcock Labs to provide State certified drinking water analyses for more than 85 years. We offer a full range of testing methods in compliance with the Safe Drinking Water Act, CA Title 22, Stage 2 Disinfection Byproducts Rule, Lead & Copper Rule and UCMR regulations.

Bacteriological testing

Bacteriological testing services for the coliform group of bacteria, HPC, iron bacteria, streptococci, and yeast and mold.

Babcock Labs provides testing for the coliform group of bacteria, HPC, iron bacteria, streptococci, and yeast and mold. We offer the 24 hour presence/absence Colilert® test method as well as multiple tube fermentation and membrane filtration techniques. Enumeration of coliforms, including E. coli, is also available for the Colilert® procedure. When requested in advance, speciation can be provided for positive samples.

California Title 22 Drinking Water Requirements

Environmental laboratory testing services for California Title 22 drinking water requirements

In addition to bacteriological monitoring, the most common requirements for drinking water supplies are contained in California Title 22. Our laboratories provide testing and reporting for primary, secondary, and unregulated chemicals. We were one of the first laboratories in California to analyze for Perchlorate, which is routinely included in our inorganic analysis packages and can be determined by IC/MS/MS (EPA Method 332.0), if requested. 

With our extensive drinking water testing expertise we offer:

  • Bacteriological Analyses.
  • Inorganic & Mineral Analyses, such as nitrate, cyanide, and alkalinity.
  • Trace Metal Analysis, such as arsenic, chromium, mercury, copper and lead.
  • Volatile Organic Compounds (VOCs), such as PCE, TCE, and MTBE.
  • Semi-Volatile & Synthetic Organic Compounds (SOC), such as DBCP, Atrazine, Endrin, Benzo(a)Pyrene and Endothall.
  • Radiological Analyses, such as Gross Alpha, Beta and Radon are offered in conjunction with our laboratory partners.

(A complete list of accredited and certified analyses which also includes sample containers, preservatives and holding times can be found on our Qualifications page.)

For a listing of the established maximum contaminant levels, (MCLs) set by the State of California click here. 

Babcock Labs conducts drinking water analyses daily and can provide you with hard copy and electronic reporting to the State of California in a timely and reliable fashion.

Return to top of page.

Stage 2 Disinfection byproducts & Lead and Copper Rule

Additional laboratory services include monitoring for Total Trihalomethanes (TTHMs) and Haloacetic Acids (HAA5) for compliance with maximum residual disinfectant residuals to meet federal requirements. Bromate and Chlorite, along with bromide, chlorate and other inorganic disinfection byproducts and precursor analyses are also available.

To meet the requirements of the Lead and Copper Rule, Babcock Labs' trace metals section provides ICP/MS EPA 200.8 series analysis of distribution system samples.

Return to top of page.

UCMR 4 Analyses

Environmental laboratory testing services for the EPA's Unregulated Contaminant Monitoring Rule, or UCMR4. 

The fourth Unregulated Contaminant Monitoring Rule, or UCMR 4, is the latest version of the EPA's monitoring rule concerning public water systems. 

Public water systems (PWSs) serving more than 10,000 customers, as well as a select list of 800 small PWSs serving between 25 – 10,000 people, are required to participate in the UCMR 4 program. 

The EPA requires PWSs to use UCMR 4 approved laboratories. Babcock Labs has been approved by the EPA as a UCMR 4 lab, fully certified to perform all UCMR 4 analyses. Since the inception of the UCMR program, Babcock Labs has successfully completed the rigorous process necessary to be approved for water quality testing for each round of the program. Babcock Labs is the the industry’s trusted laboratory for UCMR testing services. 

Learn more about UCMR 4.

Return to top of page. 

Wastewater Analyses

          Babcock Labs provides sampling and testing services to help wastewater clients comply with municipal water discharge permit requirements for Industrial Pretreatment Programs and with National Pollution Discharge and Elimination System (NPDES) permits issued by the California Regional Water Quality Control Board, including Septic Tank Monitoring. Additionally, Babcock Labs' testing services help clients comply with the Surface Water and Ambient Monitoring Program (SWAMP) and data collection for TMDL studies.  

