Delaware Health and Social Services

 


















Public Drinking Water
Annual Compliance Report
And Summary

2000





Table of Contents


Section
Page #




Section 1

	EPA Annual Compliance Report
1




Section 2

	2000 State Summary
14




Section 3

	List of Systems in Violation and Conclusion
21



















The Office of Drinking Water Program:  An Overview

In 1974 Congress adopted the Safe Drinking Water Act (SDWA).  The United States 
Environmental Protection Agency (EPA) established the Public Water System 
Supervision (PWSS) Program under the authority of the SDWA to regulate the drinking 
water provided by public water systems.  Under the SDWA and the 1986 Amendments, 
EPA set national limits on contaminant levels in drinking water to ensure that the water is 
safe for human consumption.  These limits are known as Maximum Contaminant Levels 
or MCLs.  The State of Delaware has adopted these limits for use in State Regulations 
governing drinking water.

The SDWA allows States to seek EPA approval to administer their own PWSS programs.  
The authority to run a PWSS program is called primacy.  The State of Delaware was 
granted primacy in 1978.  In order for Delaware to receive primacy, it had to meet certain 
requirements laid out in the SDWA, including the adoption of drinking water regulations 
that are at least as stringent as the Federal Regulations and a demonstration that it could 
enforce the program requirements.

The SDWA, EPA regulations and State regulations require that all public water systems 
(PWSs) monitor the drinking water for contaminants.  Generally the larger the population 
served by the water system, the more frequent the monitoring must occur.  In addition, if 
a PWS violates an MCL, or fails to conduct monitoring the system must notify the public 
of the violation.  This is known as public notification.  Due to the small size of Delaware, 
the Division of Public Health, Office of Drinking Water (ODW) has traditionally 
conducted almost all the monitoring for PWSs in Delaware.  A few of the larger water 
systems conduct their own monitoring and report the results to ODW.  All of the 
Community water systems (cities, towns, mobile home parks, etc.) and the Non-
Transient, Non-Community water systems (schools, day cares, factories, etc.) are 
required to collect samples for compliance with the Lead and Copper Rule.  These 
samples are to be analyzed by a certified laboratory and the results submitted to ODW.  
Transient, Non-Community water systems (restaurants, parks, rest stops, etc.) are not 
required to conduct Lead and Copper Rule monitoring.

In 1996 the SDWA was amended once more with several changes.  One of these changes 
was the requirement for ODW to prepare an annual compliance report as stated in the 
SDWA, Section 1414(c)(3)(A)(i) and distribute the report as specified in Section 
1414(c)(3)(A)(ii).  The purpose of this report is to provide a total annual representation of 
the number of violations in each of the following categories:  MCLs, treatment 
techniques, variances and exemptions, and significant monitoring violations.

This annual report covers the time period of January 1 - December 31, 2000.  It is broken 
down into five parts:  the introduction, a table listing of the number of violations, a 
general fact sheet on drinking water for the State of Delaware, a listing of the PWSs


which were in violation (included dates and types of contaminants), and a conclusion.

Information on Delaware's public water systems may be found on the internet in EPA's 
Envirofacts web page at the following address: 

www.epa.gov/enviro/html/sdwis/sdwis_query.html

Please note that the data stored here may be  slightly different than the data on this 
Annual report.  This is due to errors, which the Office of Drinking Water is in the process 
of correcting.


State:
Delaware





Reporting Interval:
Jan-Dec 2000














MCL
(mg/l) 
MCLs
Treatment Techniques
Significant 
Monitoring/Reporting


Number 
of  
Violations
Number 
of 
Systems 
With 
Violations
Number of  
Violations
Number of 
Systems 
With 
Violations
Number of  
Violations
Number of 
Systems 
With 
Violations
Organic Contaminants







