Department of the Interior and Local Government Office of Project Development Services Consolidated Water Supply and Sanitation Design Standards and Specifications for LGUs
Department of the Interior and Local Government Office of Project Development Services Consolidated Water Supply and Sanitation Design Standards and Specifications for LGUs
CONSOLIDATED WATER SUPPLY AND SANITATION DESIGN STANDARDS AND SPECIFICATIONS FOR LOCAL GOVERNMENT UNITS (LGUS) Department of the Interior and Local Government Office of Project Development Services Water Supply and Sanitation Sector 11th Floor, DILG-NAPOLCOM Center EDSA corner Quezon Avenue West Triangle, Quezon City 1104 www.dilg.gov.ph ® 2022 DILG. All rights reserved. The Department of the Interior and Local Government (DILG) is the primary catalyst for excellence in local governance that nurtures self-reliant, progressive, orderly, safe, and globally-competitive communities sustained by an empowered citizenry. The Office of Project Development Services (OPDS) formulates innovative approaches and strategies designed to promote technical capabilities of local government units and assist in the development of program components for the implementation of tested and appropriate systems at the local level. FOR INQUIRIES, CONTACT: OPDS Project Monitoring and Evaluation Division | [email protected] OPDS Water Supply and Sanitation Sector | [email protected] COVER PHOTO AND PAGE BREAKERS | LOCATIONS Photos used are of locally-funded projects implemented under the OPDS Programs except for typical hand pump. a. Cover Photo – Lambunao, Iloilo b. Deep Well – Pulilan, Bulacan c. Spring Box – Culaba, Biliran d. Typical Hand Pump – Zamboanga by Ummah Welfare Trust UK e. Pumps – Panganiban, Catanduanes f. Appurtenances – Anao, Tarlac g. Transmission and Distribution Lines – Anao, Tarlac h. Elevated Reinforced Concrete Reservoir – Tulunan, Cotabato i. Elevated Steel Reservoir – Currimao, Ilocos Norte j. Public Toilet Facility – Pugo, La Union k. Rainwater Collector – San Mateo, Rizal
EDUARDO M. AÑO Secretary Department of the Interior and Local Government MESSAGE Republic Act (R.A) 7160 or the Local Government Code of 1991, under Section 16 (General Welfare), provides that the local government unit (LGU) shall ensure the health and safety of their inhabitants. Further, under Section 17, the LGU shall exercise functions and responsibilities as are necessary, appropriate, or incidental to efficient and effective provision of basic services and facilities in which the design, plans, specifications shall be based on national policies, standards and guidelines. With the implementation of Mandanas-Garcia ruling, Executive Order No. 138 or the Full Devolution of Certain Functions of the Executive Branch to Local Governments, creation of a Committee on Devolution, and for Other Purposes, as commitment of the National Government on the policy of decentralization. One of the goal/aim of 138 is to develop the capabilities of the LGU to deliver basic social services and critical facilities to their constituents. TWater supply and sanitation services is one of the basic social services mentioned in Section 17 of the LGC. It is one of the foundational element that help in the development/expansion of Feconomy in the municipality. To ensure that the water supply and sanitation facilities are resilient, it should be compliant to existing national standards, laws and policies. We cannot move forward to a level of progress without ensuring the resiliency of the facilities in order to provide efficient service to our communities AI commend the formulation of this manual to address engineering aspect as this will form part in the development of capabilities of LGUs in delivering basic social services and critical projects. This manual is a consolidation of various national standards issued by various Rnational government agencies involve in the water supply and sanitation sector. This will be an important reference to the technical persons in the local level from planning, construction and sustainability of the facilities as this will guide them and have a uniform understanding and Densure the quality of water supply and sanitation infrastructure. With the unwavering support, dedication and commitment of various stakeholders in the sector, I am sure that we are projected in the right direction in guiding the LGUs in providing efficient and effective delivery of basic social services and critical facilities to their constituents. Also, a clean, safe and sustainable water and sanitation for all is within our reach. Lastly, my sincere gratitude to the people behind this initiative for their collaborative effort in coming up with this manual as a knowledge product that will help our LGUs.
Introduction The Department of the Interior and Local Government (DILG) is mandated to strengthen capacities of local government units (LGUs) and water service providers (WSPs) in the construction and delivery of water supply and sanitation infrastructure and services to communities nationwide. Through the Water Supply and Sanitation Unit of its Office of Project Development Services, the Department oversees the implementation of water supply and sanitation projects under its Programs. These Programs, such as those funded by the Local Government Support Fund (LGSF), contribute to global, national, and sectoral goals such as Sustainable Development Goal (SDG) 6, aiming to ensure universal availability and sustainable management of water and sanitation by 2030, water supply and sanitation goals in the Philippine Development Plan (PDP) and the Philippine Water Supply and Sanitation Master Plan (PWSSMP). Under the PWSSMP, one of the roles of DILG is to develop information, education, and communication materials in fulfillment of its mandate to ensure water supply and sanitation services at the local level is designed, operated, and maintained sustainably and according to national standards. This Consolidated Water Supply and Sanitation Design Standards and Specifications for Local Government Units (LGUs) lays out the technical designs in constructing the components of water supply systems and sanitation facilities. Poorly planned and designed systems and facilities result in non-functionality, insufficient water supply, and unsustainable operations. This is intended to be used by the project development coordinators and project engineers at the local government units, as well as Contractors, should LGUs opt to outsource project construction, and by others involved in project implementation. Role of local government in service delivery Republic Act 7160 or the Local Government Code of 1991 transfers control and responsibility of delivering basic social services, such as provision of reliable water supply and sanitation, to local government units. Meaningful local autonomy enables LGUs to attain their fullest development as self-reliant communities, making them more effective partners in the attainment of national goals. Further, following the implementation of the Mandanas ruling, Executive Order 138 mandates the Full Devolution of Certain Functions of the Executive Branch to Local Governments. In 2022, the substantial increase in the shares of the LGUs from national taxes will empower the LGUs in providing basic services and facilities to their constituents.
