THE CITY OF NORFOLK MODIFICATIONS TO HRPDC REGIONAL STANDARDS, 3rd Edition Amendment 1
Section	Sub-Section	Name	Add/ Delete	Modification
All Sections		Measurement for Payment.	Replace	See Section 110 for City of Norfolk Department of Utilities Payment Item Descriptions.  Replace all references to Mesaurement for Payment in the technical specifications with Section 110.
102	VII	Standard Bid Items and Units	Delete	Use City of Norfolk Measurement and Payment descriptions. Refer to Section 110 - Special Provisions.
All 100 sections		General Provisions	Replace	Revise all HRPDC General Provisions with Norfolk City Modifications and Department of Utilities Modifications
200	II.2.1	Quality Assurance	Modify	Change the VDOT Road and Bridge Specifications edition date from 1994 to 2002.
	II.2.2	Quality Assurance	Add	International Plumbing Code                                                                                                                                                                                                                                                                               Norfolk Arboricultural Specifications and Standard Practice Manual
	III.3.6	Submittals	Add	Add the following sentences: “The Contractor shall also certify that this substitution will not adversely affect other elements of the Work or the construction schedule, and shall identify local maintenance service and source(s) of replacement parts and materials.  Requests for substitutions shall be submitted at the pre-construction meeting and must be approved in writing by the Engineer prior to the start of any construction.”
	IV.4.3.B	Aggregate	Modify	Correct the sentence to read, “Aggregates placed directly on the ground for stockpiling purposes, shall not be removed from those stockpiles within 1 foot of the ground until final cleanup. (Only clean aggregate shall be used.)
	V.5.1.E	Aggregate	Add	Insert  “of this document” after “Division 8 activities” and before the comma.
	V.5.10.A.9	Ductile Iron Pipe	Add	Ductile Iron pipe shall have Sewpercoat calcium aluminate lining, Protecto 401 ceramic epoxy lining, or equal hydrogen sulfide resistant lining approved by the Department.
	V.5.10.A.9	Ductile Iron Pipe	Delete	"or, a polyurethane lining of 35 mils minimum thickness."
	V.10.B.5	PVC Pipe	Modify	Correct the second sentence to read: “When Compact fittings are used, they shall have a minimum acceptable pressure rating of 350 psi.”
	V.10.B.7.	PVC Pipe	Modify	Correct the sentence to read: “Solvent cement for non-gasketed PVC pipe shall meet the requirement of ASTM D-2564.”
	V. 5.10.C.	HDPE Pipe	Add	HDPE pipe may only be used with prior written approval by the Department.
	V.5.10.D.1.a.	Valves	Add	All gate valves for sewer shall open left (counterclockwise).
	V.5.10.D.1.c.	Valves	Delete	Delete “with threaded connections” from the first sentence.
	V.5.10.D.1.d.	Valves	Add	Accessories:  Provide zinc plated bonnet bolts, studs and nuts for unsubmerged service.  Provide stainless bonnet bolts, studs and nuts for submerged service.  Make wedging devices bronze to iron or bronze to bronze.  Provide glands which are bronze or bronze bushed and bronze gland bolts and nuts.
	V.5.10.D.3	Valve Operators	Delete	“A valve key wrench of adequate length and of each type required shall be provided for each project.”
	V.5.10.D.4.	Valve Stem Extensions	Delete	Strike out section
	V.5.10.D.4.	Check Valves	Add	Provide single disc swing check valves designed to allow a full diameter passage and to operate with a minimum loss of pressure.  Provide 1/8 through 3 inch check valves that meet the requirements of MSS SP-80.  Provide 4 inch through 24 inch check valves that meet the requirements of AWWA C508.  Equip check valves with bronze renewable seat rings, bronze discs or disc rings and bronze disc hinge bushings and pins.  Carefully mount discs and provide discs that swivel in disc hinges.  Provide pins, discs and other parts that are noncorrosive, nonsticking and properly cured to operate satisfactorily within a temperature range of 34 to 100 degrees Farenheit and with the fluids specified.  Equip 6 inch and larger check valves with outside levers and weights.  Provide check valves manufactured by American Flow Control, Clow Valve, M&H Valve, Mueller Valve, or approved equal.
