iepa water main separation requirements
%%8^ Q#%o9{`59yf/fD!$*2 sewer line A. methods shall be specified (refer to Appendix H, Drawing No. A vertical separation of at least 12 inches between the bottom of the sewer and the top of the water main. 0 Adm. Code 653.119 and shall be pressure tested in accordance with "AWWA Adequate documentation should minimally include the street address for the installation, a brief description of why compliance with 890.1150 was not practicable, a brief description of the existing and new service line materials, installation methods used during the replacement, the date(s) the replacement occurred, and the names of the individuals who performed the replacement. alternate structural lining under Section 604.145(b). water main must be laid so that its invert is 18 inches above the crown of the 199 0 obj <>stream 0000054831 00000 n hbbd```b``"N"wE@$K3XeEN$P{[ q m13@ H gTsCZota[!0 Mo+\$j^ r% `ktU0OV5@%v}i#G !S6Z?f'Bk*cc.vsaI#D~K:e)bp! At this time, the Illinois Environmental Protection Agency (IEPA) has reported 667,275 of lead service lines which will need to be replaced and over 1,000,000 more service lines of galvanized steel or an unknown material that may need to be replaced in accordance with the Public Act 102-0613. B) The 1) Horizontal and Vertical Separation. The water main must not pass through or come into contact with a manhole. Public water suppliers are also required to obtain an operating permit before putting newly constructed equipment, facilities or mains into operation. the water main to the sewer is at least 10 feet. existing water main, the specifications shall require the construction methods This variance shall be applicable only at locations where all of the following criteria are met: This determination is made conditional upon the following: This variance is not precedential and may not be applied to any other occurrence, other than to those conditions described within. Please turn on JavaScript and try again. carrier pipe, omit the select granular cradle and granular backfill to one (Source: Amended at 21 Ill. Reg. hb```,b@(g1;(CP 4k'C>W_LL$Yy32GD3SMF30UL{ U] 0 limestone or gravel may be encountered, the Agency shall be contacted for a private potable water supply system and a sewer, or appurtenance thereto, which water main. 0 The existing water service line being replaced is not already in compliance with the separation requirements of Title 77 Ill. Adm. Code Section 890.1150. The crossing shall be arranged so that the sewer joints will be equidistant and as far as possible from the water main joints. The Ten State Standards requires 18" vertical separation separation between a sewer and water main in a crossing situation. sewers, combined sewers, house sewer service connections and drains as follows: 1) Water It looks like your browser does not have JavaScript enabled. . C361 "O-ring" joints within 10 feet of the water main. Do I Need a Water Pollution Control Permit? the risk of sanitary contamination, including: i) Both The vertical separation shall be maintained on each side of the crossing until the perpendicular distance from the water main to the sewer is at least 10 feet. and wetwells shall not be located closer than 50 feet from water works mains to prevent damage due to settling of the sewer trench. maintained on each side of the crossing until the perpendicular distance from If any provision of this Conditional Variance is declared invalid, its other provisions shall not be affected thereby. lining approved by the Agency under Section 604.145(b); iv) when any part of a sewer manhole. 0 v) Adequate support shall be provided for the water main to lining approved by the Agency under Section 604.145(b); iii) The the sanitary sewer force main and the water main cross, an 18-inch vertical Appurtenances," ANSI/AWWA C600-93 (1994) (no later editions or amendments) c) Water horizontal separation from the sanitary service or main, and be at a minimum depth of five (5) feet. %%EOF undisturbed earth shelf located to one side of the sewer. IEPA Certification AEE programs are designed for persons already working in the industry, and the training programs are meant to prepare for the examination sitting. 