MARLO L. IRINGAN, CESO III Undersecretary for Local Government Department of the Interior and Local Government FOREWORD Provision of efficient and effective basic services and facilities is one of the main functions and responsibilities of Local Government Unit (LGU) as provided for in Republic Act (R.A) 7160 or the Local Government Code of 1991 in which water supply and sanitation services is one of the mentioned basic social services. These year (2022), the Mandanas-Garcia ruling will be implemented resulting the full devolution of certain functions of the Executive Branch to the LGU. The implementation of the ruling was further strengthened with the issuance of Executive Order No. 138 as commitment of the National Government on the policy of decentralization. One of the goal/aim of 138 is to develop the capabilities of the LGU to deliver basic social services and critical facilities to their constituents. TThe Department has long been involved in the water supply and sanitation sector and administering various programs and projects such as Sagana at Ligtas na Tubig Para sa Lahat (SALINTUBIG) and Assistance to Municipalities (AM) among others. Through the concerned FProject Management Office (PMO) under the Office of Project Development Services (OPDS) of this Department, the LGUs were informed / oriented on various existing national standards, laws and policies so that implemented projects and programs are compliant and resilient through the capacity development provided to them. AAs a continuous support of the Department to the LGU, this manual (Consolidated Water Supply and Sanitation Design Standards and Specifications for LGUs) is formulated. These will help the LGU increase their capabilities in delivering basic social services as well as the Rcapabilities of their technical staff. This manual will guide them in ensuring that their water supply and sanitation infrastructure follow the prescribed/allowable standards and specification. DLastly, I am conveying my sincere appreciation to the people involved in the formulation of this manual. Because of them, a clean, safe and sustainable water and sanitation for all is within our reach.
Table of Contents COMPONENT SHEET NO. Water Source ………………………………………..... DW21-01 Deep Well Design ……………………………………...….. DW21-02 Well Head Design Details ……………………………………...….. SCB21-01 Standard Well Design Details ……………………………………...….. SCB21-02 Spring Collection Box ………………………………………..... SCB21-03 Plan and Elevation Details ………………………………………..... SCB21-04 Spring Collection Box Type “A” ………………………………………..... SCB21-05 Spring Collection Box Type “B” ………………………………………..... SCB21-06 Spring Collection Box Type “C” ………………………………………..... SCB21-07 Spring Collection Box Type “D” Miscellaneous Details ……………………………………...….. THP21-01 Pipe layout and Perimeter Fence Typical Hand Pump Elevation Details Pumps and Appurtenances …………………………………...…….. HRP21-01 Ram Pump ……………………………………...….. HRP21-02 ……………………………………...….. HRP21-03 DIY Ram Pump Head Set-up DIY Ram Pump Head Details …………………………………...…….. FH21-01 Ram Pump Schematic Diagram …………………………………...…….. FH21-02 Fire Hydrant Fire Hydrant Installation Details Fire Hydrant Barricade Installation Transmission and Distribution Lines Trenching, Excavation and Backfilling ……………………………….... WD21-01 Valve Box and Gate Valve Details ………………………………………..... WD21-02 Buried Gate Valve Details ……………………………………......... WD21-03 End of Line Blow-Off Assembly ………………………………………..... WD21-05 In-Line Blow-Off Assembly ………………………………………..... WD21-06 Pipe Crossing Canal/Creek ………………………………………..... WD21-09 Pipe Crossing Culvert ………………………………………..... WD21-11 Thrust Blocks …………………………………………. WD21-12A Pipe in Road Crossings …………………………………………. WD21-14 Service Connection …………………………………………. WD21-15 Elevated Reinforced Concrete Water Tank …………………………………………. RCR21-01 Elevation Plan …………………………………………. RCR21-02 Typical Foundation Plan …………………………………………. RCR21-03 Typical Footing Details …………………………………………. RCR21-04 Sectional View Tank Dimension & Details of Joints …………………………………………. RCR21-05 Top Slab Reinforcement Details …………………………………………. RCR21-06 Wall Reinforcement Details …………………………………………. RCR21-07 Bottom Slab Reinforcement Details …………………………………………. RCR21-08 Typical Supporting Beam Details …………………………………………. RCR21-09 Brace Beam Reinforcement Details …………………………………………. RCR21-10 Water Level Indicator Details …………………………………………. RCR21-11
Table of Contents COMPONENT SHEET NO. Construction Joint Details ……………………………………….… RCR21-12 Manhole Cover Details …………………………………………. RCR21-13 Elevated Steel Water Tank Elevation and Foundation Plan …………………………………………. ESR21-01 Foundation Plan and Section Details …………………………………………. ESR21-02 Column Bracing and Manhole Details …………………………………………. ESR21-03 Appurtenances Details …………………………………………. ESR21-04 Public Stand Post …………………………………………. PS21-01 Public Toilet Facility …………………………………………. PTF21-01 Low-Cost Private Toilet …………………………………………. PTF21-10 Rainwater Collector …………………………………………. PTF21-11
SCHEMATIC DIAGRAM OF A WATER SUPPLY SYSTEM
Department of the Interior and Local Government Office of Project Development Services Deep Well
