SUMMARY OF KEY REQUIREMENTS FOR THE

SUMMARY OF KEY REQUIREMENTS FOR THE PHASE II AND PHASE V/ WELLHEAD PROTECTION RULES (Community, Nontransient Noncommunity and Transient Noncommunity ...
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SUMMARY OF KEY REQUIREMENTS FOR THE

PHASE II AND PHASE V/ WELLHEAD PROTECTION RULES (Community, Nontransient Noncommunity and Transient Noncommunity Water Systems) COMMONWEALTH OF PENNSYLVANIA Department of Environmental Protection For more information, visit DEP’s Web site at http://www.depweb.state.pa.us/

DEPARTMENT OF ENVIRONMENTAL PROTECTION Bureau of Water Standards and Facility Regulation Document Number:

383-0810-105

Title:

Summary of Key Requirements for the Phase II and Phase V/Wellhead Protection Rules

Authority:

Pennsylvania’s Safe Drinking Water Act (35 P.S. §721.1 et seq.) and regulations at 25 Pa. Code Chapter 109.

Effective Date:

March 27, 1997 Minor changes were made to pages i, 1 and 23 (March 1, 1999). Minor changes were made to pages i and 22 (March 1, 2002).

Policy:

Department of Environmental Protection (DEP) staff will follow the guidance and procedures presented in this document to direct and support implementation of the Phase II and Phase V/Wellhead Protection Rules under the drinking water management programs.

Purpose:

The purpose of this document is to establish a rational and reasonable basis for staff decisions which will promote quality, timely and consistent service to the public and regulated community.

Applicability:

This guidance will apply to all public water systems.

Disclaimer:

The guidance and procedures outlined in this document are intended to summarize existing requirements. Nothing in this document shall affect more stringent regulatory requirements. The guidance and procedures herein are not an adjudication or a regulation. There is no intent on the part of DEP to give this document that weight or deference. The guidance and procedures merely summarize how and on what basis DEP will administer and implement its responsibilities with respect to implementing the Pennsylvania Phase II and Phase V/Wellhead Protection Rules. DEP reserves the discretion to deviate from the guidance and procedures in this document if circumstances warrant.

Page Length:

22 pages

Location:

Volume 19, Tab 01

Definitions:

See 25 Pa. Code Chapter 109

383-0810-105 / March 13, 2002 / Page i

TABLE OF CONTENTS Page Phase II and Phase V/Wellhead Protection Rules ...................................................................... 1 Volatile Synthetic Organic Chemical (VOC) Monitoring Requirements................................... (Community and Nontransient Noncommunity Water Systems) Initial Monitoring Schedule ............................................................................................................... 3 Repeat Monitoring Schedule.............................................................................................................. 4 List of Chemicals ............................................................................................................................... 5 Monitoring Requirements Flowchart ................................................................................................. 6

Synthetic Organic Chemical (SOC) Monitoring Requirements (Community and Nontransient Noncommunity Water Systems) Initial Monitoring Schedule ............................................................................................................... 7 Repeat Monitoring Schedule.............................................................................................................. 7 List of Chemicals ............................................................................................................................... 9 Monitoring Requirements Flowchart ............................................................................................... 10

Asbestos Monitoring Requirements (Community and Nontransient Noncommunity Water Systems) Initial Monitoring Schedule ............................................................................................................. 11 Repeat Monitoring Schedule............................................................................................................ 11 Monitoring Requirements Flowchart ............................................................................................... 12

Nitrate/Nitrite Monitoring Requirements (Community, Nontransient Noncommunity and Transient Noncommunity Water Systems) Initial Monitoring Schedule ............................................................................................................. 13 Repeat Monitoring Schedule............................................................................................................ 13 Monitoring Requirements Flowchart ............................................................................................... 14

383-0810-105 / March 13, 2002 / Page ii

Page Inorganic Chemical (IOC) Monitoring Requirements (Except Asbestos, Nitrate and Nitrite) (Community and Nontransient Noncommunity Water Systems) Initial Monitoring Schedule ............................................................................................................15 Repeat Monitoring Schedule...........................................................................................................15 List of Chemicals ............................................................................................................................16 Monitoring Requirements Flowchart ..............................................................................................17