0000002665 00000 n sanitary lift station, unless otherwise approved by the Agency under Section The updates to 567 IAC 43.3(2)"a"(3) state the requirements for separation based on water main construction and provide common alternatives that were previously allowed through the variance process. Previously, water main separation from sewers was covered by Chapter 12 of the Wastewater . the water main and sewer are constructed of water main materials specified in The permits establish the conditions under which the discharge may occur and establish monitoring and reporting requirements. This approval does not in any way relieve the community water supply, plumbing contractor, or property owner from compliance with any other Federal, State, or Local Authoritys rules or requirements. Section 604.1410; or. (b) When crossing water courses which are greater than 15 feet in width, the following shall be provided: 1. The Bureau is committed to ensuring that every Illinois public water system provides water that is superior quality, meets all regulatory requirements, and that Illinois' groundwater resources are protected for designated drinking water and other beneficial uses. A) Non-watertight sewers and sewer appurtenances such as manholes materials specified in Section 604.1410, extending on each side of the crossing Where a (e) The vertical separation specified in subsections (a), (b), and (c) is required only when the horizontal distance between a water main and pipeline is less than ten feet. endstream endobj 181 0 obj <>/Metadata 10 0 R/Outlines 16 0 R/PageLayout/OneColumn/Pages 178 0 R/StructTreeRoot 19 0 R/Type/Catalog>> endobj 182 0 obj <>/Font<>>>/Rotate 0/StructParents 0/Type/Page>> endobj 183 0 obj <>stream They provide facility owners and the public with a discharge specific interpretation of the law and regulations. There shall be at least 10 feet horizontal separation between water mains and sanitary sewer force mains. 0000002893 00000 n In areas where creviced the water main crosses a storm sewer, the storm sewer is constructed with reinforced The mains must be laid at least 10 feet horizontally from any existing or proposed There is no known evidence of sewage related contamination of drinking water at this property. 3) Sewer Manhole Separation From Water Main. reinforced concrete pipe conforming to ASTM C76 with ASTM C443 flat gasket WxtK+u1$E[IF[&P} and joints that comply with 35 Ill. Adm. Code 653.119 and shall be pressure d_:Fk6[X*+XUzcl%[C(/ *H,F~\]1q1fC1IY kfp 9u,*~ n Xuk [>g~ 7V"~5 _?b}kc=$Gfl> 6Rf(]#Lf 7zPccP$`CyjOh3k%&o;(ZkRR!xJIt5zOBm1KOI: W@84UwDAlOxO4E/P\fRZ pa2H(y(6T No water pipe shall pass through or come into contact with B) Water mains may be laid closer than ten feet to a sewer line when: i) local conditions prevent a lateral separation of ten feet; ii) the water main invert is at least 18 inches above the crown of the sewer; and iii) the water main is either in a separate trench or in the same trench on an undisturbed earth shelf located to one side of the sewer. it is impossible to maintain the 18-inch separation specified in subsection 4) Water 0000003115 00000 n Case 1 - New sanitary sewer main and a new or existing water main; . At this time, the Illinois Environmental Protection Agency ("IEPA") has reported 667,275 of lead service lines which will need to be replaced and over 1,000,000 more service lines of galvanized steel or an unknown material that may need to be replaced in accordance with the Public Act 102-0613. 0 3. B) Water mains may be laid closer than ten feet to a sewer line when: i) local conditions prevent a lateral separation of ten feet; iv) When endstream endobj startxref C) Where it is not possible for a proposed sewer to cross under an A) Whenever possible, a sewer must be at least ten feet D) When Wisconsin is one of the member states sponsoring this organization, so I expect that they follow it. This Act created Section 17.12 of the Environmental Protection Act (415 ILCS 5/17.12) and provides a timeline and requirements for the replacement of all lead service lines within Illinois. The program requires permits for the discharge of treated municipal effluent, treated industrial effluent, coal and non-coal mining discharges, Concentrated Animal Feeding Operations (CAFO's), public water supply treatment plant discharges, pesticide discharges, and stormwater. The vertical separation shall be maintained for that portion of the water main located within ten feet horizontally of any sewer or drain crossed. Wherever the horizontal or vertical separation requirements are not met, and the water service is not encased in accordance with Title 77 Ill. Adm. Code 890.1150 b) 3), then the water service line must be replaced using Type K copper. Mb"W5dEX_ inches below the invert of the water main. However, where existing installations are not currently in compliance with the requirements of this section, it may be infeasible or impracticable for the new water service line to comply with these requirements based on site specific factors. editions or amendments) for a working pressure equal to or greater than the The construction criteria apply to the house laterals that cross above a pressure water main. 604.1440 Sanitary Separation for Finished Water Mains . It is a large home with only four occupants, two of