Water Source There are a lot of studies and field reports of several newly constructed wells in the country, among the common problems noted are insufficient quantity /yields, poor quality of water and seasonal or unreliable water supply. The reported worst cases were dried or failed wells which have wasted the LGU’s limited resource. These problems can be traced back to poor well site selection and construction. Thus, it is important that well sites be carefully assessed and selected prior to well drilling, and proper construction methodology be observed to ensure desired quality and quantity of water. Identification of the appropriate site for well construction dictates the success of drilling/ well construction. Choosing the well site location does not only means looking for the site with the best water supply potential but also looking for the site that is protected from any source of contaminants and pollutants. Also, we have to keep in mind during the entire period of well planning and construction that our objective is to have a safe and sustainable potable water source for the daily use of the community, regardless of season. Groundwater - Groundwater is that portion of rainwater which has percolated beneath the ground surface to form underground deposits called aquifers. The upper surface of groundwater is the water table. Groundwater is often clear, free from organic matter and bacteria due to the filtering effect of soil on water percolating through it. However, groundwater almost always contains minerals dissolved from the soil. Groundwater is often better in quality than surface waters, less expensive to develop for use, and usually provides more adequate supply in many areas in the country. For rural water supply systems, groundwater is generally preferred as a water source. The types and extraction methods are as follows: Spring – is a point where groundwater flows out of the ground, and is thus where the aquifer surface meets the ground surface. A spring may be ephemeral (intermittent) or perennial (continuous). Springs can be developed by enlarging the water outlet and constructing an intake structure for water catchment and storage. Well – is a hole constructed by any method such as digging, driving, boring, or drilling for the purpose of withdrawing water from underground aquifers. Wells can vary greatly in depth, water volume and water quality. Well water typically contains more minerals in solution than surface water and may require treatment to soften the water by removing minerals such as arsenic, iron and manganese. Infiltration Galleries/Wells – Infiltration galleries are horizontal wells, constructed by digging a trench into the water-bearing sand and installing perforated pipes in it. Water collected in these pipes converges into a “well” from which it is pumped out
Bronze Non-Return Valve Pressure Gauge Bronze Gate Valve Flow Meter G.I. Union Well Head Steel 45° G.I. Elbow Plate Support (See Details) 1.0M GROUND LEVEL GRAVEL TUBE Welded G.I. Pipe DN20 0.60 x 0.60 x 0.15 (min) w/ End Cap APRON (Sounding Tube) Electric Submersible Pump Set WELL HEAD 30mm Ø Hole for Pump Wires & Cable 50mm 220mm DETAIL WELL HEAD STEEL SUPPORT Title Department of the Interior and Local Government TYPICAL WELL HEAD Office of Project Development Services (2\" Dia. Below Supply Pipe) Drawn by: Reviewed by: Sheet No. Engr. C. O. De Ocampo DW21-01 September 2021
C.I./D.I. Gate Valve C.I./D.I. Non-Return Valve Pressure Gauge 45° C.I. Elbow Flow Meter Well Head Steel Plate Support (See Details) 1.0M GRAVEL TUBE GROUND LEVEL 0.60 x 0.60 x 0.15 (min) APRON Welded G.I. Pipe DN20 Electric Submersible Pump Set w/ End Cap WELL HEAD (Sounding Tube) 30mm Ø Hole for Pump Wires & Cable 50mm 220mm DETAIL WELL HEAD STEEL SUPPORT Title Department of the Interior and Local Government TYPICAL WELL HEAD OOfffiiccee ooff PPrroojjeecctt DDeevveellooppmmeenntt SSeerrvviicceess (3\" Dia. Above Supply Pipe) Drawn by: Reviewed by: Sheet No. Engr. C. O. De Ocampo DW21-01A September 2021
SOUNDING TUBE GRAVEL PACKED TUBE 1.0M (min) w/ END CAP, DN25 w/ END CAP DN25 or 1.0M Above Potential SOUNDING TUBE CONCRETE BASE Flood Level w/ END CAP, DN25 (600 x 600mm) GROUND LEVEL SANITARY SEAL (CEMENT GROUT) 10.0M (min) WELL-CASING CENTRALIZER: METAL (uPVC or STEEL) 4cm x 30cm, 4 pcs. ea LEVEL 6\"Ø (min) WIRE WOUND STAINLESS SCREEN OR SLOTTED CASING ACTUAL SETTING OF SCREEN WILL DEPENDS SUMP PIPE w/ OF SOIL FORMATION AND CLOSE BOTTOM RESULT OF DRILLING & ELECTRIC LOG, IF ANY. CEMENT PLUG OR WELDED BOTTOM PLATE STANDARD WELL DESIGN Title Department of the Interior and Local Government STANDARD WELL DESIGN Office of Project Development Services Drawn by: Reviewed by: Sheet No. Engr. C. O. De Ocampo DW21-02 September 2021
Department of the Interior and Local Government Office of Project Development Services Spring Box
Springs Springs are outcrops of groundwater that often appear as small water holes or wet spots at the foot of hills or along river banks. To obtain satisfactory water, it is necessary to find the source, properly develop it, eliminate surface water intrusion, and prevent animals from gaining access to the spring. There should be no immediate upstream settlements, as these would pose the risk of biological contamination. In all cases, a spring should be protected from surface-water pollution by the construction of a deep diverting ditch or equivalent above and around it. The spring and the collecting basin should have a watertight top, preferably concrete, and water obtained by gravity flow. Covers for inspection manholes, when provided, should be tightly fitted and kept locked. If the water flows to the spring head through limestone or similar types of fissured rock channels, it is unlikely to have undergone natural filtration and purification to any appreciable extent. Hence, it likely carries pollutants from nearby or distant places. Under these circumstances, it is advisable to have periodic bacteriological examinations and to chlorinate the water. Basic Design Features of a Spring Box Although there are many different designs for spring boxes, they all share common features. Primarily, a spring box is a watertight collecting box constructed of concrete, clay, or brick with one permeable side. The idea behind the spring box is to isolate spring water from surface contaminants such as rainwater or surface runoff. All spring boxes should be designed with a heavy, removable cover in order to prevent contamination from rainwater while providing access for disinfection and maintenance. Spring box design should include an overflow pipe that is screened for mosquito and small animal control. It is also important to provide some measure of erosion prevention at the overflow pipe.