1,1,1-Trichloroethane
0.2
N/A
N/A


N/A
N/A
1,1,2-Trichloroethane
.005
N/A
N/A


N/A
N/A
1,1-Dichloroethylene
0.007
N/A
N/A


N/A
N/A
1,2,4-Trichlorobenzene
.07
N/A
N/A


N/A
N/A
1,2-Dibromo-3-
chloropropane (DBCP)
0.0002
N/A
N/A


N/A
N/A
1,2-Dichloroethane
0.005
N/A
N/A


N/A
N/A
1,2-Dichloropropane
0.005
N/A
N/A


N/A
N/A
2,3,7,8-TCDD (Dioxin)
      3x10-8
N/A
N/A


N/A
N/A
2,4,5-TP
0.05
N/A
N/A


N/A
N/A
2,4-D
0.07
N/A
N/A


N/A
N/A
Acrylamide



N/A
N/A


Alachlor
0.002
N/A
N/A


N/A
N/A
Atrazine
0.003
N/A
N/A


N/A
N/A
Benzene
0.005
N/A
N/A


N/A
N/A
Benzo[a]pyrene
0.0002
N/A
N/A


N/A
N/A
Carbofuran
0.04
N/A
N/A


N/A
N/A








Carbon tetrachloride
0.005
N/A
N/A


N/A
N/A
Chlordane
0.002
N/A
N/A


N/A
N/A
cis-1,2-
Dichloroethylene
0.07
N/A
N/A


N/A
N/A
Dalapon
0.2
N/A
N/A


N/A
N/A
Di(2-ethylhexyl)adipate
0.4
N/A
N/A


N/A
N/A
Di(2-ethylhexyl)phthalate
0.006
N/A
N/A


N/A
N/A
Dichloromethane
0.005
N/A
N/A


N/A
N/A
Dinoseb
0.007
N/A
N/A


N/A
N/A
Diquat
0.02
N/A
N/A


N/A
N/A
Endothall
0.1
N/A
N/A


N/A
N/A
Endrin
0.002
N/A
N/A


N/A
N/A
Epichlorohydrin



N/A
N/A


Ethylbenzene
0.7
N/A
N/A


N/A
N/A
Ethylene dibromide
0.00005
N/A
N/A


N/A
N/A
Glyphosate
0.7
N/A
N/A


N/A
N/A
Heptachlor
0.0004
N/A
N/A


N/A
N/A
Heptachlor epoxide
0.0002
N/A
N/A


N/A
N/A
















Hexachlorobenzene
0.001
N/A
N/A


N/A
N/A
Hexachlorocyclopentadiene
0.05
N/A
N/A


N/A
N/A
Lindane
0.0002
2
1


N/A
N/A
Methoxychlor
0.04
N/A
N/A


N/A
N/A
Monochlorobenzene
0.1
N/A
N/A


N/A
N/A
o-Dichlorobenzene
0.6
N/A
N/A


N/A
N/A
Oxamyl (Vydate)
0.2
N/A
N/A


N/A
N/A
para-Dichlorobenzene
0.075
N/A
N/A


N/A
N/A
Pentachlorophenol
0.001
N/A
N/A


N/A
N/A
Picloram
0.5
N/A
N/A


N/A
N/A
Simazine
0.004
N/A
N/A


N/A
N/A
Styrene
0.1
N/A
N/A


N/A
N/A
Tetrachloroethylene
0.005
N/A
N/A


N/A
N/A
Toluene
1
N/A
N/A


N/A
N/A
Total polychlorinated 
biphenyls
0.0005
N/A
N/A


N/A
N/A
Toxaphene
0.003
N/A
N/A


N/A
N/A
trans-1,2-Dichloroethylene
0.1
N/A
N/A


N/A
N/A
















Trichloroethylene
0.005
N/A
N/A


N/A
N/A
Vinyl chloride
0.002
N/A
N/A


N/A
N/A
Xylenes (total)
10
N/A
N/A


N/A
N/A
















Total trihalomethanes
0.10
N/A
N/A


N/A
N/A








Subtotal

2
1


N/A
N/A








































































































Inorganic 
Contaminants







Antimony
0.006
N/A
N/A


N/A
N/A
Arsenic
0.05
N/A
N/A


N/A
N/A
Asbestos
7 million 
fibers/l
? 10 ?m 
long
N/A
N/A


N/A
N/A
Barium
2
N/A
N/A


N/A
N/A
Beryllium  
0.004
N/A
N/A


N/A
N/A
Cadmium
0.005
N/A
N/A


N/A
N/A
Chromium
0.1
N/A
N/A


N/A
N/A
Cyanide (as free 
cyanide)
0.2
N/A
N/A


N/A
N/A
Fluoride
4.0
N/A
N/A


N/A
N/A
Mercury
0.002
N/A
N/A


N/A
N/A
Nitrate
10 (as 
Nitrogen)
      15
10


N/A
N/A
Nitrite
1 (as 
Nitrogen)
N/A
N/A


N/A
N/A
















Selenium
0.05
N/A
N/A


N/A
N/A
Thallium
0.002
N/A
N/A


N/A
N/A
Total nitrate and nitrite
10 (as 
Nitrogen)
N/A
N/A


N/A
N/A








Subtotal

15
10
N/A
N/A
N/A
N/A
























































































































Radionuclide MCLs







Gross alpha
15 pCi/l
N/A
N/A


N/A
N/A
Radium-226 and 
radium-228
5 pCi/l
N/A