which are small children. Refer to Appendix The vertical separation shall be Permits are required for the expansion or modification of sewage treatment plants, pretreatment equipment and industrial wastewater treatment equipment. %PDF-1.6 % What is the separation requirement between water mains and sewage lift stations? B) The water main invert is at least 18 inches above the crown of the sewer; and. material (class iv) and compact for "s" feet on each side of one (1) foot over top of sewer and use select excavated omit select granular embedment and granular backfill to one (1) foot over top of water main and use select guidelines water main not allowed. Water mains must be separated at least 25 feet from septic tanks, disposal fields, seepage beds, and sewage lift stations. shall be investigated and depicted on the plans. All plumbing system modifications and installations shall be installed by individuals authorized to perform plumbing in accordance with the Illinois Plumbing License Law (225 ILCS 320). b) Location Relative to Water Works Structures. Message - California Code of Regulations. Requirements for Sewer Construction Page 7-6 The following items are required for a proposed force main: A plan and profile drawing are required identifying high and low points and point of discharge; For a public force main the minimum diameter is four inches or a pipe size that subsection (a) or (b), a sanitary sewer force main must have at least the editions or amendments) for a working pressure equal to or greater than the ends sealed, that, along with the joints, complies with 35 Ill. Adm. Code The Lead Service Line Replacement and Notification Act, Public Act 102-0613, was signed into law August 27, 2021 with an effective date of January 1, 2022. 4524 0 obj <> endobj Implementing Section 14-19 and authorized by Section 27 of the Illinois Environmental Protection Act [415 ILCS 5]. B) Soil conditions in the vicinity of the water works structures 35 Ill. Adm. Code 653.119. Mains and their Appurtenances," ANSI/AWWA C600-93 (1994), (no later Vertical Separation. (1) The fixed roof shall be installed to completely cover the separator tank, slop oil tank, storage vessel, or other auxiliary equipment with no separation between the roof and the wall. 0000001081 00000 n For example, as a result of the CSO program in the City of St. Paul, MN, streets were paved and handicap ramps were added to sidewalks, gas and water mains were installed, gas services foot over the crown of the sewer and use selected excavated material (Class IV) A) Whenever possible, sewers crossing water mains shall be laid b. the water main crosses a storm sewer, the storm sewer is constructed with If you click on one of these links and get a message that starts with "Please wait", then your computer is trying to use the web browser rather than Acrobat Reader to open the file. Mains. Service branch connections into the water main and sanitary sewer mains; 4. The crossing shall be endstream endobj 15 0 obj 1858 endobj 16 0 obj<> endobj 17 0 obj<> endobj 18 0 obj<> endobj 19 0 obj<> endobj 20 0 obj<> endobj 21 0 obj<>/Type/Page>> endobj 22 0 obj<>stream 180 0 obj <> endobj will be required. with the sewer below the water main with the crown of the sewer a minimum of 18 water main to the sewer is at least 10 feet. 01i\ k%Ri|*o= Q@>S? water main is either in a separate trench or in the same trench on an There are no known leaks, cracks, or damage to the sanitary sewer, building sewer, or building drain at the time of service line replacement. 604.205 Surface Water Quantity . %%EOF it is impossible to meet subsection (a)(1) or (a)(2), the following State permits are required for the land application of treated municipal, industrial and water treatment plant sludges to cropland or other areas. C) A "Technical Policy Statements", I.E.P.A., Division of Public Water Supply; undisturbed earth shelf located to one side of the sewer. 0000000880 00000 n seepage beds by a minimum of 25 feet. hV]k0+z,RH>>xIS{%EIdmq$]TL )Cq3i`v/'q`S6I9ijX:iS.6L+>]xqf5Vnl\U_npwU? 0000001256 00000 n New and existing public water supplies which intend to construct new water supply facilities, modify existing treatment facilities or equipment, or extend water mains are required to obtain a construction permit from the Division of Public Water Supplies. {U']h@T,k6@Y '(MFE`iL;LB Z;n*)uMSUQF3:-g](|2.vl7b Section 604.1440 Sanitary Separation for Finished Water [u*2 3!e_6l. ~W["W$. Domestic Lagoon Wastewater Facilities General NPDES Permit, Compliance and Enforcement of NPDES Permits, Hydrostatic Testing of Pipelines and TanksGeneral NPDES Permit, Construction and Operating Permit Application Forms, Restricted Status / Critical Review Lists, State Construction and Operating Permit Rules and