VARIABLE 0.60 DRAINAGE AIR VENT OVERFLOW PIPE SUPPLY PIPE RAISED MANHOLE 0.60 DRAIN PIPE w/ LOCK VARIABLE0.60 PLAN DRAINAGE AIR VENT RAISED MANHOLE EYE OF THE SPRING OVERFLOW PIPE (0.10m, min. Lower TO BE GROUTED AND PLASTERED WITH than the Spring Eye)) MORTAR EXCEPT AT THE EYE OF THE SPRING. EYE OF THE SPRING TO BE ENLARGE (REMOVE 0.15 SUPPLY PIPE SILT, ROCK, ETC., BUT DO NOT DISTURB DRAIN PIPE UNDERGROUND ROCK FORMATIONS. PLACE VARIABLE STONES AGAINTS EYE TO PREVENT EROSION. NOTE: ELEVATION SEE PIPING DETAILS ON SHEET SCB 21-06 Title Department of the Interior and Local Government SPRING TYPE \" A \" Office of Project Development Services SPRING COLLECTION BOX Drawn by: Reviewed by: Sheet No. (SPRING BOX DOWNHILL OF SPRING) Engr. C. O. De Ocampo September 2021 SCB21-02 SPRING COLLECTION BOX
VARIABLE 0.60 AIR VENT OVERFLOW PIPE SUPPLY PIPE DRAINAGE DRAIN PIPE RAISED MANHOLE VARIABLE w/ LOCK 0.60 0.60 0.60 AIR VENT RAISED MANHOLE w/ LOCK DRAINAGE OVERFLOW PIPE SUPPLY PIPE EYE OF THE SPRING DRAIN PIPE TO BE PLASTERED WITH MORTAR EXCEPT AT THE EYE OF THE SPRING. EYE OF THE SPRING TO BE ENLARGE (REMOVE SILT, ROCK, ETC., BUT DO NOT DISTURB UNDERGROUND ROCK FORMATIONS. PLACE STONES AGAINTS EYE TO PREVENT EROSION. NOTE: SEE PIPING DETAILS ON SHEET SCB 21-06 Title Department of the Interior and Local Government SPRING TYPE \" B \" Office of Project Development Services SPRING COLLECTION BOX Drawn by: Reviewed by: Sheet No. (SPRING FLOWS ALMOST @ GROUND LEVEL) Engr. C. O. De Ocampo SCB21-03 September 2021 SPRING COLLECTION BOX
B AIR VENT A OVERFLOW PIPE STEEL PLATE MANHOLE COVER SUPPLY PIPE 0.60M DRAIN PIPE B MANHOLE COVER DET. PLAN 0.60 AIR VENT AIR VENT EYE OF THE SPRING MANHOLE MANHOLE w/ LOCK w/ LOCK OVERFLOW PIPE OVERFLOW PIPE SUPPLY PIPE SUPPLY PIPE DRAIN PIPE DRAIN PIPE SECTION A - A SECTION B - B NOTE: SEE PIPING DETAILS ON SHEET SCB 21-06 Title Department of the Interior and Local Government SPRING TYPE \" C \" Office of Project Development Services SPRING COLLECTION BOX Drawn by: Reviewed by: Sheet No. (SPRING INSIDE CAVERN / CAVE) Engr. C. O. De Ocampo September 2021 SCB21-04 SPRING COLLECTION BOX
VARIABLE 0.60 DRAINAGE SPRING AIR VENT OVERFLOW PIPE SPRING SUPPLY PIPE 0.60 DRAIN PIPE RAISED MANHOLE VARIABLE w/ LOCK 0.60 SPRING PLAN DRAINAGE MORTAR COVER PEA SIZE GRAVEL COARSE GRAVEL RAISED MANHOLE AIR VENT w/ LOCK OVERFLOW PIPE SIZE OF OPENING TO BE DETERMINED BY ENGINEER VARIABLE SUPPLY PIPE DRAIN PIPE NOTE: SEE PIPING DETAILS ON SHEET SCB 21-06 ELEVATION Title Department of the Interior and Local Government SPRING TYPE \" D \" Office of Project Development Services SPRING COLLECTION BOX Drawn by: Reviewed by: Sheet No. (SCATTERED SPRING) Engr. C. O. De Ocampo September 2021 SCB21-05 SPRING COLLECTION BOX
Side of Box 25mm G.I. Pipe Vent 25mm G.I. Pipe Nipple 25 mm G.I. Pipe 25mm G.I. Coupling w/ Screen 25 mm G.I. Pipe 25mm G.I. Pipe Elbow 25mm G.I. Pipe Nipple Top of Box 25mm G.I. Coupling w/ Screen 0.15TOP AIR VENT PIPE SIDE AIR VENT PIPE 0.10 Gate Valve G.I. Pipe G.I. Pipe Elbow G.I. Coupling w/ Screen G.I. Coupling w/ Screen FLOORING OF BOX SUPPLY PIPE OVERFLOW PIPE Gate Valve G.I. Pipe FLOORING OF BOX DRAIN PIPE Title Department of the Interior and Local Government SPRING COLLECTION BOX Office of Project Development Services MISCELANEOUS DETAILS Drawn by: Reviewed by: Sheet No. Engr. C. O. De Ocampo September 2021 SCB21-06 SPRING COLLECTION BOX
APRON DRAINAGE CHANNEL PERIMETER FENCE AIR VENT ACCESS MANHOLE 0.60 PERIMETER FENCE 0.60 0.60 VARIABLE PERIMETER FENCE VARIABLE OVERFLOW PIPE DRAIN PIPE SUPPLY PIPE PERIMETER FENCE NOTES: 1. ALL PIPES & FITTINGS ARE G. I. SCHEDULE 40. 2. SUPPLY PIPE & VALVE IS THE SAME SIZE WITH TRANSMISSION LINE. 3. NO WELDING ON PIPE IS ALLOWED. Title Department of the Interior and Local Government SPRING COLLECTION BOX Office of Project Development Services PIPE LAYOUT & PERIMETER FENCE Drawn by: Reviewed by: Sheet No. Engr. C. O. De Ocampo September 2021 SCB21-07 SPRING COLLECTION BOX