Treatment Technique Requirements for Acrylamide and Epichlorohydrin ........................18 Unregulated Chemicals for Which Special Monitoring is Required......................................19 Data Management and Waiver Request Review Fees .............................................................20 Wellhead Protection....................................................................................................................21 List of Regional DEP Offices and Counties Served .................................................................22

383-0810-105 / March 13, 2002 / Page iii

Phase II and Phase V/Wellhead Protection Rules On October 8, 1994 the final Phase II and Phase V/Wellhead Protection Rules were published in the Pennsylvania Bulletin. The regulations consist of three major parts: 1. 2. 3.

EPA Phase II and Phase V Rule Implementation; Data management and waiver request review fees to help provide funding for DEP to implement the Phase II and Phase V Rules; and Wellhead protection.

The primary purpose of the regulation is to comply with the provisions of the Pennsylvania Safe Drinking Water Act and develop state regulations which allow DEP to implement the requirements of the federal Phase II and Phase V Rules. These rules established maximum contaminant levels (MCLs) or treatment techniques and/or monitoring requirements for 15 inorganic and 53 organic chemicals, and only monitoring requirements for one inorganic and 13 organic chemicals. New or revised primary MCLs adopted by EPA are incorporated into state regulations by reference and are effective on the date established by the federal regulations. The federal Phase II and Phase V Rules were published in the Federal Register on January 30, 1991; July 1, 1991; May 27, 1992; and July 17, 1992. State regulations at least as stringent as the federal rules are necessary for DEP to maintain primary enforcement of the federal Safe Drinking Water Act. The regulation increased the state MCLs for five contaminants (barium, chromium, selenium, endrin and 2,4,5-TP), eliminated the primary MCLs for silver and lead, and added secondary MCLs for silver and aluminum to be consistent with the federal rules. Treatment techniques for two water treatment chemicals also were established. Since it is difficult to analyze for these chemicals in drinking water samples, the regulation requires that water suppliers maintain records of the use of acrylamide and epichlorohydrin to ensure that a specified dose is not exceeded. The MCLs and treatment techniques apply to all public water systems (approximately 10,600) in Pennsylvania. The monitoring requirements under this rule apply to all community (approximately 2,200) and nontransient noncommunity (approximately 1,300) water systems; however, transient noncommunity systems (approximately 7,000) only are required to conduct routine monitoring for nitrate and nitrite. The monitoring for the VOCs, SOCs and IOCs summarized on the following pages is not required for purchased finished water if the public water system from which the finished water is obtained complies with the required VOC, SOC and IOC monitoring. Asbestos monitoring in the distribution system is required when DEP determines that the distribution system contains asbestos cement pipe and optimum corrosion control has not been implemented.

383-0810-105 / March 13, 2002 / Page 1

The regulation includes a schedule of data management and waiver request review fees to be assessed of public water systems to help defray DEP’s costs to implement the federal Phase II and Phase V Rules. Wellhead protection requirements also are part of the regulation. The 1986 federal Safe Drinking Water Act Amendments required the development of state wellhead protection programs to protect public water supply wells from contamination. The underlying principle of the program is that it is much less expensive to protect groundwater than it is to remediate it once it becomes contaminated.

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Volatile Synthetic Organic Chemical (VOC) Monitoring Requirements (Community and Nontransient Noncommunity Water Systems) Initial Monitoring Schedule Systems Serving More Than 10,000 People



A sample shall be collected from each of the system’s entry points every calendar quarter of 1994 and analyzed for each of the 21 VOCs listed on Table 1, except vinyl chloride as noted at the bottom of the next page.

Systems Serving 3,301 to 10,000 People



A sample shall be collected from each of the system’s entry points every calendar quarter of 1995 and analyzed for each of the 21 VOCs listed on Table 1, except vinyl chloride as noted at the bottom of the next page.