N/A


N/A
N/A
Gross beta
4 
mrem/yr
N/A
N/A


N/A
N/A








Subtotal

N/A
N/A


N/A
N/A








































































































Total Coliform Rule







Acute MCL violation
Presence
1
1




Non-acute MCL 
violation
Presence
37
34




Major routine and 
follow up monitoring







Sanitary survey 





N/A
N/A








Subtotal

38
35


N/A
N/A
















































































Surface Water 
Treatment Rule







Filtered systems







Monitoring, 
routine/repeat





N/A
N/A
Treatment techniques



N/A
N/A


Unfiltered systems







Monitoring, 
routine/repeat





N/A
N/A
Failure to filter



N/A
N/A










Subtotal



N/A
N/A
N/A
N/A








































































Lead and Copper Rule







Initial lead and copper 
tap M/R





8
8
Follow-up or routine 
lead and copper tap 
M/R





N/A
N/A
Treatment installation 



N/A
N/A


Public education



N/A
N/A










Subtotal



N/A
N/A
8
8











Definitions for Summary of Violations Table


The following definitions apply to the Summary of Violations table.

Filtered Systems:  Water systems that have installed filtration treatment [40 CFR 141, Subpart H]. 

Inorganic Contaminants: Non-carbon-based compounds such as metals, nitrates, and asbestos.  These contaminants are naturally-occurring in some 
water, but can get into water through farming, chemical manufacturing, and other human activities. EPA has established MCLs for 15 inorganic 
contaminants [40 CFR 141.62].

Lead and Copper Rule:  This rule established national limits on lead and copper in drinking water [40 CFR 141.80-91].  Lead and copper corrosion 
pose various health risks when ingested at any level, and can enter drinking water from household pipes and plumbing fixtures.  States report violations 
of the Lead and Copper Rule in the following six categories:
 
Initial lead and copper tap M/R:  A violation where a system did not meet initial lead and copper testing requirements, or failed to report the results of 
those tests to the State. 

Follow-up or routine lead and copper tap M/R:  A violation where a system did not meet follow-up or routine lead and copper tap testing requirements, 
or failed to report the results.

Treatment installation: Violations for a failure to install optimal corrosion control treatment system or source water treatment system which would 
reduce lead and copper levels in water at the tap. [One number is to be reported for the sum of violations in both categories].
 
Lead service line replacement:  A violation for a system's failure to replace lead service lines on the schedule required by the regulation.

Public education:  A violation where a system did not  provide required public education about reducing or avoiding lead intake from water.

Maximum Contaminant Level (MCL):  The highest amount of a contaminant that EPA allows in drinking water.  MCLs ensure that drinking water 
does not pose either a short-term or long-term health risk.  MCLs are defined in milligrams per liter (parts per million) unless otherwise specified.