Department of the Interior and Local Government Office of Project Development Services Typical Hand Pump
Title Drawn by: ..\\..\\..\\OneDrive\\PERSONAL\\My Signature.jpg Reviewed by: Sheet No. THP21-01 TYPICAL DESIGN OF HAND PUMP OPDS-UPMO|WSS
Department of the Interior and Local Government Office of Project Development Services Hydraulic Ram Pump
Hydraulic Ram Pump Hydraulic ram pump is one of renewable energy technologies that is used to provide energy from water needed for irrigation and domestic purposes. It is a way to pump water from stream, creek, and other water sources with flowing water. The device which uses the kinetic energy of falling water to lift a lesser amount of water to higher elevation than the source. It can operate anytime as long as there is water flowing from a source. It does not need wind or sunshine or other sources of energy to operate. Components of a Hydraulic ram pump: Drive pipe (inlet pipe), Delivery pipe (outlet pipe), Check valves and Pressure vessel.
Title AIR CHAMBER RAM PUMP Drawn by: PRESSURE GAUGE CHECK VALVE Engr. C. O. De Ocampo OUTFLOW PIPE (SWING TYPE) September 2021 GATE VALVE INFLOW PIPE DIY RAM PUMP CHECK VALVE (SPRING TYPE) Reviewed by: Department of the Interior and Local Government Ram Performance Data for a Supply of 1 liter/minute Liters Delivered over 24 Hours Office of Project Development Services Lift - Vertical Height to which Water is Raised Above the Ram (m) Working Fall (m) 5.0 7.5 10 15 20 30 40 50 144 77 65 33 1.0 135 96.5 70 29 19.5 12.5 1.5 220 156 105 2.0 54 36 19 15 2.5 3.0 79 53 33 25 3.5 4.0 280 200 125 100 66 40.5 32.5 5.0 Sheet No. 6.0 260 180 130 87 65 51 HRP21-01 215 150 100 75 60 HYDRAULIC RAM PUMP 255 173 115 86 69 310 236 155 118 94 282 185 140 112
WASTE WATER AIR CHAMBER CHECK VALVE PRESSUDE GAUGE GATE VALVE OUTFLOW PIPE CHECK VALVE INFLOW PIPE DIY RAM PUMP Title Department of the Interior and Local Government RAM PUMP Office of Project Development Services Drawn by: Reviewed by: Sheet No. Engr. C. O. De Ocampo HRP21-02 September 2021 HYDRAULIC RAM PUMP
Title Ram Performance Data for a Supply of 1 liter/minute Liters Delivered over 24 Hours RAM PUMP Lift - Vertical Height to which Water is Raised Above the Ram (m) Water Tank Working Fall (m) 5.0 7.5 10 15 20 30 40 50 1.0 144 77 65 33 29 19.5 12.5 1.5 2.0 135 96.5 70 54 36 19 15 2.5 3.0 220 156 105 79 53 33 25 3.5 4.0 280 200 125 100 66 40.5 32.5 5.0 6.0 260 180 130 87 65 51 215 150 100 75 60 255 173 115 86 69 310 236 155 118 94 282 185 140 112 Drawn by: GENERAL FORMULA: Engr. C. O. De Ocampo (Q x F X E) Lift September 2021 D= L Department of the Interior and Local Government Collection Box Office of Project Development Services where: Reviewed by: RAM PUMP D - Amount of water delivered in 24hrs. (See Details) Q - Quantity of water supplied @ source in LPM F - The fall or height of source above the RAM PUMP Fall L - The lift height of the point of use above the ram in meters. E - Efficiency 0.66 for commercial model 0.33 for home built Sheet No. HRP21-03 HYDRAULIC RAM PUMP
Department of the Interior and Local Government Office of Project Development Services Appurtenances
Fire Hydrants A fire hydrant is a connection point by which firefighters can tap into a water supply. It is a component of active fire protection. Fire hydrants are mainly used for fire protection. Other uses include flushing water mains and sewers, and filling tank trucks for street washing and tree spraying. Hydrants may also be used as a temporary water source for construction jobs.