Systems Serving 500 to 3,300 People



A sample shall be collected from each of the system’s entry points every calendar quarter of 1993 and analyzed for each of the 21 VOCs listed in Table 1, except vinyl chloride as noted at the bottom of the next page.

Systems Serving Less Than 500 People



A sample shall be collected from each of the system’s entry points every calendar quarter of 1994 and analyzed for each of the 21 VOCs listed on Table 1, except vinyl chloride as noted at the bottom of the next page.

NOTE: For systems serving more than 3,300 people which were in existence prior to January 1, 1993, initial monitoring for compliance with the MCLs for VOCs as listed on Table 1 will be reduced to one sample for each entry point at which all VOC monitoring required by DEP between January 1, 1988 and December 31, 1992 has been conducted and no regulated VOCs were detected, and the first quarter of required initial VOC monitoring has been conducted with no detection of a VOC. This does not apply to entry points where treatment has been installed for VOC removal.

383-0810-105 / March 13, 2002 / Page 3

Repeat Monitoring Schedule Entry Points at Which None of the 21 VOCs Are Detected

• •

One sample shall be collected each subsequent calendar year at each entry point where none of the 21 VOCs were detected during initial monitoring, and analyzed for all 21 VOCs listed on Table 1, except vinyl chloride. For groundwater entry points, if none of the 21 VOCs are detected during three consecutive years of annual and/or quarterly monitoring, required monitoring is reduced to one sample per entry point, three years following the base year of initial monitoring and every three years thereafter, except at entry points where treatment has been installed for VOC removal.

Entry Points at Which Any of the 21 VOCs Are Detected

• •



For entry points at which any of the 21 VOCs are detected during initial or repeat monitoring and the concentrations for VOCs detected are less than the MCLs listed on Table 1, required repeat monitoring for all 21 VOCs, except vinyl chloride as noted below, is one sample each calendar year. For entry points at which any of the 21 VOCs are detected during initial monitoring at a concentration equal to or greater than the MCLs listed on Table 1, or repeat monitoring at a concentration greater than the MCL, quarterly monitoring for all 21 VOCs, except vinyl chloride as noted below, shall be conducted until all of the monitoring results in four consecutive quarterly samples are less than the MCLs. After four consecutive samples with all results less than the MCLs, required monitoring is reduced to one sample each calendar year. Where treatment has been installed, at least annual compliance monitoring (for all 21 VOCs with the possible exception of vinyl chloride) and quarterly operational monitoring (for the contaminants to be removed) is required. For entry points at which any of the 21 VOCs are detected for the first time, required monitoring is quarterly until reduced monitoring is granted.

NOTE: Vinyl chloride analysis is only required for groundwater entry points where any of the following two-carbon organic compounds are detected in a sample: 1,2-dichloroethane; 1,1-dichloroethylene; cis-1,2-dichloroethylene; trans-1,2dichloroethylene; tetrachloroethylene; 1,1,1-trichloroethane; or trichloroethylene.

383-0810-105 / March 13, 2002 / Page 4

TABLE 1 Volatile Synthetic Organic Chemicals

MCL (mg/L)

Benzene Carbon Tetrachloride 1,2-Dichloroethane o-Dichlorobenzene para-Dichlorobenzene 1,1-Dichloroethylene cis-1,2-Dichloroethylene trans-1,2-Dichloroethylene Dichloromethane 1,2-Dichloropropane Ethylbenzene

0.005 0.005 0.005 0.6 0.075 0.007 0.07 0.1 0.005 0.005 0.7

Monochlorobenzene Styrene Tetrachloroethylene Toluene 1,2,4-Trichlorobenzene 1,1,1-Trichloroethane 1,1,2-Trichloroethane Trichloroethylene Vinyl Chloride Xylenes (total)

0.1 0.1 0.005 1 0.07 0.2 0.005 0.005 0.002 10

383-0810-105 / March 13, 2002 / Page 5

VOC MONITORING REQUIREMENTS (COMMUNITY & NONTRANSIENT NONCOMMUNITY WATER SYSTEMS) Initial & Repeat Base Monitoring: 4 Consecutive Quarterly Samples Beginning . . . . . . . .