Monitoring:  EPA specifies which water testing methods the water systems must use, and sets schedules for the frequency of testing.  A water system 
that does not follow EPA's schedule or methodology is in violation [40 CFR 141].

States must report monitoring violations that are significant as determined by the EPA Administrator and in consultation with the States.  For purposes 
of this report,  significant monitoring violations are major violations and they occur when no samples are taken or no results are reported during a 
compliance period.  A major monitoring violation for the surface water treatment rule occurs when at least 90% of the required samples are not taken 
or results are not reported during the compliance period.

Organic Contaminants: Carbon-based compounds, such as industrial solvents and pesticides.  These contaminants generally get into water through 
runoff from cropland or discharge from factories.  EPA has set legal limits on 54 organic contaminants that are to be reported [40 CFR 141.61].

Radionuclides: Radioactive particles which can occur naturally in water or result from human activity.  EPA has set legal limits on four types of 
radionuclides:  radium-226, radium-228, gross alpha, and beta particle/photon radioactivity [40 CFR 141].  Violations for these contaminants are to be 
reported using the following three categories:

Gross alpha: A violation for alpha radiation above MCL of 15 picocuries/liter.  Gross alpha includes radium-226 but excludes radon and uranium.

Combined radium-226 and radium-228:  A violation for combined radiation from these two isotopes above MCL of 5 pCi/L.

Gross beta:  A violation for beta particle and photon radioactivity from man-made radionuclides above 4 millirem/year.

Reporting Interval:  The reporting interval for violations to be included in this PWS Annual Compliance Report, which is to be submitted to EPA by 
July 1, 2001, is from January 1, 2000 through December 31, 2000.

Surface Water Treatment Rule:  The Surface Water Treatment Rule establishes criteria under which water systems supplied by surface water 
sources, or ground water sources under the direct influence of surface water, must filter and disinfect their water [40 CFR 141, Subpart H]. Violations 
of the "Surface Water Treatment Rule" are to be reported for the following four categories:

Monitoring, routine/repeat (for filtered systems):  A violation for a system's failure to carry out required tests, or to report the results of those tests.

Treatment techniques (for filtered systems):  A violation for a system's failure to properly treat its water.

Monitoring, routine/repeat (for unfiltered systems):  A violation for a system's failure to carry out required water tests, or to report the results of those 
tests.

Failure to filter (for unfiltered systems):  A violation for a system's failure to properly treat its water. Data for this violation code will be supplied to the 
States by EPA.

Total Coliform Rule (TCR):  The Total Coliform Rule establishes regulations for microbiological contaminants in drinking water.  These 
contaminants can cause short-term health problems.  If no samples are collected during the one month compliance period, a significant monitoring 
violation occurs.  States are to report four categories of violations:

Acute MCL violation: A violation where the system found fecal coliform or E. coli, potentially harmful bacteria, in its water, thereby violating the rule.
Non-acute MCL violation:  A violation where the system found total coliform in samples of its water at a frequency or at a level that violates the rule.  
For systems collecting fewer than 40 samples per month, more than one positive sample for total coliform is a violation.  For systems collecting 40 or 
more samples per month, more than 5% of the samples positive for total coliform is a violation.
 
Major routine and follow-up monitoring:  A violation where a system did not perform any monitoring.  [One number is to be reported for the sum of 
violations in these two categories.]

Sanitary Survey: A major monitoring violation if a system fails to collect 5 routine monthly samples if sanitary survey is not performed.


Treatment Techniques: A water disinfection process that EPA requires instead of an MCL for contaminants that laboratories cannot adequately 
measure.  Failure to meet other operational and system requirements under the Surface Water Treatment and the Lead and Copper Rules have also been 
included in this category of violation for purposes of this report. 

Unfiltered Systems: Water systems that do not need to filter their water before disinfecting it because the source is very clean [40 CFR, Subpart H].

Violation: A failure to meet any state or federal drinking water regulation.