	V.5.10.F.2.a.	Joint Restraint Devices	Modify	Re-title the section “Pipe Restraint:”
	V.5.10.F.2.c.	Joint Restraint Devices	Add	Harnessing:  For ductile-iron pipe and fittings with mechanical joints that require harnessing, provide ductile-iron mechanical joint retainer glands.
	V.5.10.F.3.c	Joint Restraint Devices	Add	Harnessing:  For PVC joints requiring harnessing, provide Series 1300/1390 restraining fittings as manufactured by Uni-flange, Corp., Series 1110 HV and Series 2000 PV as manufactured by EBAA Iron Sales, Inc., or equal.
	V.5.11.A.6	Ductile Iron Pipe Fittings	Modify	Correct the second sentence to read: “When Compact fittings are used, they shall have a minimum acceptable pressure rating of 350 psi.”
	V.5.11.A.8	Ductile Iron Pipe Fittings	Add	After ANSI/AWWA add “Current department approved linings include Sewpercoat calcium aluminate lining and Protecto 401 ceramic epoxy lining.  Other hydrogen sulfide resistant linings shall be submitted for review and approval as equal”.
	V.5.11.B.5.	PVC Pipe	Delete	"SDR 23.5 or"
	V.5.11.B.8	PVC Pipe Fittings	Add	Add paragraph “For Mains installed, where cover is 10’ (ten feet) or greater, the pipe shall be C900/C905 DR 18 or Ductile Iron.”
	V.5.11.B.9	PVC Pipe Fittings	Add	Add paragraph “All fittings shall be molded or ductile iron.  No fabricated fittings will be allowed.”
	V.5.11.C.	ABS or PVC Composite Pipe and Fittings	Delete	Strike out section
	V.5.11.D.5	Manholes	Delete	Last sentence that starts with, "Aluminum steps…".
	V.5.19.A.6	Ductile Iron Pipe fittings	Modify	Correct the second sentence to read:  " When Compact fittings are used, they shall have a minimum acceptable pressure rating of 350 psi."
	V.5.19.B.3.	PVC Pipe	Delete	“couplings, and fabricated fittings” and “or fitting”.
	V.5.19.B.6	PVC Pipe	Add	Add as the final sentence in the paragraph:  "Where Schedule 80 PVC is used, solvent cement shall meet the requirement of ASTM D-2564."
	V.5.19.B.7.	PVC Pipe	Delete	Strike out paragraph
	V.5.19.C.	Copper Water Pipe	Delete	Strike the sentence that starts, “Fittings shall be wrought…”
	V.5.19.D.1.b.	Valves	Add	All gate valves for water shall open right (clockwise).
	V.5.19.D.1.c.	Valves	Delete	Strike out “with threaded connections”.
	V.5.19.D.2.a	Butterfly Valves	Modify	Replace “16 inches” with “20 inches”.
	V.5.19.D.4.	Valve Operators	Modify	Strike out the sentence that begins, “A valve key wrench…” Add the following: “NOTE: Water valves open right (clockwise).”
	V.5.19.D.5.	Valve Stem Extensions	Delete	Strike out paragraph
	V.5.19.F.1	Fire Hydrants	Add	"All fire hydrants shall be manufactured in complete accordance with American Water Works Association Specification C502, latest revised edition, and shall be as manufactured by the Darling Valve & Manufacturing Company (Model B-50-B), Mueller Centurian A-421, Pacer Model W-67, Kennedy K-81, or approved equal.  Hydrants shall have full 360 degree revolving heads and shall open by turning the operating nut to the right (clockwise).
	V.5.19.F.2.	Fire Hydrants	Delete	"The fire hydrant shall be painted with a high gloss, alkalyd industrial enamel (colors to be selected by Owner)".