Annual:

21 VOCs not

Then

detected at an EP (See notes 1, 2, & 4)

For GWEPs only: If VOCs not detected in 3 years of annual and quarterly monitoring

1 sample/EP begining next CV

1/1/93 for CWSs/NTNCs serving 500 to 3,300 persons

VOCs detected in any single sample (See Note 5)

If 1/1/94 for CWSs/NTNCs serving < 500 & > 10,000 persons

CWS = Community Water System NTNC = Nontransient Noncommunity Water System EP = Entry Point GW = Groundwater

If

Quarterly Monitoring: Minimum of 4 consecutive quarterly samples

1/1/95 for CWSs/NTNCs serving 3,301 to 10,000 persons

Then

Each Sample < MCLs VOCs detected at an EP (See Note 3)

1 Sample/EP every 3 years (See Note 4)

Then

Annual: Then

1 Sample/EP for all 21 VOCs begin next CY

If

If

VOCs > MCL in any annual sample (See Note 5)

Then If

SW = Surface Water CY = Calendar Year

Any single samples ≥ MCL

Then

Continue quarterly monitoring for all 21 VOCs

Until

Each of 4 consecutive quarterly samples are < MCLs

(1)

Systems serving 3,300 or fewer people which monitored at least one quarter prior to October 1, 1993 and did not detect any VOCs at an entry point (EP) during the first quarterly sample were not required to conduct any additional VOC monitoring for the remainder of the calendar year at that entry point. Systems serving 500-3300 had to monitor during the quarter beginning January 1, 1993.

(2)

For systems serving more than 3,300 people which monitored an entry point between January 1, 1988 and December 31, 1992 for all 21 VOCs, except vinyl chloride as noted in (3) below and 1, 2, 4 - trichlorobenzene, with no detections of a VOC, and do not detect any of the 21 VOCs during the first quarter of the initial monitoring year, the required monitoring is reduced to one sample per year for each qualifying entry point.

(3)

Vinyl chloride analysis is only required for groundwater entry points where any of the following two-carbon VOCs are detected: 1,2-Dichloroethane, 1,1-Dichloroethylene, cis-1,2-Dichloroethylene, trans1, 2-Dichloroethylene, Tetrachloroethylene, 1,1,1-Trichloroethane or Trichloroethylene.

(4)

This reduced monitoring option is not applicable to EPs at which treatment is provided to meet VOC MCLs.

(5)

A confirmation sample is required within two weeks if any sample during annual or less frequent monitoring is >MCL.

383-0810-105 / March 13, 2002 / Page 6

Synthetic Organic Chemical (SOC) Monitoring Requirements (Community and Nontransient Noncommunity Water Systems Initial Monitoring Schedule





A waiver from initial required SOC monitoring will be granted based on a determination by DEP than an entry point is not vulnerable to SOC contamination. System waiver requests will be evaluated by DEP for each entry point and each of the SOCs listed on Table 2. A system is granted a waiver from monitoring for dioxin and PCBs unless DEP determines that there is a source of dioxin or PCB contamination which poses a threat to a drinking water source. The SOCs on Table 2 for which a waiver has not been granted at an entry point shall be sampled for four consecutive quarters starting during the quarter beginning January 1, 1995.

Repeat Monitoring Schedule Individual SOCs Not Detected at an Entry Point







For systems serving 3,300 or fewer people, one sample shall be collected every three years from the year of the required initial VOC monitoring at each entry point for each of the SOCs listed on Table 2 which was not detected. Monitoring shall be conducted during the second calendar year quarter unless otherwise specified by DEP. For systems serving greater than 3,300 people, two consecutive quarterly samples shall be collected every three years from the year of the required initial VOC monitoring at each entry point for each of the SOCs listed on Table 2 which was not detected. Monitoring shall be conducted during the second and third calendar year quarters unless otherwise specified by DEP. DEP will notify systems of any waivers which have been granted.