Public Drinking Water Summary  - Delaware 2000

The quality of drinking water in the State of Delaware is a concern for everyone.  This document is a brief 
overview of the State's public drinking water.  Included is everything from general information to a breakdown 
of the number of violations that occurred during 2000.  If further information is needed or questions arise 
concerning how these numbers were obtained, please contact the Division of Public Health, Office of Drinking 
Water at (302) 739-5410.

General Information

Total land area of Delaware
1,592,960  acres


Population of Delaware
783,600 
Forest
398,0001 acres
(25%)

Percent served by individual wells
18%
Agriculture
557,550  acres
(35%)

Percent served by public water supplies
82%
Developed
318,6003 acres
(20%)

Primacy Granted to State by EPA
1978
Wetland/Barren
318,6003 acres
(20%)





*   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *

Delaware's Drinking Water
*
Public Water Systems

*


Major Sources of Surface Water
*
Residents served by public water systems
642,552
	Brandywine River Basin
*


	Christina River Basin
*
Residents served by surface water systems
267,107
	Red Clay/White Clay Creeks
*
Residents served by ground water systems
375,445

*


Major Sources of Ground Water
*

Number of public water systems
611
	Columbia Aquifer
*

	Community  systems
247
	Cheswold Aquifer
*

	Non-transient systems
179
	Piney Point Aquifer
*

	Transient systems
185

*


Number of gallons of Public Water Used
*

Number using surface water
	          7
in Delaware each day:	118 mgd 
*

Number using ground water
604


Delaware's Public Drinking Water Program

Many services are provided to the public consumers and the water supply systems.  Funding comes from State 
and Federal monies allotted to the public drinking water program for the State of Delaware.  Two components 
of the Division of Public Health, the Office of Drinking Water and the Division of Public Health Laboratory 
provide the services for the public drinking water program with these allotted monies.

The Office of Drinking Water (ODW) works to ensure that the drinking water in Delaware meets or exceeds the 
requirements of the Safe Drinking Water Act (SDWA).  This is accomplished through the review and approval 
of plans for new or improved water treatment systems and/or new or improve distribution systems.  ODW also 
conducts all the monitoring for 98% of the public water systems (ten systems conduct their own monitoring and 
forward the results to ODW).  ODW staff also inspect water systems, provide technical assistance, respond and 
handle emergencies, review monitoring results to ensure compliance with the SDWA and take enforcement 
actions when necessary.  Additionally, ODW provides some training to water system operators and owners 
regarding system operation and compliance with rules and regulations.

The State Laboratory performs water analyses for water quality parameters as outlined in the SDWA.  The 
Laboratory also provides ODW with sampling supplies in order to ensure that samples are collected in approved 
containers.  Additionally, the Laboratory conducts testing on private well water samples from throughout the 
State.

Operations

Budget Information
Inspections
152

Total Budget
$ 974,712
Plans & Specifications Reviewed
135

Federal Budget
$  511,700
Pre-Approval Review Funding
N/A

State Budget
$  463,012
Infrastructure Investment          
N/A

Number of Staff
19


Training Provided



People Trained


Operator Training
35


Management
0


Lead & Copper
25


Wellhead Protection Training
N/A 








Enforcement Actions

Enforcement actions are taken when a public water system violates a maximum contaminant level (MCL) as 
specified in regulations or fails to conduct proper monitoring and/or reporting (MR) for a particular 
contaminant.  A Notice of Violation (NOV) is the first action taken.  This notifies the owner/operator of a 
public water system that there has been a violation.  The next action taken is the issuance of a Public Notice 
(PN) which the owner/operator is required to hand-deliver or post in a conspicuous place.  This notifies the 
consumers of the water that there was a violation, what the violation was, possible related health effects and 
preventative measures the consumer can take until the violation is corrected.  A Boil Water Notice is issued 
when a water system violates the bacteria standard and the presence of E.coli or fecal coliform is detected.  This 
requires immediate notice to all consumers informing them on how to make their water safe for consumption.