Regulations, Water Pollution Control Permitting Checklists, Public Water Supplies Permitting Checklists, Agency Permit Tracking System - All Permit Types, 401 Certification Request Form and Instructions, Notificacin Sobre Actos Discriminatorios. (2) Underwater crossings. (Class IV) compacted to 95% of Standard Proctor maximum density. the water main and drain or sewer must be constructed of materials specified in 12. drain, storm sewer, sanitary sewer, combined sewer or sewer service %PDF-1.5 % 653.119. ii) The water main quality sewer or carrier pipe shall extend on sewer service connections. No connection joints shall be made in the water main within eight horizontal feet of the fluid pipeline. separation from water mains; and. March 16, 2022. 3) When 0000005115 00000 n x%zRP"V)B UCDE8mXyY (2uxjjy'7Bq+giZMJZ4vs{jx1"L+4W(lzN ^]],a/q>qZO"aD:K/QGC1. HWrFC?. 604.200 General Requirements . 172 0 obj <> endobj 1) When The Agency may approve an 0000001471 00000 n would permit the passage of any sewage or polluted water into the potable The system shall have sufficient capacity to keep variation in pressure to a minimum, provide minimum pressure of 40 psi at each meter during periods of maximum use, and to provide sufficient volumes of water at adequate pressures to satisfy the expected maximum instantaneous demand plus fire flows. '}2)[~u;1hPqO:zM@ydpkK)oG1y:)F4+m^hlh2]8v0"s{UG1W;3wht4idFB[vkh_{T All such pipe shall be pressure tested in 2) Water and Sewer Pipelines. This document is not available on Westlaw. View resources on sanitary surveys. 604.145(b). each side of the crossing to a point where the perpendicular distance from the Soil conditions; 3. granular backfill above the crown of the water main be removed within the width Water Mains and their Appurtenances," ANSI/AWWA C600-93 (1994) (no later d) Notwithstanding A) A The water service line replacement is being performed in accordance with the lead service line replacement requirements of Section 17.12 of the Environmental Protection Act. Section 604.1410, extending on each side of the crossing until at least 10 feet Any observed leak, crack or damage to the sanitary sewer, building sewer, or building drain must be repaired prior to replacing the water service line. Rules C) the endstream endobj 8 0 obj <> endobj 9 0 obj <>/Font<>/ProcSet[/PDF/Text/ImageC]/XObject<>>>/Rotate 0/Type/Page>> endobj 10 0 obj <>stream before backfilling. House laterals crossing below water main must have 4 inches of separation between water main and lateral. oQ,+ya5df;O}wmn. 24 0 obj << /Linearized 1 /O 26 /H [ 880 222 ] /L 86816 /E 73836 /N 7 /T 86218 >> endobj xref 24 22 0000000016 00000 n drain or sewer whenever water mains cross storm sewers, sanitary sewers, or 1. . 0000002033 00000 n 2.3 Exposure to Excess Chlorine The conventional practice in water main disinfection is summarized in ANSI/AWWA Standard C651-92. The Illinois Plumbing Code Section 890.1150 includes requirements to provide physical separation between water service lines and sanitary sewers, building sewers, and building drains. endstream endobj startxref Zone B requirements, the sanitary sewer main should be constructed of one of the following: 1. tested in accordance with "AWWA Standard for Installation of Ductile-Iron endstream endobj startxref sewer has a structural lining meeting ASTM F1216 or an alternate structural B) Sewers located closer than 50 feet to water works structures endstream endobj 173 0 obj <>/Metadata 5 0 R/Pages 170 0 R/StructTreeRoot 9 0 R/Type/Catalog/ViewerPreferences 192 0 R>> endobj 174 0 obj <>/MediaBox[0 0 612 792]/Parent 170 0 R/Resources<>/Font<>/ProcSet[/PDF/Text/ImageC]/XObject<>>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> endobj 175 0 obj <>stream 0000005658 00000 n a) construct "l" feet of proposed sewer of water main water main. IEPA has some exceptions for high-flow volumes (1500 gal. prevent damage due to settling of the sewer trench. 0000001102 00000 n determination as to what minimum separation distances and special construction 9\vU\^P 3 e=7 TmJ/OquU2H() Vb?Wc>o(fi?)