Individual SOCs Detected at an Entry Point



For entry points at which any of the individual SOCs are detected during initial or repeat monitoring at a concentration less than the MCL, one sample shall be collected annually during the quarter with the highest result and analyzed for each detected SOC. If more than one detected SOC can be analyzed for by using the same analytical technique and the highest result for these SOCs occur in different quarters, the SOCs can be analyzed for in the quarter where the total concentration of these SOCs is greatest.

383-0810-105 / March 13, 2002 / Page 7





For entry points at which any of the individual SOCs are detected during initial monitoring or repeat triennial monitoring at a concentration equal to or greater than the MCL, or repeat annual monitoring at a concentration greater than the MCL, one sample shall be collected quarterly and analyzed for each SOC detected at this concentration. Quarterly monitoring for these individual SOCs shall continue until the concentration of an SOC is less than its MCL in four consecutive quarterly samples. For SOCs at each entry point which meet this criterion, required monitoring will be reduced to one annual sample at each affected entry point during the quarter with the highest sample result. After three consecutive annual samples from a groundwater entry point with no detection of an individual SOC, DEP may grant a monitoring waiver for the next three-year monitoring period for the nondetected SOCs at the groundwater entry point. Where treatment has been installed for SOC removal, at least annual compliance monitoring and quarterly performance monitoring shall be conducted for the SOCs for which treatment has been installed.

383-0810-105 / March 13, 2002 / Page 8

TABLE 2 Synthetic Organic Chemicals

Alachlor Atrazine Benzo(a)pyrene Carbofuran Chlordane 2,4-D Dalapon Di (2-ethylhexyl) adipate Di (2-ethylhexyl) phthalate Dibromochloropropane (DBCP) Dinoseb Diquat Endothall Endrin Ethylene dibromide (EDB) Glyphosate Heptachlor Heptachlor epoxide Hexachlorobenzene Hexachlorocyclopentadiene Lindane Methoxychlor Oxamyl (Vydate) PCBs Pentachlorophenol Pichloram Simazine 2,3,7,8-TCDD (Dioxin) Toxaphene 2,4,5-TP (Silvex)

383-0810-105 / March 13, 2002 / Page 9

MCL (mg/L)

0.002 0.003 0.0002 0.04 0.002 0.07 0.2 0.4 0.006 0.0002 0.007 0.02 0.1 0.002 0.00005 0.7 0.0004 0.0002 0.001 0.05 0.0002 0.04 0.2 0.0005 0.001 0.5 0.004 3 X 10-8 0.003 0.05

SOC MONITORING REQUIREMENTS (COMMUNITY & NTNC SYSTEMS) DEP will grant waiver for monitoring period if EP not vulnerable

DEP will grant waiver from initial monitoring for individual SOCs if EP not vulnerable GW & SW EPs

Individual SOCs not detected at an EP 4 quarterly samples during 1995 for vulnerable SOCs (See note 1)

= = =

Groundwater Surface Water Entry Points

If EP determined to be vulnerable, after a waiver has been granted, monitor 4 consecutive quarters

For individual SOCs detected. . . .(See Note 4) For systems serving > 3300, 2 quarterly samples per monitoring period (See Note 2)

Individual SOCs detected at an EP (See Note 1) GW SW EPs

For systems serving 3300 or MCL in annual sample, monitor quarterly (See Note 4)

(1)

If either heptachlor or heptachlor epoxide is detected, monitor for both in accordance with more frequent monitoring required of the two contaminants based on the level at which each is detected.

(2)

Where reduced monitoring is granted by DEP, the entry point shall be monitored at three year intervals from the year of required initial VOC monitoring. Monitoring shall be conducted during the second calendar year quarter, or the second and third calendar year quarter when two quarterly samples are required in each compliance period.

(3)

This reduced monitoring option is not applicable to SOCs for which treatment has been installed to remove the SOC.

(4)

A confirmation sample is required if any sample during annual or less frequent monitoring is > MCL.