Industrial Pretreatment Program Monitoring

Environmental laboratory testing services for Industrial Pretreatment Programs and National Pollution Discharge and  Elimination System (NPDES) compliance

For Industrial Pretreatment and NPDES compliance, Babcock Labs maintains an extensive list of analytical capabilities. We provide organic and inorganic testing methods mandated in CFR Part 136, including the Priority Pollutant analyte list. Babcock Labs also conducts analysis for both Biochemical Oxygen Demand and Total and Fecal Coliforms. Utilizing our experienced field technicians, Babcock Labs can provide for the proper collection of grab and 24-hour composite samples, including same-day transportation and full sample custody documentation. 


Babcock Labs also provides testing and reporting for the Discharge Monitoring Report-Quality Assurance Program (DMR-QA) to ensure complete adherence to the NPDES.

Return to top of page.


Environmental laboratory testing services for organic and inorganic nitrogen and phosphorus nutrient species, in conjunction with the Surface Water and Ambient Monitoring Program (SWAMP) and TMDL studies

In conjunction with the Surface Water and Ambient Monitoring Program (SWAMP), and the collection of data for TMDL studies, Babcock Labs provides testing for the organic and inorganic nitrogen and phosphorus nutrient species. Various microbiological test methods are also available for the enumeration of fecal coliforms and streptococci. Our laboratory services are utilized in the establishing of proper Total Maximum Daily Load (TMDL) values, and discharge compliance to meet those limits.

Return to top of page.

Wastewater Treatment Plants

Environmental laboratory testing services for wastewater treatment plants, including BOD, TSS, and bacteriological water analyses and on-site field sampling services. 

Babcock Labs has extensive experience serving wastewater treatment plants. Commonly requested testing services include biochemical oxygen demand (BOD), total suspended solids (TSS), and bacteriological water analyses. Additionally, our friendly and knowledgeable field technicians are available for on-site sampling services.

Learn more about our field sampling services.    

Return to top of page.

Groundwater Analyses

Babcock Labs testing services for groundwater, landfill monitoring, remediation, and soil projects include a wide variety of volatile, semi-volatile, mineral, and inorganic chemical analyses, as well as complete trace metal determinations. These analyses are detailed in the EPA Solid Waste Assessment Manual (SW-846) for site assessment, monitoring, and remediation projects. Babcock Labs also provides monitoring for today's high profile contaminants of concern, including pesticides, PCBs, 1,4-Dioxane, NDMA, and PFAS.

Landfill & waste site monitoring

Environmental laboratory testing services for landfill and groundwater monitoring projects

Babcock Labs has been involved with a large number of landfill and other groundwater monitoring projects throughout Southern California and the state. We provide a wide variety of volatile and semi-volatile analyses, mineral and inorganic chemical analyses, and complete trace metal determinations under the EPA Solid Waste Assessment Manual Methods (SW-846) required for site assessment, monitoring, and remediation projects.

Site Assessment, Monitoring, & Remediation

Environmental laboratory testing and sampling services for groundwater, including Superfund Site Monitoring, NAPL and DNAPL Contaminated Sites, and Groundwater Recharge Programs

In the areas of groundwater testing, Babcock Labs' analytical and on-site services support:

  • Superfund Site Monitoring
  • NAPL and DNAPL Contaminated Sites
  • Groundwater Recharge Programs/RIX
  • Vadose Zone Monitoring
  • Lysimeter Sampling
  • Passive Sample Collection & Monitoring

Our clients include many state and local waste management agencies, correctional facilities, and cities as well as industrial manufacturers. To obtain a current list of projects, or to find out more about our field and laboratory services in support of groundwater remediation, please contact our offices.

Return to top of page.

Stormwater Analyses

Babcock Labs has provided for the collection and testing of stormwater samples since the inception of the stormwater runoff program. Our laboratory and its partners provide complete analytical services for the NPDES programs administered by the State Water Resources Quality Control Board for industrial stormwater, construction activities, municipalities, and Caltrans.

Industrial Stormwater

Environmental laboratory testing services for Industrial General Permit (IGP) stormwater requirements

Under the new Industrial General Permit (IGP) issued by the California Regional Water Quality Control Board, the permit holder is required to collect and analyze storm water samples from each discharge location for two Qualified Stormwater Events (QSEs) within the first half of each reporting year (July 1 to December 31), and two QSEs within the second half of each reporting year (January 1st to June 30th). As detailed in each IGP holder’s Storm Water Pollution Prevention Plan (SWPPP), the tests required for all facilities include:

  • Total Suspended Solids (TSS)
  • pH (in the field)
  • Oil & Grease

Additional tests are determined by the category of the industry (SIC) and the contaminants most likely to be found in runoff from the location. All Dischargers are required to submit and certify all reports electronically via the Storm Water Multiple Application and Report Tracking System (SMARTS). 

