Skyline Service Center
Ringwood Borough, Passaic County
In August 2003, three gasoline tanks and associated piping were removed
from the Skyline Service Center as a result of a tank closure and replacement.
A sheen was noted on the water in the excavation. This water is believed
to be perched water as the tank field was installed by blasting into bedrock.
A postexcavation soil sample at the pump island exceeded the applicable
criteria for benzene, xylenes and Methyl tertiary Butyl Ether (MTBE).
A post excavation soil sample from the gasoline excavation exceeded said
criteria for MTBE and total petroleum hydrocarbons (TPHC). Approximately
429 tons of soil was excavated.
In early February 2004 NJDEP received the Remedial Investigation report
for the work performed the previous summer. At that point a case manager
was assigned. On March 5, 2004 a letter was issued to the station owner
requiring him to conduct a ground water investigation at the site, canvass
the area to locate all permitted and unpermitted wells within 1,000 feet
of the site, and sample those wells nearest the station. On or about March
15, the Ringwood Health Department mailed a notice to the residents with
potable wells within 1,000 feet that this site had a discharge, was required
to do a well search and asked that they participate in any well sampling.
NJDEP required the initial sampling of 23 of the nearby potable wells;
sampling commenced June 1, 2004. The preliminary results from that round
indicated that one home had levels of MTBE and tertiary butyl alcohol
(TBA) exceeding the Ground Water Quality Criteria. A directive was issued
requiring provision of bottled water and a treatment system at the home
within 72 hours. Both activities have taken place. The remaining wells
had no contamination exceeding the applicable criteria, although some
wells contained detectable levels of volatile organic compounds. The complete
data packages for ten of the samples have been received by NJDEP and have
undergone a quality control check.
Letters describing the sampling results were mailed to the owners of
those ten homes.
Due to the elevated contaminant levels in the one home, NJDEP required
that additional wells be sampled in that immediate area. Four homes were
sampled from June 21 through 24. Preliminary results received on July
8 indicated that two of the homes had MTBE and/or TBA above applicable
criteria. A directive requiring provision of bottled water and treatment
systems was issued July 9. Treatment systems were installed in those two
homes on July 9.
During a recent private well sampling event NJDEP audited the contractor
performing the sampling. This audit confirmed that the contractor was
following the correct sampling methodologies and procedures.
To aid in characterization of the ground water at the site, four monitoring
wells were installed on the station property on July 6. Regulations require
these wells stabilize for 14 days before they are sampled.
Additional private well sampling is continuing. The sampling will include
wells within 1000' of those wells that have shown elevated contaminant
Sampling of the four new monitoring wells is planned for the week of
July 21. Analytical results would be expected approximately 2-3 weeks
after sampling. Results of the monitoring well sampling will be placed
in a repository at Borough Hall along with copies of other site-related
An inspection will be conducted at the station to ensure that the current
operations are in compliance with state regulations.
December 9, 2004
Private Well Sampling
Preferred Tank Services (PTS) sampled 73 residential wells in June-
August 2004 and 70 wells in October- November. (Anyone who has not received
preliminary results from those tests should contact Mark Herzberg at (609)
633-1369). Five wells had Methyl Tertiary Butyl Ether (MTBE) and/or Tertiary
Butyl Alcohol (TBA) above drinking water standards. Four of those homes
had treatment systems installed. The fifth well that exceeded standards
is an irrigation well; no treatment was installed. The potable wells in
the project area are expected to be sampled again in late January. Sampling
will be conducted by NJDEP.
Point of Entry Treatment (POET) Systems
PTS installed treatment systems at the four homes with MTBE and/or TBA
above drinking water standards. The most recent preliminary results (for
samples taken during the first week of October) indicated that the treated
water in the four homes met drinking water standards. The raw and treated
water in these homes was sampled again earlier today. Results are expected
in four weeks; preliminary results may be available sooner. Monitoring
and maintenance of the POETs will be handled by NJDEP.
The NJ Department of Environmental Protection (NJDEP) mapped all of
the potable well test results to determine the extent of volatile organic
contamination in the wells. Using the area of currently known contamination
and the ground water flow direction, NJDEP delineated the Project Area
shown in Attachment A. This area encompasses 81 lots of which 69 are developed
and using wells as a potable supply. A list of the Blocks and lots is
NJDEP conducted a water supply alternative analysis in which long term
water supply alternatives were evaluated for developed properties in the
Project Area. The three alternatives evaluated are as follows:
- Installation of Deeper Wells
- Long Term Use of POET Systems
- Connection to Public Water System
Three alternative water supplies were evaluated to determine their feasibility,
reliability and cost. The alternatives considered were the installation
of deeper wells, the long-term use of POETs and the connection to a public
water system. The installation of deeper wells was not considered to be
a feasible alternative due to the likelihood of future recontamination
of the wells. Both the use of POETs and the connection to public water
were considered to be feasible alternatives. The chart below summarizes
the alternatives which were reviewed for the Project Area.
||COST (Net Present Worth)
| 1. DEEPER WELLS
|3. PUBLIC WATER
Based on the potable well data and the assumptions made in NJDEP’s
Alternative Water Supply Analysis Report, the most reliable and cost effective
water supply alternative for the Project Area would be Alternative #3,
the connection to the public water supply system. The cost of this alternative
estimated to be $1,228,362. The Analysis Report will be available at the
Borough Hall or a copy can be mailed upon request. Comments can be directed
to NJDEP at the address below.
Four monitor wells were installed on the Skyline Service Center property
on July 6, 2004. The wells were sampled on July 26, 2004. Results included
(all results in ppb):
A seep near 16 Wildwood Terrace was sampled in August 2004. No MTBE or
TBA was detected. The only volatile organic contaminant detected in the
seep was 1.7 ppb of Toluene. The seep was sampled again on November 17;
preliminary results indicated that there was no volatile organic compounds
present. High Mountain Brook was sampled at four locations in early September
2004. The preliminary results indicated that no volatile organic compounds
were detected in the four samples.
A Standard Compliance Inspection of the Skyline Service Center was conducted
on July 15, 2004. This included an examination of the three in-service
underground storage tanks. An administrative violation related to the
registration of the tanks was corrected in the field that day. The inspection
also identified readings of organic vapors between the primary and secondary
walls of the tanks. A vacuum test was required to insure that the system
was sound. Since the field screening equipment does not discriminate between
gasoline vapors and any organic vapors that may come from the resins used
to manufacture the fiberglass tanks, the vacuum test is the best way to
insure the system is tight. The vacuum test was completed on July 16 and
the tanks were found to be tight.
NJDEP will be handling the remedial investigation of the Skyline Service
Center site. The need for additional monitoring wells and other environmental
sampling will be evaluated as part of this investigation.
Need More Information?
Community Relations Coordinator
Ringwood Borough Health Officer
NJDEP Reports available at:
Ringwood Municipal Building
60 Margaret King Avenue
The report “MTBE in New Jersey’s
Environment” may also be viewed at