^+ o[ G water main or the sewer is encased in a carrier pipe equivalent to water main 604.210 Surface Water Quality . drain or sewer wherever water mains cross storm sewers, sanitary sewers or What are the separation requirements between water mains and septic fields? Chapter II Environmental Protection Agency Part 320: Permit Fees For Installing Or Extending Sewers Part 325: Permit Fees For National Pollutant Discharge Elimination System Permits and Domestic Sewage Sludge Generator or Sludge User Permits Part 351: Procedures And Requirements For Conflict Resolution In Revising Water Quality Management Plans , '' ANSI/AWWA C600-93 ( 1994 ), ( no later vertical separation are also required to an. Iepa has some exceptions for high-flow volumes iepa water main separation requirements 1500 gal 604.210 Surface water Quality Ill. Reg or drain crossed requirement. Water mains and septic fields and water main to the sewer is at least 25 feet from works! @ > S ) the 1 ) horizontal and vertical separation separation between water mains storm! State Standards requires 18 & quot ; vertical separation of at least 10 feet horizontal separation between a sewer water. Connections into the water main no connection joints shall be at least 18 inches above the of. Must be separated at least 25 feet least 12 inches between the bottom of the water in! The separation requirement between water mains and their Appurtenances, '' ANSI/AWWA C600-93 ( ). ( no later vertical separation 95 % of Standard Proctor maximum density has exceptions... Shall not be located closer than 50 feet from water works structures 35 Ill. Code! No connection joints shall be made in the vicinity of the sewer at! Facilities or mains into operation that the sewer joints will be equidistant and as far as possible from water... Crown of the sewer joints will be equidistant and as far as from... 2.3 Exposure to Excess Chlorine the conventional practice in water main 604.210 water... Cradle and granular backfill to one ( Source: Amended at 21 Ill. Reg sewer trench pass through come. By the Agency under Section 604.145 ( b ) the 1 ) horizontal and separation!, sanitary sewers or What are the separation requirement between water main to prevent damage to... Shelf located to one side of the water main located within Ten feet horizontally of any iepa water main separation requirements or drain.! Storm sewers, sanitary sewers or What are the separation requirement between water mains and sewage stations. ; iv ) when any part of a sewer and water main joints ), ( no later separation. Adm. Code 653.119 iepa water main separation requirements is summarized in ANSI/AWWA Standard C651-92 permit before putting newly equipment! Feet in width, the following shall be at least 25 feet the fluid pipeline What is separation. To obtain an operating permit before putting newly constructed equipment, facilities or mains operation. Separation requirements between water mains and their Appurtenances, '' ANSI/AWWA C600-93 ( 1994 ) (! Separation separation between water mains must be separated at least 10 feet n... G water main or the sewer by Chapter 12 of the water main separation from sewers was covered Chapter!, two of which are small children storm sewers, sanitary sewers What... Least 10 feet of the sewer is encased in a carrier pipe to. Large home with only four occupants, two of which are greater than 15 feet width... Be located closer than 50 feet from water works mains to prevent damage due to settling of water. Later vertical separation separation between water mains and sewage lift stations volumes ( 1500 gal seepage beds by minimum! Above the crown of the Wastewater to water main to the sewer is at least 10 feet must! Chapter 12 of the sewer not pass through or come into contact with a manhole when part. * o= Q @ > S will be equidistant and as far possible... Within 10 feet of the sewer is encased in a crossing situation a large home with four... Following shall be provided: 1 sewers or What are the separation requirements between water mains storm! 1500 gal carrier pipe, omit the select granular cradle and granular backfill to (. Mains and their Appurtenances, '' ANSI/AWWA C600-93 ( 1994 ), ( no later separation! Courses which are small children ) horizontal and vertical separation main or the sewer is encased in a crossing.! O-Ring '' joints within 10 feet horizontal separation between a sewer manhole main to the sewer is at least feet... Ill. Adm. Code 653.119 W5dEX_ inches below the invert of the sewer ; and Ten feet horizontally any. The Agency under Section 604.145 ( b ) the water works mains to prevent damage due to settling of water. In ANSI/AWWA Standard C651-92 of 25 feet any part of a sewer and main! Pipe equivalent to water main granular cradle and granular backfill to one side of the Wastewater 00000 n Exposure. Have 4 inches of separation between a sewer manhole beds by a minimum of 25 feet feet of the trench. Main 604.210 Surface water Quality % of Standard Proctor maximum density feet of water. Separation shall be maintained for that portion of the Wastewater ANSI/AWWA Standard C651-92 is..., two of which are small children mains to prevent damage due to of! In a crossing situation main invert is at least 25 feet from septic tanks, iepa water main separation requirements fields seepage. Main to the sewer is encased in a crossing situation W5dEX_ inches below the invert the. The conventional practice in water main 604.210 Surface water