The two remaining enforcement actions, an Administrative Order (AO) and a Bi-Lateral Compliance 
Agreement (BCA) are used when a water system repeatedly violates an MCL or when a history of violations is 
present.  The AO can mandate the installation of continuous chlorination or the abandonment of a well with 
persistent violations, for example.  An AO is time sensitive, usually with 30 days in which the owner/operator 
must submit plans.  A BCA is a written contract between the system and ODW in which the violations are 
outlined and the steps the system is going to take to correct the violation are outlined.  The BCA is also time 
sensitive, but generally more time is granted for the system to correct the violation.  Examples of a BCA include 
the installation of new wells or the re-piping of a water system in order to correct a violation.




Enforcement Actions





Notice of Violations
48 MCL / 0 MR


Public Notices
48 MCL / 0 MR


Administrative Orders
4


Boil Water Orders
1


Bi-Lateral Compliance Agreements
1





Data Management

The Office of Drinking Water uses a d-Base based system to inventory water supplies, record sampling results 
and track compliance with monitoring and MCL requirements.  The database includes information about: water 
supply facilities, water sources, treatment used, and sampling results. MCL compliance for the Phase II and V 
and Lead and Copper data is tracked on a Microsoft® Excel program.

Compliance Highlights


Number of 
Samples 
Collected in 
2000
Systems 
Given 
Waivers in 
2000
Systems In 
Compliance in 
2000
% of State 
Served by 
Compliant 
Systems 
Number of 
Systems not in 
Compliance 
during 2000
Bacteriological
16,552
N/A
576
94.2% (93.8%)
36
Surface Water 
Treat. Rule 
N/A
N/A
4
100%  (100%)
0
Nitrates
1,782
N/A
607
98.4% (97.9%) 
10
Routine Chemicals
2,469
N/A
611
100%  (100%)
0
Inorganics
467
0
611
100% (100%)
0
Volatile Organic 
Chemicals (VOC)
431
0
334 
99.9%  (99.4%)
1
Synthetic Organic 
Chemicals (SOC)
458
0
336
100%  (100%)
0
Lead and Copper7,8
561
1
328
99.6%  (97.6%)
8








EPA Program Goals and Measures


# of Water Systems
Population Served
Required to install corrosion 
control treatment
24
6,071




Violation Resolution



Contaminant Type
Health Level 
Violations Occurring 
In 2000
Violations 
Reconciled By the 
End of 2000

State Investment

People Benefited
Bacteriological
48
35
N/A
26,597
Surface Water 
Treatment Rule
0
N/A
N/A
N/A
Nitrates
10
7
N/A
861
Inorganics
0
N/A
N/A
N/A
Volatile Organic 
Chemicals (VOC)
2
2
N/A
305
Synthetic Organic 
Chemicals (SOC)
0
N/A
N/A
N/A
Lead and Copper
0
N/A
N/A
N/A
System Viability
N/A
N/A
N/A
N/A












The Office of Drinking Water sincerely thanks the Water Quality Division of the Oklahoma Department of 
Environmental Quality for their assistance in the formatting of this document

































Office of Drinking Water
Division of Public Health
Blue Hen Corporate Center
655 Bay Road, Suite 203
Dover, Delaware  19903
(302) 739-5410



List of Systems in Violation

The following list is the names, population served and dates of violations for all the systems which were 
in violation during the calendar year 2000.  This list is broken down into the various types of violations 
and is in alphabetical order for your convenience.