(5)

New EPs

383-0810-105 / March 13, 2002 / Page 10

Asbestos Monitoring Requirements (Community and Nontransient Noncommunity Water Systems) Initial Monitoring Schedule



All sampling points (entry point or distribution system) are granted a monitoring waiver unless DEP determines that a sampling point is vulnerable to asbestos contamination. Systems with vulnerable sampling points will be notified by DEP to take one sample from each vulnerable sampling point by December 31, 1995.

Repeat Monitoring Schedule

• •

For vulnerable sampling points at which the initial sample result is equal to or less than the MCL of 7 million long fibers/liter, one sample shall be collected during the first three-year compliance period of each nine-year compliance cycle. For sampling points at which asbestos is detected at a concentration greater than the MCL, one sample shall be collected quarterly. Quarterly monitoring shall continue until the concentration of asbestos is less than the MCL in four consecutive quarterly samples. At sampling points which meet this criterion, required monitoring is reduced to one sample every nine years during the first three-year compliance period of each nine-year compliance cycle, provided that treatment has not been installed to remove asbestos from the source water. Compliance monitoring at entry points at which treatment has been installed to remove asbestos from the source water shall be conducted at least annually.

383-0810-105 / March 13, 2002 / Page 11

ASBESTOS MONITORING REQUIREMETNS (COMMUNITY & NTNC SYSTEMS)

System granted waiver unless vulnerable per DEP

If DEP determines system vulnerable, 1 sample/SP (See Note 1)

C & NTNC GW & SW Sampling points

If > MCL, begin quarterly monitoring

If DEP determines system vulnerable, 1 sample/SP during 1995 (See Note 1)

C NTNC GW SW SP

= = = = =

If < MCL 4 consec. quarters, DEP may reduce to 1 sample/9 yr./SP or grant waiver (See Note 2)

If initial sample ≤ MCL, 1 sample during first comp. period of each comp. cycle or grant waiver

Community Water System Nontransient Noncommunity Water System Groundwater Surface Water Sampling Point (vulnerable entry point or distribution sampling point)

1)

For systems determined by DEP to be vulnerable to asbestos contamination, the water supplier shall monitor for compliance with the MCL for asbestos by taking one sample at each vulnerable sampling point during the first three-year compliance period of each nine-year compliance cycle, with the initial compliance monitoring beginning not later than the calendar year beginning January 1, 1995.

(2)

This reduced monitoring option is not applicable to entry points at which treatment is provided to remove asbestos from source water.

383-0810-105 / March 13, 2002 / Page 12

Nitrate/Nitrite Monitoring Requirements (Community, Nontransient Noncommunity and Transient Noncommunity Water Systems) The following compliance monitoring for nitrite is not required at entry points receiving water which has been disinfected with free chlorine, chlorine dioxide or ozone.

Initial Monitoring Schedule



All public water systems shall monitor for nitrate and nitrite by taking one annual sample at each entry point beginning during the year 1993, except that community and nontransient noncommunity water systems with surface water sources shall monitor quarterly at each surface water entry point for nitrate and nitrite beginning January 1993.

Repeat Monitoring Schedule







For entry points where the concentration of both nitrate and nitrite in all first year samples is less than 50% of their respective MCLs (nitrate MCL = 10 mg/L, nitrite MCL = 1 mg/L), nitrate and nitrite monitoring shall be repeated annually during the quarter in which the water supplier anticipates the highest levels of contamination. For entry points where the concentration of either nitrate or nitrite in the initial or subsequent monitoring results is equal to or greater than 50% of their respective MCLs, but less than or equal to the MCL, community and nontransient noncommunity systems shall monitor quarterly for both nitrate and nitrite, and transient noncommunity systems shall monitor annually for both nitrate and nitrite. Quarterly monitoring by community and nontransient noncommunity systems shall continue until the concentration of both nitrate and nitrite is less than 50% of their respective MCLs in four consecutive quarterly samples. For entry points which meet this criterion, required monitoring is reduced to one annual sample at each affected entry point during the quarter in which the consecutive quarterly monitoring indicated the highest level of contamination was present. For entry points where the concentration of nitrate or nitrite is greater than their respective MCLs, quarterly monitoring shall be required. A confirmation sample also is required within 24 hours of any sample result exceeding the MCL for nitrate or nitrite. Quarterly monitoring by community and nontransient noncommunity systems shall continue until the concentration of both nitrate and nitrite is less than 50% of their respective MCLs in four consecutive quarterly samples. Quarterly monitoring by transient noncommunity systems shall continue until the concentration of both nitrate and nitrite in each sample is less than the MCLs. For entry points which meet this criterion, required monitoring is reduced to one annual sample at each affected entry point during the quarter in which the consecutive quarterly monitoring indicated the highest level of contamination was present.