	V.5.19.F.3	Fire Hydrants	Delete	Strike out paragraph
	V.5.19.F.5	Fire Hydrants	Modify	Change the the section on steamer nozzles from, "…nozzle with 4-inch (or 4 1/2-inch as specified by the Owner) National…" to, "…nozzle with 4 1/2-inch National…".
	V.5.19.F.6	Fire Hydrants	Delete	Strike out paragraph
	V.5.19.H.1	Water Meters	Delete	“meter yoke”.
	V.5.19.H.2	Water Meters	Delete	“and installed”
	V.5.19.I.4.a.	Concrete Reaction Blocking	Add	The phrase, ", or as designated by the Engineer," after the word, "Drawings".
	V.5.19.I.4	Concrete Reaction Blocking	Delete	subsections b and c
	V.5.19.J.2.	Tapping Valves and Sleeves	Delete	Strike out the sentence, “The valves shall be subjected to a factory test…”
	V.5.19.J.3.a.	Tapping Sleeves for DI Pipe and PVC C-900	Modify	In the first sentence insert “full bodied” between “shall be” and “mechanical joint”.  Delete “in accordance with ANSI/AWWA C110/A21.10. and” from the sentence beginning with “Tapping sleeves shall be…”
	V.5.19.J.3.b.	PVC pipe (Other than C-900)	Delete	Strike out the first paragraph, which begins, “Tapping sleeves shall be complete…”
	V.5.20.B.	Subsurface Utility Warning Tape	Modify	Replace “metalized” with “non-metallic”.
	V.5.21.F.1	Manhole Rehabilitation Using Cementious Products	Delete	Delete entire section
	V.5.21.I.2	Manholke Frame Seals	Delete	After "only be installed with the" delete "cementious lining and"
303	II.2.2.B.5	Trenching, Backfilling, and Compaction	Modify	Re-write the last sentence to read ”In such instances, sheeting will be cut off at least two (2) feet below finished grade and left in place.”
	II.2.2.E.1	Trench Bedding and Backfilling	Modify	Replace “Contractor” with “Inspector”.
	II.2.2.E.4.	Trench Bedding and Backfilling	Modify	Replace the paragraph with: “Backfill material shall be solidly compacted around the pipe in 6” layers up to sub-base of the roadway or the existing ground elevation.  As a minimum, compact each layer of the backfill material to 95% maximum density as determined in accordance with VTM-1.
	II.2.2.E.7.	Trench Bedding and Backfilling	Modify	Replace in the first sentence, "...material to not less than the following percentages at the maximum…" with "…material to 95% maximum…".
	II.2.2.E.7.	Trench Bedding and Backfilling	Delete	sub sections “a – c”.
	II.2.2.E.7.d.	Trench Bedding and Backfilling	Add	“The City may, at any time, require compaction testing to ensure compliance with the specifications.  A recognized testing laboratory that is selected by the City will conduct all tests.  The testing laboratory is to be qualified in the field of the materials to be tested.  If applicable, all tests will be conducted in accordance with V.D.O.T.’S “Manual for Virginia Testing Methods”  (Current Edition, as Revised).  Payment for all tests will be in accordance with the following:                                                                                                           A) The cost of all tests failing to meet the minimum requirements will be borne by the Contractor.                                                                                                                    B) The costs of all tests that either meet or exceed the minimum requirements shall be borne by the City.
	II.2.2.F.	Restoration - General	Delete	“in accordance with the drawings and at a minimum the areas disturbed shall be”.  Leave the remainder of the sentence.
	II.2.2.G.2.	Pavement Removal for Placement of Pipelines	Modify	Replace the sentence beginning, “The minimum requirements for a…”  with, “Temporary pavement shall be of minimum 6” stone with 3” of cold mix laid to the original line and grade and thoroughly compacted.”
	II.2.3.	Tolerances	Delete	Complete Section
801	II.2.2.C.7.	Pipe Installation	Modify	Replace “300” with “100”
	II.2.2.F.	Tracer Wire	Modify	Replace “attached every 10 feet to” with “1 foot above”.