Bacteria Violations



System Name
Population Served
Date Violation Occurred
Aspen Meadows
400-Sum, 150-Win
9/19/00
Bombay Hook National Wildlife Refuge
150
11/8/00
Delaware Adolescent Program Inc.
61
1/19/00
Delaware Adolescent Program Inc.
61
7/21/00
Green Acres Daycare
200
8/2/00
Milford Christian School
55
4/10/00
Milford Christian School
55
6/5/00
Oak Grove Mobile Home Park
91
7/11/00
Oak Grove Mobile Home Park
91
10/4/00
Children's Secret Garden
55
12/8/00
Frederick Lodge & Mobile Home Park
189
9/8/00
Delaware Correctional Center
1800
8/3/00
The Market Place at Odessa
50
11/23/00
Bethany Club Tennis, Inc.
100
8/13/00
Thomas Horseshoe Development
42
10/03/00
Summit Aviation, Inc.
65
7/20/00
Fairways Inn
150
8/19/00
Sambos Tavern
200
9/19/00
Harrington Moose Lodge #534
60
11/8/00
Whispering Pines
885
10/25/00
Fisherman's Village
60
10/27/00
Brandywine Creek State Park
700
11/8/00
University of Delaware Research & Edu.
50
7/31/00
Woodside Edge Mobile Home Park
69
9/5/00
Dover Water Department
27500
12/8/00
Mason Dixon Trailer Park
75
10/10/00
Twin Maples Trailer Park
138
1/1/00
Laurel Water Department
3500
3/7/00
Pine Valley Mobile Home Court
186
10/4/00
Milford Christian School
275
4/7/00
Milford Christian School
275
6/12/00
Woodside Inn
50
5/14/00


Bacteria Violations (continued)




System Name
Population Served
Date Violation Occurred
Greenville Country Club
200
8/2/00
Frederick's Country Center
30
8/12/00
Webb Acres Mini Market
100
6/10/00
Tuckahoe Acres Camp System 1
897
8/23/00
Pine Haven M. H.P. Sys. 2
141
7/19/00
High Point Associates System 4
370
9/16/00
Trap Pond State Park
25
5/26/00










































Total # of Violations:
39

# of Systems Affected:
36

# of Repeat Violators (Systems):
4

Total Population At Risk:
38,919










Bacteria Monitoring Violations
Systems which failed to collect the required number of samples during
any monitoring period in 2000



System Name
Population Served
Date Violation Occurred















Total # of Violations:
0

# of Systems Affected:
0

# of Repeat Violators (Systems):
0

Total Population At Risk:
0












Nitrate Violations (maximum contaminant level of 10 mg/l)




System Name

Population Served
Date 
Violation 
Occurred
Nitrate 
Level 
(mg/l)
Little Angels Daycare
44
4/27/00
11.6 ppm
Little Angels Daycare
44
10/4/00
11.6 ppm
Teal Point
45
7/16/00
10.9 ppm
The Pit
25
5/3/00
11.6 ppm
Fish Hook MHP
40
2/14/00
11.3 ppm
Sweet Briar MHP
120
2/14/00
16.3 ppm
Sweet Briar MHP
120
5/2/00
13.1 ppm
Big T Family Restaurant
100
2/23/00
11.7 ppm
Briarwood Manor, Inc.
200
2/17/00
11.0 ppm
Briarwood Manor, Inc.
200
10/9/00
11.0 ppm
Thomas England House Restaurant
200
2/25/00
11.0 ppm
Holiday Park System II
237
5/13/00
12.2 ppm
Holiday Park System II
237
8/19/00
12.0 ppm
Tall Pines Resort Community
100
6/6/00
11.7 ppm
Tall Pines Resort Community
100
10/2/00
11.0 ppm



Total # of Violations:
15

# of Systems Affected:
10

# of Repeat Violators (Systems):
5

Total Population At Risk:
1,111




Lead and Copper Rule
Systems Which Have Failed to Conduct Monitoring



System Name
Population Served
Date Violation Occurred
Central Christian School
67
7/24/95
Great Scott Broadcasting
60
New Water System
Kenton Day Care Center
35
New Water System
Little Angels Day Care Center
44
New Water System
Little Hearts Learning Center
50
New Water System
Lynn Lee Village
25
New Water System
Seafarer Village
45
New Water System
Slaughter Neck Comm. Action Agency
90
New Water System
Vines Creek M.H.P.
51
New Water System



Total # of Violations:
8

# of Systems Affected:
8

# of Repeat Violators (Systems):
N/A

Total Population At Risk:
407




Lead and Copper Rule
Systems Which Are Required to Install Corrosion Control Treatment