100mm (4\") x 63mm ( 2 21\") 0.45 to 0.60 ANGLE FIRE HYDRANT VALVE (SEE SPECIFICATIONS) 0.60 SQ. CONCRETE PAD IN NON-SIDEWALK AREAS 100mm (4\") FLANGED 100mm (4\") FABRICATED 90° ELBOW GATE VALVE 100mm (4\") STEEL PIPE (12GA) W/ TEE WITH FLANGED BRANCH CEMENT MORTAR LINING & COATING NOTES : 1. ALL DIMENSIONS ARE IN METERS EXCEPT WHERE OTHERWISE SHOWN. 2. WHERE NO CURBS OR GUTTERS EXIST, THE HYDRANTS SHALL BE LOCATED WITHIN 1.50M OF THE ROAD RIGHT-OF-WAY OR AS DIRECTED BY THE ENGINEER & BARRICADES SHALL BE INSTALLED. 3. HYDRANTS AT INTERSECTIONS SHALL BE AT THE CURB RETURN. OTHER THAN STREET INTERSECTION, HYDRANTS SHALL BE INSTALLED ON LOT LINES. 4. HYDRANTS SHALL BE PAINTED IN ACCORDANCE WITH THE SPECIFICATIONS. COLOR SHALL BE YELLOW UNLESS OTHERWISE DIRECTED BY THE OWNER 5. WELD ALL JOINTS EXCEPT WHERE OTHERWISE SHOWN Title Department of the Interior and Local Government FIRE HYDRANT INSTALLATION Office of Project Development Services (LWUA Standard Drawing) Drawn by: Reviewed by: Sheet No. Engr. C. O. De Ocampo September 2021 FH21-01 FIRE HYDRANT
0.15 EDGE OF ROADWAY BARRICADE 25mm CHAMFER (TYP) 30° OUTLET (COMM'L TYPE) 100mm 1.00M 0.15 30° 63mm OUTLET (COMM'L TYPE) GROUND LEVEL 0.63 (Typ) 4 - 16mmØ BARS w/ 10mm TIES @ 0.20M o.c. PLAN FOR SETTING BARRICADE 1.20M 0.15 X 0.15 CONCRETE POST BARRICADE ELEVATION OF CONCRETE BARRICADE Title Department of the Interior and Local Government FIRE HYRANT BARRICADE INSTALLATION Office of Project Development Services (LWUA Standard Drawing) Drawn by: Reviewed by: Sheet No. Engr. C. O. De Ocampo FH21-02 September 2021 FIRE HYDRANT
Department of the Interior and Local Government Office of Project Development Services Transmission and Distribution Lines
Transmission and Distribution Lines Transmission and distribution systems vary in size and complexity but they all have the same basic purpose, which is to deliver water from the source(s) to the costumer. Transmission lines (pipes) = a component of a water system that transport water from the water source to the reservoir/water tank either by pumping or by gravity. Note: No household connections shall be attached or connected to avoid pressure disturbance. Distribution lines (pipes) = a component of a water system that transport water from the reservoir/water tank to the distribution network either by pumping or by gravity. Trench The trench for underground pipelines should be kept as narrow and shallow as practical for safety and economic considerations. Governing factors / specifications for designing trench width and depth: 1.Pipe size 2.Safety considerations; 3.Economic considerations; 4.Minimize the superimposed loading on the pipe; 5.Surface restoration requirements; 6.Future changes in ground surface elevations due to construction or erosions. The recommended depth of trench is 0.75 m where surface loads is encountered[2]. The recommended depth is compliance to DPWH D.O No. 26 s. 2011 (Policy on Diggings/Excavations by Private and Public Utilities on National Roads) wherein it requires 0.60 m below pavement on areas where there are no existing drainage. Trench should be located / constructed 1 meter beyond from the drainage system. Excavation permits should have been secured from the agencies that have jurisdiction over the trench line. Valve = is a device that can be opened and closed to different extents to vary its resistance to flow, thereby controlling the movement of water through a pipeline. Valve box Are used to isolate sections of the water mains for purposes of maintenance and repair works.