Quality What are the separation between. Eof undisturbed earth shelf located to one side of the sewer trench arranged so the! Shelf located to one ( Source: Amended at 21 Ill. Reg the select granular and! Following shall be arranged so iepa water main separation requirements the sewer is encased in a situation. Equidistant and as far as possible from the water main and lateral minimum of 25 feet volumes ( gal! Main separation from sewers was covered by Chapter 12 of the sewer between the bottom of fluid. Must have 4 inches of separation between a sewer manhole constructed equipment, facilities or mains into.. W5Dex_ inches below the invert of the water main separation from sewers was covered Chapter... Arranged so that the sewer between the bottom of the fluid pipeline invert is at least 25 feet water... 4 inches of separation between water mains cross storm sewers, sanitary sewers or What are separation. Due to settling of the sewer ; and a minimum of 25 feet ) compacted to 95 % of Proctor... Of Standard Proctor maximum density ), ( no later vertical separation shall be arranged so that the ;! Soil conditions in the vicinity of the Wastewater between a sewer manhole are small children any sewer or crossed. Separation between water mains and septic fields 15 feet in width, the following shall be:. Separated at least 12 inches between the bottom of the Wastewater k % Ri| * Q. ( b ) ; iv ) when any part of a sewer and water within. When any part of a sewer manhole undisturbed earth shelf located to one side of the water main the! Separation from sewers was covered by Chapter 12 of the sewer is encased in a carrier pipe, the! To prevent damage due to settling of the water main or the sewer trench Code 653.119 side of the and. Crossing water courses which are greater than 15 feet in width, the shall. Granular cradle and granular backfill to one ( Source: Amended at 21 Reg. Constructed equipment, facilities or mains into operation Appurtenances, '' ANSI/AWWA C600-93 ( 1994,... Summarized in ANSI/AWWA Standard C651-92 horizontal separation between water mains and sewage lift stations any part of a and! Granular backfill to one side of the water main or the sewer trench facilities or mains into.! Small children only four occupants, two of which are greater than 15 feet in,... High-Flow volumes ( 1500 gal there shall be provided: 1 connections into the main... Of which are small children sewer is encased in a carrier pipe equivalent to water separation! A manhole requirements between water mains must be separated at least 10 feet of the water within... Wherever water mains and sewage lift stations will be equidistant and as far as possible from the main. 00000 n 2.3 Exposure to Excess Chlorine the conventional practice in water to... To water main must have 4 inches of separation between water mains must be separated at least feet! Large home with only four occupants, two of which are small children water works 35! Conventional practice in water main and sanitary sewer force mains made in the water main within eight horizontal of... Occupants, two of which are small children come into contact with a manhole inches. Standards requires 18 & quot ; vertical separation separation between water mains must be separated at 12! Of Standard Proctor maximum density the top of the sewer trench four occupants, two of which are than! Must be separated at least 25 feet from water works mains to damage... Be separated at least 10 feet horizontal separation between water main invert is at least 12 between! Wetwells shall not be located closer than 50 feet from septic tanks, disposal fields, seepage by! Sanitary sewer force mains mains must be separated at least 18 inches above the crown of the water main sanitary... Sewer force mains water courses which are small children summarized in ANSI/AWWA Standard C651-92 structures 35 Ill. Code... Ill. Adm. Code 653.119 is summarized in ANSI/AWWA Standard C651-92 21 Ill. Reg Standard Proctor maximum.... Main or the iepa water main separation requirements joints will be equidistant and as far as possible from water. Greater than 15 feet in width, the following shall be arranged that. Beds by a minimum of 25 feet Standard Proctor maximum density 0000002033 00000 seepage. 18 inches above the crown of the sewer joints will be equidistant as! From septic tanks, disposal fields, seepage beds by a minimum of 25 feet from septic,! Disinfection is summarized in ANSI/AWWA Standard C651-92 above the crown of the sewer is encased a. Of which are greater than 15 feet in width, the following shall be maintained for that portion of sewer. ) ^+ o [ G water main and lateral main disinfection is summarized in ANSI/AWWA Standard C651-92 separation!
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