We can provide stormwater sampling kits and recommend orders be placed in advance. To order a sampling kit, please send your list of analytes to our Director of Client Services, Cathy Iijima, or your Project Manager.


Environmental laboratory testing services to meet the requirements of the Construction Storm Water Program

Dischargers whose projects disturb one or more acres of soil or whose projects disturb less than one acre but are part of a larger common plan of development that in total disturbs one or more acres, are required to obtain coverage under the General Permit for Discharges of Storm Water Associated with Construction Activity (Construction General Permit Order 2009-0009-DWQ). Construction activity subject to this permit includes clearing, grading and disturbances to the ground such as stockpiling, or excavation, but does not include regular maintenance activities performed to restore the original line, grade, or capacity of the facility.

Babcock Labs offers laboratory testing to meet the requirements of the Construction Storm Water Program.  Please contact your Project Manager for more details.

Return to top of page.

Municipalities & Caltrans

Environmental laboratory testing services for regional stormwater program compliance

Our laboratory also works with many cities, counties, and the transportation department to meet the monitoring needs of their respective stormwater programs. We provide compositing and maintenance of automated sampler equipment in conjunction with the analytical reporting required.

For additional stormwater information from the California Regional Water Quality Control Board, visit their website. You may also contact the local Regional Water Quality Control Board Office in Riverside, California (Region 8) at 951-782-4130.

Return to top of page. 

Hazardous Waste & Soils Analyses

Babcock Labs provides for the analysis of solid waste, oils, sludges, and hazardous materials. Tests performed include waste characterizations, such as pH, flash point, cyanide, and sulfide bearing wastes. 

Hazardous Waste

Environmental laboratory testing services for inorganic and organic determinations for hazardous waste

A wide variety of inorganic and organic determinations are also available following SW-846 methods, in addition to:

  • Toxicity Characteristic Leachate Procedure (TCLP)/ZHE
  • CA Waste Extraction Test (WET)
  • Corrosivity
  • Reactivity
  • Ignitability

Total & Extractable Contaminants

  • Hexavalent Chromium in cement products and materials
  • Lead in paint and filters
  • Mercury in materials and exhaust

Return to top of page.

Soils & UST/LUFT

Environmental laboratory testing services for soils, including UST/LUFT

In support of the construction industry, Babcock Labs tests soils for saturated resistivity, redox potential, sulfide, sulfate, chloride, and other minerals of concern.

Our laboratory also specializes in the analysis of soils for environmental needs, including the analyses performed after the removal of underground fuel storage tanks. Specific analytical capabilities in this category include Hydrocarbons (total volatile and semi-volatile), benzene, toluene, xylenes, & ethylbenzene (BTEX), methyl tert butyl ether (MTBE), Gasoline Range Organics and Diesel Range Organics. Fuel Tank packages are also available.

Return to top of page.

Field Services

Our in-house field department is trained to handle all sampling situations. Field services range from the same day pick-up of samples, to the installation of flow and composite monitoring equipment, to purging and sampling of groundwater monitoring wells. Commonly requested services include grab and 24-hour composite sampling, potable water collection, groundwater monitoring, and on-site testing.

Superior Service

An in-house field team means that Babcock Labs saves its clients time and money by avoiding the uncertainty of using a third party and eliminating the need for clients to have a trained sampling technician on staff.

Grab & 24-hour Composite Sampling

Analytical testing laboratory with experienced and knowledgable field technicians who provide convenient, on-site sampling services and sample pick-up

For Industrial Pretreatment and NPDES compliance, our field technicians have extensive experience in the proper collection of wastewater grab and 24-hour composite samples utilizing the most up-to-date collection equipment and techniques. (Note: Composite sampling is required for most NPDES permit work).

Return to top of page.

Potable Water Collection

Our field staff are equipped and well versed in the collection of well water and distribution system samples to meet Safe Drinking Water Act and California Title 22 requirements. Services include the sampling of new residential and industrial lines during construction as well as the collection of routine bacteriological (Total Coliform, E. coli, and Heterotrophic Plate Count) and nitrate samples from public and private distribution systems. Complete organic, inorganic, and radiological sample collection of sources is also available.