	II.2.2.G.	Subsurface Utility Tape	Modify	Re-write the paragraph to read,” All non-metallic water mains shall be identified by a subsurface non-metallic utility warning tape placed at an elevation of 12” above the copper tracer wire or as directed by the owner, conforming to Section 200.”
	II.2.3.A.	Valve Installation	Modify	After “direction of openings” insert the following, “(All water valves open right)”.  Re-write the second sentence to read, ”Valves found not opening to the right, or determined to be defective by the Owner shall be rejected, removed from the site, and replaced by the Contractor at no additional cost to the Owner.”
	II.2.6.C.	Restraint	Add	After “…coating” add the following, “or as directed by the Owner.”
	II.2.7.B.	Connections to Existing Mains	Delete	Delete the sentence that begins with, “Connection shall be…”.  Delete the last two sentences and replace with, “The Owner shall make every effort to have a complete shut down.  Failure by the Owner to achieve a complete shut down shall not entitle the Contractor to any additional compensation.”
	II.2.7.B.4	Connections to Existing Mains	Modify	Replace the paragraph with, "Tie-ins to existing mains shall only be performed after the new main has been satisfactorily pressure tested and chlorinated.  The contractor may not tie-in the new main to the existing main until after the results of the bacteriological tests have been completed and approved by the owner."
	II.2.7.C.	Tapping Existing Mains Under Pressure	Delete	Delete subsections 2, 3, and 5.
	II.2.7.C.4.	Tapping Existing Mains Under Pressure	Modify	Change the pressure to 150 psig and maintain the pressure for 1-hour.
	II.2.7.C.6.	Tapping Existing Mains Under Pressure	Add	In the first sentence, after “…branch are acceptable” add the following, “unless otherwise directed by the Owner.”
	II.2.8.B.1.	Pressure Test	Modify	In the sentence which begins, “Water mains shall be…” remove the portion that states, “1.5 times the expected working pressure or” and the portion that states, “whichever is greater”.  In the sentence which begins, “The pressure test shall be…” after “that are discovered”, insert, “during and”.  After “…replaced by the Contractor” insert “and retested.”
	II.2.8.B.3.	Pressure Test	Add	“, or as directed by the Owner.”
	II.2.8.B.8.	Pressure Test	Modify	Replace this subsection with, “The test pressure shall be maintained at the pressure stated in the project specifications throughout the duration of the test period.  The water used to maintain the test pressure shall be measured and shall be less than the allowable leakage in order for the main to have passed the test.”
	II.2.8.B.10.	Pressure Test	Modify	After “…restraint and support” insert “ for testing apparatus”.
	II.2.8.C.2.	Leakage Test	Modify	Insert the word “excess” between “…until the” and “leakage is eliminated.”
802	I.1.1	Description of Work	Delete	…"up to 18-inch in diameter."
	I.1.2.B.5.	Submittals	Modify	Replace "3 years" with "1 year from date of final acceptance".
	II.2.1.E.	General	Add	Provide cut sheets for all manholes, 100 ft. stations and end-of-line cleanouts.
	II.2.1.F.	General	Add	All Services which are reconnected to the replaced sewer main shall be shown on the "As Built" drawings with the exact distance from the nearest manhole and with the details of the method of reconnection.
	II.2.2.C.4.	Pipe Laying	Add	"If a swab is in the pipe for cleaning, the grade shall be checked and recoreded for each joint of pipe.
	II.2.2.C.6	Pipe Laying	Modify	After"…shall be close" insert " by use of a temporary bulkhead" and delete " to the satisfaction of the Owner".
	II.2.2.D.1.	Alignment and Grade	Modify	Replace "Drawings" with "approved laying schedule".
	II.2.2.D.2.	Alignment and Grade	Delete	Entire subsection
	II.2.3.B.	Manhole Installation	Add	To the end of the second sentence after: non-shrink grout-"and goated to match surfaces of manholes."