Trench Width Trench Width \"W\" \"W\" 0.60 (min) 0.15 VARIABLE 1 COMPACTED 1 COMPACTED SELECTED NATIVE SELECTED NATIVE MATERIAL BACKFILL MATERIAL BACKFILL 2 COMPACTED 3 APPROVED SAND SELECTED NATIVE BEDDING AND MATERIAL BACKFILL BACKFILL HANDPLACED AND NORMAL INSTALLATION COMPACTED WHERE SAND BEDDING/ BACKFILL NOT REQUIRED IN ROCK OR WHEN ORDERED BY ENGINEER NOTES: 1. ALL DIMENSIONS ARE IN METERS UNLESS OTHERWISE SHOWN. 2. SPACE SHALL BE PROVIDED FOR PIPE JOINTS TO PREVENT BRIDGING TABLE OF TRENCH DIMENSION (IN METERS) PIPE DIAMETER inch 3\" & under 4\" 6\" 8\" 10\" 12\" mm 75mm & under 100 150 200 250 300 MINIMUM \" W \" 0.40 0.45 0.50 0.55 0.60 MAXIMUM \" W \" 0.20 0.70 0.75 0.80 0.85 0.90 0.30 Title Department of the Interior and Local Government TRENCHING, EXCAVATION & BACKFILLING Office of Project Development Services Drawn by: Reviewed by: Sheet No. Engr. C. O. De Ocampo WD21-01 September 2021 WATER DISTRIBUTION
HINGED CAST IRON FRAME & COVER MARKED \" W \". W 0.60 (min) 0.60 0.60VALVE BOX COVER 0.100.80 0.10 BRONZE GATE VALVE MALE ADAPTOR PE PIPE PLAN 50mm THK (min) CONCRETE COVER HINGED & CAST IRON FRAME & GROUND LEVEL COVER MARKED \" W \". 4\" LOAD BEARING CHB BRONZE GATE VALVE MALE ADAPTOR PE PIPE NOTES: SECTION 1. ALL DIMENSIONS ARE IN METERS UNLESS OTHERWISE SHOWN. 2. VALVES BOX SHALL HAVE A MINIMUM COVER OF 50MM w/ 10mm REINFORCEMENT @ 150mm O.C. BOTHWAYS. 3. APPROVED COMPRESSION MALE ADAPTOR IS TO USED TO CONNECT GATE VALVE AND PE PIPES. Title Drawn by: Reviewed by: Sheet No. Engr. C. O. De Ocampo VALVE BOX & September 2021 WD21-02 BRONZE GATE VALVES INSTALLATION WATER DISTRIBUTION 2 1/2\" Dia. and SMALLER
W W 150mm 32mm 0.50 PLAN 0.90m Ø CONCRETE PAD IN GRAVEL OR DIRT 0.15 GROUND LEVEL ROADWAYS & OUTSIDE HINGED CAST IRON OF TRAVELLED FRAME & COVER 0.75m (min)CRUSHED ROCK ROADWAYS VARIABLE MARKED \" W \" 0.10m (max) VARIABLE AROUND & 50mm SQUARE 150mm (min) 150mm CL 150 PVC OPERATING NUT WATER PIPE ABOVE VALVE VALVE STEM EXTENSION. WHERE DEPTH OF OPERATING NUT EXCEED 1.50m 150mm CL 150 PVC WATER PIPE GATE VALVE WATER MAIN UNDISTURBED 12mm REBAR AROUND 125mm CL 150 PVC EARTH VALVE WATER PIPE CONCRETE BLOCK FOR DETAILS 200mm VALVE & LARGER SECTION NOTES: 1. ALL DIMENSIONS ARE IN METERS UNLESS OTHERWISE SHOWN. 2. VALVES SHALL HAVE A MINIMUM COVER OF 0.30M MEASURED TO THE TOP OF THE OPERATING NUT. 3. VALVES SHALL BE INSTALLED ON EXTENSION OF PROPERTY LINES EXCEPT WHERE OTHERWISE SHOWN OR SPECIFIED. 4. USE FLANGED END GATE VALVES ON STEEL AND PVC PIPELINE INSTALLATION 5. CAST IRON OR STEEL COVER SHALL BE ADEQUATELY DESIGNED TO CARRY TRAFFIC LOADS 6. CONCRETE BLOCKS MAYBE OMITTED ON WELDED STEEL PIPELINES AT OPTION OF CONTRACTOR. Title Department of the Interior and Local Government INSTALLATION OF BURIED GATE VALVE Office of Project Development Services 300mm and SMALLER Drawn by: Reviewed by: Sheet No. Engr. C. O. De Ocampo WD21-03 September 2021 WATER DISTRIBUTION
4-12Ø Ring Bars w/ 0.30 12-10Ø Ties @150 o.c. UNPAVED / ASPHALT SURFACE CONCRETE PAVED SURFACE 0.15 0.90 x 0.90 18-12mm TIES CONCRETE PAD 2-12mm RING BARS 0.15 VARIES SLIDE TYPE VALVE BOX (See Detail \" 1 \") 0.15 - 0.20 GATE VALVE NOTES: 1. IN CASE WHERE THE WIDTH OF PAVEMENT RESTORATION IS LESS THAN 900mm A RECTANGULAR PAD MAY BE PROVIDED WITH WIDTH EQUAL TO THE WIDTH OF PAVEMENT RESTORATION. Title Department of the Interior and Local Government INSTALLATION OF BURIED GATE VALVE Office of Project Development Services (Maynilad Standard Drawing) Drawn by: Reviewed by: Sheet No. Engr. C. O. De Ocampo September 2021 WD21-04A WATER DISTRIBUTION