System Name
Population Served
Date Violation Occurred
Arrow Safety Device
35
7/25/00
Center for the Creative Arts
40
6/27/94
Cherry Creek Valley
55
1/13/94
Colonial Estates M.H.P.
168
2/7/96
Country Rest Home
37
1/13/94
Del. State Police, Troop 4 (Georgetown)
40
10/4/95
Del. State Police, Troop 9 (Odessa)
60
Jan-94
Delaware Adolescent Program, Inc.
41
5/8/97
Dept. of Hwys & Trans (Ellendale)
25
Oct-93
Enchanted Meadows
108
6/17/96
Forest Park
80
7/7/94
Governor Bacon
1500
4/26/00
Homestead Park
230
6/5/98
Millpond Acres
624
9/7/99
O.A. Newton & Sons, Inc.
25
3/4/94
Polytech High School
800
10/21/94
Rehoboth Bay M.H.P.
554
10/21/94
Savannah Place
44
6/5/98
Shady Park – Sys. I
35
6/5/98
Stockley Center
1,000
Oct-93
Sussex Manor M.H.P.
270
6/17/96
Tall Pines Resort Community – Sys. I
150
10/4/95
Tall Pines Resort Community – Sys. II
50
1/28/94
Wilmington Jr. Academy
100
11/23/94



# of Systems Affected:
24

# of Repeat Violators (Systems):
N/A

Total Population At Risk:
6,071




Trace Metal Violations




System Name
Population 
Served
Date 
Violation 
Occurred

Contaminant

MCL1
In mg/l2
Level
Found
In mg/l






None








1MCL means Maximum Contaminant Level


2mg/l means milligrams per liter





Total # of Violations:
0

# of Systems Affected:
0

# of Repeat Violators (Systems):
N/A

Total Population At Risk:
N/A







Volatile Organic Compound (VOC) Violations




System Name
Population 
Served
Date 
Violation 
Occurred

Contaminant

MCL1
In mg/l2
Level
Found
In mg/l
Camelot M.H.P.
305
2/17/00
Lindane
0.0002
0.0005
Camelot M.H.P.
305
5/23/00
Lindane
0.0002
0.0003
1MCL means 
Maximum 
Contaminant Level


2mg/l means 
milligrams per liter





Total # of Violations:
2

# of Systems Affected:
1

# of Repeat Violators (Systems):
1

Total Population At Risk:
305







Conclusion


In the preceding pages several numbers and statistics were presented, but what does it mean?  Is my water 
safe to drink?  During calendar year 2000, out of a population of over 783,600 persons who consumed 
public drinking water in the State of Delaware, only 46,813 persons (6%) were exposed to harmful (health 
related) contaminants .  This means that 94% of the population was provided drinking water that met or 
exceeded the standards as set by the Safe Drinking Water Act, Federal and State Regulations.  Out of 611 
public water systems, 79, or 12.9%, had a violation and only 5 systems (<1%) were repeat violators.  
Given these numbers it would be safe to say that the overall status of Delaware's public drinking water is 
very good.

The Office of Drinking Water, in cooperation with the Environmental Protection Agency and other State 
Agencies, is working with Delaware's public drinking water systems to ensure that violations have been 
corrected or are in the process of being corrected.  The end result of this cooperative action is ensuring 
that all residents of and visitors to the State of Delaware receive a safe and potable source of drinking 
water.

Any questions or comments concerning this report and summary can be directed to the Division of Public 
Health, Office of Drinking Water at (302) 739-5410.




  Values are in milligrams per liter (mg/l), unless otherwise specified.
  Number of major monitoring violations for sanitary survey under the Total Coliform Rule.
  1996 World Almanac.
  Estimate using 2000 Census.
  Estimate using 1991 Delaware Geological Survey map.
  Estimate using population.
  Implemented by Department of Natural Resources and Environmental Control, Water Resources Division.
  First percentage based on population served, second percentage based on total number of public water systems.
  Systems performed own sampling.
  Includes sampling on Community and Non-Transient Non-Community water systems only.
  Includes public water systems which did not perform Lead and Copper Rule monitoring and systems which are required to 
install corrosion control treatment in accordance with the Lead and Copper Rule
1

20
ii
10
19


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