	II.2.4.A.1.	Testing and Inspection	Delete	The word "flushing".
	II.2.4.A.2.	Testing and Inspection	Modify	Change the sentence to read, "The Contractor shall submit to the Owner, at least 48 hours in advance, any requests to schedule testing and inspection."
	II.2.4.A.6.	Testing and Inspection	Add	Sub-section 6 to read, "Contractor is responsible for repairing any deficient work at no additional cost to the Owner."
	II.2.4.B.1.a. (5).	Pipe Testing - Gravity Lines	Add	"Contractor is responsible for uncovering and restoring spot check sites at no additional cost to the Owner."
	II.2.4.B.1.a. (6).	Pipe Testing - Gravity Lines	Modify	Replace the word, “tha” with “the”.
	II.2.4.B.1.a. (8)	Pipe Testing - Gravity Lines	Modify	Replace the last sentence with, "See Section 811."
	II.2.4.B.1.b	Pipe Testing - Gravity Lines	Add	Insert "Contractor is responsible for removal of mandrel if it becomes stuck in the pipe." before the sentence that begins with "Any sections that…"
	II.2.4.B.1.d	Pipe Testing - Gravity Lines	Add	"A log of comments made on the video tape shall be supplied with the associated pipe footage shown."
803	II.2.2.E	Tracer Wire	Modify	Replace "attached every 10 feet to" with " 1 foot above".
	II.2.2.F	Subsurface Utility Tape	Modify	Re-write the paragraph to read "All non-metallic water mains shall be identified by a subsurface non-metallic utility warning tape placed at an elevation of 12" above the copper tracer wire or as directed by the Owner, conforming to Section 200."
	II.2.3.A	Valve Installation	Modify	After "direction of openings" insert the following;  "(All sanitary sewer valves open left)".  Re-write the second sentence to read "Valves found not opening to the left, or determined to be defective by the Owner shall be rejected, removed from the site, and replaced by the Contractor at no additional cost to the Owner."
804	II.2.2.C.3	Jacking	Add	The thrust wall and jacking system shall be designed to carry the thrust of the jacks to the soil without excessive soil deflection and in such a manner as to avoid any disturbance of adjacent structures or utilities.
	II.2.2.E.4.	Carrier Pipe Installation	Add	The carrier pipe shall be electrically isolated from the casing pipe.
805	I.1.2.B.2	Unusual Conditions	Modify	Replace the second half of the sentence that begins, “pressure tested in place…” and ends “…and tested in place.”  with, “, and meets current Virginia Department of Health Sewage Collection and Treatment Regulations.”
810	II.2.2.F.3	Acceptance of Cleaning Operation	Add	A television inspection shall be completed after cleaning to verify that the cleaning operation was successful.  The television inspection shall be in accordance with Section 811 - Television Inspection.
811	I.1.2.A.	Submittals	Add	"Video Tapes shall be Extra High Grade T-120 VHS videotape for all television surveys.  All taping shall be performed as SP (Standard Play, 2hrs/tape). All video shall be submitted to the Owner and will become the property of the Owner.  Two labels are requried, with one label placed on the video and the other on the container.  Permanently label each video with the following information: Owner Name, Contractor Name, Tape No., Date Televised, Date Submitted, Project Name, Branch Name, Street Name; Manhole No. From, Manhole No. To, Pipe Diameter, Pipe Length, Street Name."
	I.1.2.D.	Submittals	Add	Overflow Prevention Plan
	I.1.2.E.	Submittals	Add	Overflow Containment and Cleanup Plan
	II.2.1.B.1.	Equipment	Add	Sewer scanner and evaluation technology, similar to the Blackhawk pipeline assessment system, is an acceptable alternative to CCTV.
	II.2.2.A.2.	Flow Control	Modify	The end of the last sentence to read, "…unless approved by the Owner in advance".