383-0810-105 / March 13, 2002 / Page 13

NITRATE/NITRITE MONITORING REQUIREMENTS (COMMUNITY, NTNC & TNC SYSTEMS If NO2 & NO3 in all initial (first year) samples < 50% of MCL. . . .

Nitrate and nitrite monitoring beginning 1/1/93 C & NTNC GW EPs monitor annually TNC GW & SW EPs monitor annually C & NTNC SW EPs monitor quarterly (See Note 1)

C NTNC TNC EP GW SW SP NO2 NO3

= = = = = = = = =

Community Water System Nontransient Noncommunity Water System Transient Noncommunity Water System Entry Point Groundwater Surface Water Sampling Point Nitrite Nitrate

If NO2 or NO3 in any sample ≥ 50% of MCL but ≤ MCL. . .

NO2 & NO3 monitoring annually in quarter specified

C & NTNC monitoring quarterly for NO2 & NO3

TNC monitoring annually for NO2 & NO3

C & NTNC monitoring quarterly for NO2 & NO3 If NO2 or NO3 in any sample > MCL, confirmation sample required and . . . (See Note 2) TNC monitoring quarterly for NO2 & NO3

(1)

Nitrite monitoring is not required at entry points receiving water which has been disinfected using chlorine, chlorine dioxide or ozone.

(2)

Noncommunity water systems for which DEP has approved an alternate nitrate level are only required to collect a confirmation sample if the alternate nitrate level or the nitrite MCL has been exceeded.

383-0810-105 / March 13, 2002 / Page 14

After 4 consec. quarterly samples each < 50% MCL, reduce to 1 sample/yr/EP in quarter specified

After 4 consec. quarterly samples each MCL, monitor quarterly (See Note 2)

If < MCL 4 consec. quarters, reduce to initial monitoring frequency

If 3 consec. rounds < MCL, DEP will grant reduced monitoring waiver to 1 sample EP during the first 3-yr. monitoring period of each 9-yr. monitoring cycle. (See Note 1)

1)

This reduced monitoring option is not applicable to IOCs for which treatment has been installed to remove the IOC.

(2)

A confirmation sample is required if any sample during annual or less frequent monitoring is > MCL.

383-0810-105 / March 13, 2002 / Page 17

Treatment Technique Requirements for Acrylamide and Epichlorohydrin Systems which use acrylamide or epichlorohydrin in the water treatment process shall maintain flow and chemical usage records in accordance with §109.701(d)(7) to certify that the combination or product of dose and monomer level did not exceed the following: Acrylamide = 0.05% dosed at 1 ppm (or equivalent) Epichlorohydrin = 0.01% dosed at 20 ppm (or equivalent)

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Unregulated Chemicals for Which Special Monitoring is Required DEP may grant a waiver from the monitoring requirements for some or all of the unregulated organic chemicals listed below. DEP has developed procedures for evaluating the vulnerability of water system entry points to these chemicals. Community and nontransient noncommunity water systems serving 150 or more service connections or 500 or more persons shall monitor for these unregulated chemicals as follows, except those organic chemicals for which a monitoring waiver has been granted by DEP:

• •

Each system shall collect one sample at each entry point during 1995 and have it analyzed for sulfate. Each system shall collect one sample at each entry point during each calendar year quarter of 1995 and have it analyzed for the 13 organic chemicals listed below.