Return to top of page.

Groundwater Monitoring

Commonly requested field services include grab and 24-hour composite sampling, potable water collection, groundwater monitoring, and on-site testing

Babcock Labs field staff have experience with a number of groundwater remediation projects and can provide the appropriate field support for many locations. If you have a groundwater monitoring project and need an evaluation or quotation, give us a call.

Return to top of page.


On-Site Testing

In addition to the proper collection and transportation of samples, on-site testing is available for PH, electrical conductivity, temperature, and chlorine residual, as well as environmental swab sampling. Field filtration and preservation are also provided.

Return to top of page.

Data Deliverables

Electronic& Customized Formats

Analytical testing laboratory with custom electronic data deliverable (EDD) reporting services

We provide data deliverables to clients in a variety of formats. Our system enables us to provide customized formats based on client need. Our electronic deliverable capabilities provide our clients with: 

  • Customized reports to meet client-specific requirements
  • Improved efficiency with streamlined data management
  • On-line access to reports, EDDs, and invoices for up to one year of data
  • Backup to hardcopy reports
  • Data Deliverables available in many formats including:
    • Adobe Portable Data Files
    • Excel
    • Access
    • ADaPT
    • Many others not listed!

For more information about data deliverables, including electronic data deliverables, please contact your Project Manager or one of our Business Development Associates.

Emergency Response Services

Analytical testing laboratory with emergency response services, such as on-call field sampling and staff support, after-hours customer support, and rapid turnaround time

In the event of an emergency where laboratory or sampling support is needed, Babcock Laboratories is prepared to help. We understand that crises don't always happen during business hours, which is why our team is able to respond to emergencies 24 hours a day, 7 days a week. Should an emergency arise, our staff will coordinate with the appropriate personnel to mobilize a response and meet your sampling and service needs. Babcock Laboratories has an excellent track record of providing clients with emergency response services, including:

  • On-call field sampling and staff support
  • Project scalability and customization
  • Adaptability to developing requirements
  • After-hours customer support
  • Rapid turnaround time
  • Electronic data deliverables (EDDs) 
  • Real-time access to data online

Do you require emergency response services? Contact our team: 

Caroline Sangari, Client Services Manager: 951-653-3351

We're Always Prepared

Babcock Laboratories maintains an emergency generator which, in the event of a power interruption, automatically switches on to ensure an uninterrupted power supply to our facilities housing the Microbiology Department and the Laboratory Information Management System servers. The integrity and validity of any bacteriological samples in progress is ensured, along with the ability to perform testing in a state of emergency where electrical power is disrupted. This and other measures allow us to continue services in the event of an emergency or natural disaster.

Questions? Please contact us for more information.

Special Project Accommodation

Analytical testing laboratory that provides special project accommodation 

At Babcock Laboratories we understand that your samples and projects don’t fit neatly into the network laboratory mass-production line. Your samples are unique. Our chemists and microbiologists take professional pride in knowing the systems and companies we serve on a personal level and in helping clients to resolve their technical challenges. We accommodate special projects by offering greater analytical sensitivity, customized analytical testing, and much more!

Greater Analytical Sensitivity

Our laboratory offers greater analytical sensitivity

When clients experience regulatory requirements demanding greater analytical sensitivity, they trust Babcock Labs to meet their needs. Our chemists use their experience and understanding of methods and instrumentation to find appropriate techniques while ensuring proper method validation, reporting limit reproducibility, and quality control. We were the first lab in the country to utilize LC/MS/MS for the robust, reproducible measurement of Pyrethroid pesticides. Using a technique superior to traditional GC/MS we are able to analyze for all eight of the critical Pyrethrins to a reporting limit of one part per trillion (PPT), thus providing local agencies with defensible data to meet their stormwater monitoring permit requirements.

Return to top of page.

Customized Analytical Testing

Our laboratory offers customized analytical testing services

Water quality managers turn to us to help them solve problems in their systems. From tracking down sources and identifying mystery pathogens to investigating the safety of well packing materials, we provide technical expertise and testing solutions. In fact, Babcock Labs recently helped a City allay concerns by generating a complete profile of potential organic contaminants. Through customized analytical testing we helped ensure a non-routine well packing material posed no threat to the water supply.

Return to top of page.

When you need a partner to assist with challenging matrices and forensic chemistry, Babcock Labs is here to help! Contact us today.

Return to top of page.