812	I.1.2.P.	Submittals	Add	Overflow Prevention Plan
	I.1.2.Q.	Submittals	Add	Overflow Containment and Cleanup Plan
822				Replace entire section with Supplemental Specification for Manhole and Wet Well Rehabilitation and Coating.
Standard Details	RC_02	Utility Locations	Delete
	EW_02	Payment Limits Trench Excavation and Backfill	Delete
	EW_03	Trench Width Detail for Payment of Contingent Items	Delete
	CI_08	Residential Entrance w/out Curb and Gutter	Delete	Use Norfolk Public Works/Codes Standard Driveway Entrance Detail
	WD-01	Dual Service Connection	Delete	Dual Service connection not allowed.
	WD_02	Water Service Installation Detail	Modify	Replace '7.5" - 22"' with '18".' Replace '36" min.' with '24" min.' Delete Note #1.
	WD_04	Water Meter Box (Type II)	Delete
	WD_05	Blow Off Assembly	Replace	Use the Norfolk Standard Detail for Blow-Off Assembly, C.S.5.
	WD_06	Fire Hydrant Setting (TypeI)	Modify	Hydrant nozzle should be 16" from the face of the curb and 16" above the ground elevation.  Delete both references to 12" PVC, C-900 or PVC Truss Pipe" and replace with "6" DI Riser".  Delete Note #3. Add the following notes: 5. Use Megalug to connect the hydrant and the 6" DI Pipe.  6. Tie rods to be used from the valve to the tee.  7. Use Norfolk Standard Small Valve Box, C.S. 5A.
	WD _07	Fire Hydrant Setting (Type II)	Delete
	WD _08	Fire Hydrant Setting (Type II)	Delete
	WD_09	Temporary Manifold For Test and Chlorination	Modify	Actual set up may not look exactly like this detail.  After detail note "Gage approved…" insert "or furnished".
	WS _01	Standard Valve Box Frame and Cover	Delete	Use the Norfolk Standard Detail for Small Valve Box Frame and Cover, C.S. 5A.
	WS _02	Valve Setting Detail	Modify	Delete "12" PVC, C-900 or PVC Truss Pipe" and replace with "6" or 8" Riser Pipe, material to match main."  Delete the requirement for "#57 Stone" above the main to support valve box." Delete the requirement for "36" cover". Remove the requirement for "w/retainer gland." Modify the first sentence in Note #2 to read: "Plastic coated...Tracer wire laid 12" above top of main". Add "non metallic locator tape laid 12" above tracer wire."
	WS _03	Manual Air Vent Assembly	Replace	Use the Norfok Standard Detail, C.S. 5B.
	WS _05	Standard Thrust Blocks	Delete
	WS _06	Obstruction By-Pass Uniform Offset	Delete
	SS_01	Standard Precast Concrete Manhole w/Extended Monolithic Base	Replace	Use Norfolk Standard Detail, C.S.1E.
	SS_02	Precast Concrete Shallow Manhole	Replace	Use Norfolk Standard Detail, C.S. 1F.
	SS_04	Sanitary Sewer Interior Drop Manhole	Replace	Use Norfolk Standard Detail, C.S. 1G.
	SS_09	Sanitary Sewer Manhole Casting (24")	Replace	Use Norfolk Standard Detail, C.S.2
	SS_10	Sanitary Sewr Manhole Cover (24")	Replace	Use Norfolk Standard Detail, C.S.2
	SS_11	Saniary Service Lateral Clean Out Frame and Cover	Replace	Use Norfolk Standard Detail, C.S.6.
	SS_12	Sanitary Service Lateral Clean Out Frame and Cover For Heavy Loads	Delete
	SS_13	Sanitary Sewer Main Line Clean Out Box	Replace	Use Norfolk Standard Detail, C.S.3.
	SS_14	Sanitary Sewer Service Connection	Replace
	SS_15	Dual Sanitary Sewer Service Connections	Delete	Dual Service connection not allowed.
	SS_16	Deep Sanitary Sewer Service Connection	Delete
	Raw Water	Air Release Vault	Add