TABLE 4 Inorganic Chemicals

Sulfate

Organic Chemicals

Aldicarb Aldicarb Sulfone Aldicarb Sulfoxide Aldrin Butachlor Carbaryl Dicamba Dieldrin 3-Hydroxycarbofuran Methomyl Metolachor Metribuzin Propachlor

383-0810-105 / March 13, 2002 / Page 19

Data Management and Waiver Request Review Fees A one-time data management fee to be assessed of community water systems has been established (§109.305(a)) to help defray DEP cost of redesigning the data management system to accommodate Phase II/V monitoring requirements. The fee, to be assessed in 1995, has been developed taking into consideration the increase in the FY 1994-95 state budget for the Safe Drinking Water Program. The data management fees increase with system size due to an increase in the number of entry points as system size increases, and thus the amount of monitoring data. Fees to review waiver requests (§109.305(b)) have been developed based on the estimated person-hours to perform this activity. Fees increase with system size because the complexity and magnitude of the information and data required increases with system size, thus requiring more time to perform the activity.

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Wellhead Protection Permit applications for new community groundwater sources are to include a DEP approved delineation of the Zone I wellhead protection area (§109.503(a)(1)(iii)(D)). For all construction permit applications accepted by DEP a year or more after publication of this regulation in the Pennsylvania Bulletin, a water supplier developing a new community groundwater source shall own or substantially control through methods acceptable to DEP, the Zone I wellhead protection area (§109.603(b)(1)). The Zone I wellhead protection area is defined by a radius of 100 to 400 feet around the groundwater source.

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LIST OF REGIONAL DEP OFFICES AND COUNTIES SERVED SOUTHEAST REGIONAL OFFICE PA DEP - WSM Southeast Field Operations 2 East Main Street Norristown, PA 19401 Telephone: (484) 250-5900

Bucks, Chester, Delaware, Montgomery and Philadelphia

NORTHEAST REGIONAL OFFICE PA DEP - WSM Northeast Field Operations 2 Public Square Wilkes-Barre, PA 18711-0790 Telephone: (570) 826-2511

Carbon, Lackawanna, Lehigh, Luzerne, Monroe, Northampton, Pike, Schuylkill, Susquehanna, Wayne and Wyoming

SOUTHCENTRAL REGIONAL OFFICE PA DEP - WSM Southcentral Field Operations 909 Elmerton Avenue Harrisburg, PA 17110 Telephone: (717) 705-4708

Adams, Bedford, Berks, Blair, Cumberland, Dauphin, Franklin, Fulton, Huntingdon, Juniata, Lancaster, Lebanon, Mifflin, Perry and York

NORTHCENTRAL REGIONAL OFFICE PA DEP - WSM Northcentral Field Operations 208 West Third Street, Suite 101 Williamsport, PA 17701 Telephone: (570) 327-3636

Bradford, Cameron, Centre, Clearfield, Clinton, Columbia, Lycoming, Montour, Northumberland, Potter, Snyder, Sullivan, Tioga and Union

SOUTHWEST REGIONAL OFFICE PA DEP - WSM Southwest Field Operations 400 Waterfront Drive Pittsburgh, PA 15222-4745 Telephone: (412) 442-4217

Allegheny, Armstrong, Beaver, Cambria, Fayette, Greene, Indiana, Somerset, Washington and Westmoreland

NORTHWEST REGIONAL OFFICE PA DEP - WSM Northwest Field Operations 230 Chestnut Street Meadville, PA 16335-3481 Telephone: (814) 332-6899

Butler, Clarion, Crawford, Elk, Erie, Forest, Jefferson, Lawrence, McKean, Mercer, Venango and Warren

PA DEP - Bureau of Water Standards and Facility Regulation Division of Drinking Water Management P.O. Box 8467 Harrisburg, PA 17105-8467 Telephone: (717) 772-4018

Out-of-State Bottled Water

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