Garden State Laboratories Inc

Hillside, NJ · Homeowner samples: yes (lab’s website)

Old list: check before you rely on it

This list is from PA DEP's bulk drinking-water reports printed June 11, 2024 (chemistry and microbiology; the microbiology file is named 06-13-2024). PA DEP's own private-well water-testing page still links these two June 2024 reports (checked Nov 14, 2026); its live lab search did not respond to us on Oct 29 or Nov 14, 2026. Labs may have been added, dropped or changed since then.

At a glance

What it is certified to test
6 of the 9 common well tests on the PA list (see which)
Price
no per-test price printed on the lab’s website when we read it (15 Nov 2026): ask for a quote
Turnaround
“Our standard turn around time for these tests is 10-13 business days include this turn around time when planning for real estate closings.” (lab’s website)
Homeowner samples
yes (lab’s own website, read 15 Nov 2026)

Lab facts

Listed by
Pennsylvania (Pennsylvania DEP - Laboratory Accreditation Program)
Address
410 Hillside Avenue, Hillside, NJ 07205 · Open in Google Maps
Phone
(908) 688-8900
Website
www.gslabs.com
Not on the state list: found and checked by us, 15 Nov 2026
Public / homeowner samples
Homeowner samples: yes (lab’s website)
PA DEP accreditation report has no homeowner-sample flag
Location note
Lab is in NJ, certified by Pennsylvania (often used as a mail-in lab).

Certification record

Certificate ID
PA DEP 68-03680
Issued by
Pennsylvania DEP - Laboratory Accreditation Program (certification program)
List version
PA DEP Accredited Labs Report - Drinking Water (chemistry + microbiology), version STALE - report dated 6/11/2024
We fetched it
29 Oct 2026 (file SHA-256 415f95aac8bd…) · open the state file

Tests on the state list

6 of the 9 well-water tests we track are named for this lab on the Pennsylvania list (version STALE - report dated 6/11/2024).
ContaminantOn this state list
Coliform / E. coliNamed on the official list
NitrateNamed on the official list
ArsenicNamed on the official list
LeadNamed on the official list
PFASNot named on this list
UraniumNot named on this list
Radon (water)Not named on this list
ManganeseNamed on the official list
VOCsNamed on the official list
Other metalsNamed on the official list
Groups as written on the state list (91)
  • 1,1,1,2-Tetrachloroethane
  • 1,1,1-Trichloroethane
  • 1,1,2,2-Tetrachloroethane
  • 1,1,2-Trichloroethane
  • 1,1-Dichloroethane
  • 1,1-Dichloroethene (1,1-Dichloroethylene)
  • 1,1-Dichloropropene
  • 1,2,3-Trichlorobenzene
  • 1,2,4-Trichlorobenzene
  • 1,2,4-Trimethylbenzene
  • 1,2-Dichlorobenzene (o-Dichlorobenzene)
  • 1,2-Dichloroethane
  • 1,2-Dichloropropane
  • 1,3,5-Trimethylbenzene
  • 1,3-Dichlorobenzene (m-Dichlorobenzene)
  • 1,3-Dichloropropane
  • 1,4-Dichlorobenzene (p-Dichlorobenzene)
  • 2,2-Dichloropropane
  • 2-Chlorotoluene
  • 4-Chlorotoluene
  • Alkalinity as CaCO3
  • Aluminum
  • Ammonia as N
  • Arsenic
  • Benzene
  • Bromobenzene
  • Bromochloromethane
  • Bromodichloromethane
  • Bromoform
  • Calcium
  • Carbon tetrachloride
  • Chloride
  • Chlorobenzene
  • Chloroethane
  • Chloroform
  • Chromium
  • Color
  • Conductivity
  • Copper
  • Dibromochloromethane
  • … and 51 more
  • Named on the official list The state list names this analyte (or a column for it) for this lab.
  • Group-level certification Certified for a parent group (e.g. 'Inorganics') that includes this analyte. Confirm the specific test with the lab.
  • Partial group certification The list marks the group as 'Partial'. Confirm this analyte with the lab.
  • Subcontracted The lab sends this analyte to another accredited lab (MDH 'X*').

STALE LIST: PA DEP bulk Accredited Labs Report(s) dated 6/11/2024. The live PA DEP lab search was unreachable on 2026-10-29 (HTTP 500 / TLS error). Confirm current accreditation with PA DEP or the lab.

Homeowner service and turnaround (lab’s own website)

  • Takes homeowner samples: yes. The lab’s site says: “From private individuals looking to test their home water for a real estate transaction or looking to get information on their private well system” source
  • Who collects: Lab staff collect the sample. source
  • Turnaround (as printed): Our standard turn around time for these tests is 10-13 business days include this turn around time when planning for real estate closings. source
  • Prices: no price printed on the lab’s website when we read it on 15 Nov 2026: ask for a quote.

From the lab’s own website, read 15 Nov 2026 and re-read by a second checker; next check due by 13 Feb 2027. Certification fields come from the state list only.

Nearest labs that take homeowner samples

No other lab that takes homeowner samples is within 25 miles of this lab; the nearest is 26 miles away. Distances are straight-line from the address on the state list (approx. = ZIP-code centre). “Takes homeowner samples” comes from a state list column or the lab’s own website, as named.

Lab and tests named on its listTownDistanceTests in common with this labPrice printedTurnaround printedHomeowner samples: source
SGS North America Inc. - Dayton
Nitrate, Arsenic, Lead, PFAS
Dayton, NJ26 mi4––Colorado list
EMSL Analytical, Inc.
not broken down on its list
Carle Place, NY33 mi0––California list
Greenwich Health Department Laboratory
Coliform / E. coli, Nitrate, Arsenic, Lead
Greenwich, CT38 mi4––Connecticut list
Stamford Health Department Laboratory
Coliform / E. coli, Nitrate, Arsenic, Lead
Stamford, CT43 mi4––Connecticut list
Pace Analytical Services, LLC - Melville, NY
Coliform / E. coli, Nitrate, Arsenic, Lead
Melville, NY43 mi (approx.)5––Vermont list

Price and turnaround as printed on each lab’s own website and checked by a second reader; – = not published or not read yet.

Before you send a sample

Call the lab to confirm it's currently certified for the exact test and method, that it accepts samples from homeowners, and how to collect and ship them. Bacteria samples have short holding times. Status can change between list updates. To check a status, contact the Pennsylvania certification program.

Is this your lab?

Labs can ask for corrections through the agency that publishes their state list. Homeowner service, prices and turnaround above come only from the lab’s own website. To ask us to correct or remove this listing, write to us (how we handle listings).

Old list · certified as ofSTALE - report dated 6/11/2024

PA DEP Accredited Labs Report - Drinking Water (chemistry + microbiology). Fetched 2026-10-29 (UTC). File SHA-256 415f95aac8bd…

Open the official source list