PROVIDE DEBRIS SHIELD (See Detail) 16mmØ STAINLESS PIN DIMENSIONS (mm) 0.125 SIZE OF PIPE A BC D 0.20 GATE VALVE COVER 50 750 500 400 200 150 75 750 600 500 200 150 0.50 0.10 100 750 700 600 200 150 0.40 150 900 900 700 250 200 Max. Adjustment \" A \" 200 900 900 800 250 200 \"B\" 250 900 1000 900 250 200 300 1200 1100 1000 300 200 12mm D NOTES: 1. CAST IRON CONFORMING TO ASTM A-48 CLASS 30 C. 2. STAINLESS STEEL CONFORMING TO ASTM 276 CLASS 304 0.20 (max) 0.50 0.50 \"C\" SECTIONAL ELEVATION SEE HINGE DETAIL SEE LOCK ASSEMBLY DETAIL W TOP VIEW OF FRAME Title Department of the Interior and Local Government INSTALLATION OF BURIED GATE VALVE Office of Project Development Services (Maynilad Standard Drawing) Drawn by: Reviewed by: Sheet No. Engr. C. O. De Ocampo WD21-04B September 2021 WATER DISTRIBUTION
50mm 60mm STAINLESS STEEL HINGE PIN HINGE DETAIL 14 BRASS WASHER 20 14 ECCENTRIC LOCKING PIECE S.S. CUT WASHER HEXAGON NUT LOCK ASSEMBLY Title Department of the Interior and Local Government INSTALLATION OF BURIED GATE VALVE Office of Project Development Services (Maynilad Standard Drawing) Drawn by: Reviewed by: Sheet No. Engr. C. O. De Ocampo WD21-04C September 2021 WATER DISTRIBUTION
0.60 L-SHAPED PIPE TO BE CONNECTED ONLY PLAN WHEN FLUSHING GATE VALVE 0.60 (min) PLASTIC PIPE 0.60 ADAPTOR G. I. PIPE HANDLE L-SHAPED PIPE TO BE CONCRETE COVER CONNECTED ONLY WHEN FLUSHING GATE VALVE GROUND LEVEL 4\" CHB PLUG-IN WHEN NOT IN USE G. I. COUPLING 10mm ANCHOR BAR PLASTIC PIPE G.I. PIPE GRAVEL ADAPTOR SECTION NOTES: 1. ALL DIMENSIONS ARE IN METERS UNLESS OTHERWISE SHOWN. 2. SIZE OF FLUSH PIPE TO MATCH SIZE OF MAIN LINE. 3. G. I. PIPES SHOULD BE SCHEDULE 40 Title Department of the Interior and Local Government END-OF-LINE BLOW-OFF ASSEMBLY Office of Project Development Services Drawn by: Reviewed by: Sheet No. Engr. C. O. De Ocampo September 2021 WD21-05 WATER DISTRIBUTION
b L-SHAPED PIPE TO BE CONNECTED ONLY 600 WHEN FLUSHING GATE VALVE MAIN LINE a 0.60 (min) ADAPTOR 0.60 PLAN CONCRETE COVER HANDLE L-SHAPED PIPE TO BE HANDLE PLUG-IN WHEN CONNECTED ONLY NOT IN USE WHEN FLUSHING GROUND LEVEL 4\" CHB 10mm ANCHOR BAR GATE VALVE MAIN LINE ADAPTOR GRAVEL GRAVEL MAIN LINE SECTION \" a \" SECTION \" b \" NOTES: 1. ALL DIMENSIONS ARE IN METERS UNLESS OTHERWISE SHOWN. 2. SIZE OF FLUSH PIPE TO MATCH SIZE OF MAIN LINE. 3. G. I. PIPES SHOULD BE SCHEDULE 40 Title Department of the Interior and Local Government IN-LINE BLOW-OFF ASSEMBLY Office of Project Development Services Drawn by: Reviewed by: Sheet No. Engr. C. O. De Ocampo September 2021 WD21-06 WATER DISTRIBUTION
L-SHAPED PIPE TO BE CONNECTED ONLY WHEN FLUSHING 0.40 G. I. PLUG G. I. COUPLING CONCRETE (0.60 x 0.60) GATE VALVE STANDARD VALVE BOX G. I. PIPE COMPANION FLANGE FABRICATED 90° ELBOW SECTION TEE WITH FLANGED BRANCH NOTES: STANDARD VALVE BOX 1. ALL DIMENSIONS ARE IN C. I. GATE VALVE METERS UNLESS OTHERWISE C. I. COMPANION FLANGE SHOWN. G. I. PIPE C. I. FLANGE ADAPTOR 2. SIZE OF FLUSH PIPE TO MATCH SIZE OF MAIN LINE. uPVC MAINLINE 3. G. I. PIPES SHOULD BE SCHEDULE 40 C. I. COMPANION FLANGE uPVC MAINLINE C. I. TEE C. I. FLANGE ADAPTOR PLAN Title Department of the Interior and Local Government IN-LINE BLOW-OFF ASSEMBLY Office of Project Development Services (100mm and Above Mainline) Drawn by: Reviewed by: Sheet No. Engr. C. O. De Ocampo September 2021 WD21-07 WATER DISTRIBUTION
EXPOSED GATE VALVE MAIN LINE FLUSHING PIPE PLAN EXPOSED MAIN LINE EXPOSED FLUSHING PIPE MAIN LINE NOTES: ELEVATION 1. G. I. PIPES SHOULD BE SCHEDULE 40. 2. LENGTH OF FLUSHING PIPE IS TO BE APPROVED BY THE ENGINEER. 3. PROVIDE SITE DRAINAGE TO AVOID STANDING WATER. 4. THIS ARRANGEMENT CAN BE DONE ONLY WITH THE APPROVAL OF THE ENGINEER. Title Department of the Interior and Local Government IN-LINE BLOW-OFF ASSEMBLY Office of Project Development Services (for exposed G.I. Pipes) Drawn by: Reviewed by: Sheet No. Engr. C. O. De Ocampo WD21-08 September 2021 WATER DISTRIBUTION
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