reglab/statecodes huggingface dataset:
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-272C - On-site Sewage System Tanks › SEWAGE TANK APPROVALS AND REGISTERED LIST REQUIREMENTS › Section 246-272C-0160 - Post-construction cast-in-place tank requirements

Current through Register Vol. 24-14, July 15, 2024
If the department approves the design and construction plan
					 and authorizes construction, the design engineer shall:
(1) Conduct a post-construction inspection of
				  the completed cast-in-place tank;
(2) Verify all applicable requirements were
				  satisfied;
(3) Verify all
				  excavation, backfill, and compaction conform to the project's approved design
				  and construction plan and specifications; and
(4) Verify construction is complete and
				  submit a construction certification to the department prior to use.
Statutory Authority: RCW 43.20.050(2) and (3). 09-23-119,
						§ 246-272C-0160, filed 11/18/09, effective
						12/19/09.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-272C - On-site Sewage System Tanks › DESIGN AND CONSTRUCTION REQUIREMENTS › Section 246-272C-0200 - Design drawing requirements for sewage tanks

Current through Register Vol. 24-14, July 15, 2024
(1) The design engineer shall submit
				  calculations to the department that demonstrate the tank withstands all
				  structural, hydraulic, hydrostatic, earth, and any anticipated traffic loads,
				  including, but not limited to, those loads specified in WAC
				  246-272C-0210. The drawings must
				  specify and show in an obvious place the tank design load limits, including the
				  maximum traffic loading and earth loading.
(2) Drawings of the sewage tank must be
				  complete and show all dimensions, capacities, reinforcement, structural
				  calculations, and other data requested by the department. The drawings must be
				  drawn to scale and show:
(a) A side section
				  view of the tank with details on inlets, outlets, and any intercompartmental
				  devices;
(b) Material
				  specifications;
(c) A plan and side
				  section view of the tank showing the dimensions, including thickness of various
				  portions of the tank;
(d)
				  Reinforcement details;
(e) The size
				  and location of all inspection and maintenance access, and inlet and outlet
				  openings in the tank;
(f) The
				  number of compartments;
(g) The
				  liquid capacity of each compartment in the tank; and
(h) The excavation, backfill, compaction,
				  depth of bury, bedding and installation requirements.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-272C - On-site Sewage System Tanks › DESIGN AND CONSTRUCTION REQUIREMENTS › Section 246-272C-0210 - General design and construction requirements - Sewage tanks

Current through Register Vol. 24-14, July 15, 2024
(1)
Sewage
				  tank loads.
Sewage tanks must be designed and constructed to withstand
				  all structural, hydraulic, hydrostatic, earth loads, and any anticipated
				  traffic loads. They must be designed and constructed so they:
(a) Do not collapse, deform, or crack when
				  subjected to the anticipated loads when the tanks are either full or
				  empty;
(b) Support a dead load
				  equivalent to at least three feet of earth cover with a unit density of at
				  least 110 lb/ft3 and a 2,500
				  lbf/wheel load concentration over the critical elements
				  of the tank. Tanks installed with more than three feet of earth cover must be
				  reinforced to support the additional load;
(c) Account for minimum hydrostatic load of
				  62.4 lbs/ft3 and support earth backfill and
				  hydrostatic pressures. Minimum lateral load calculations must include pressures
				  due to effective weight of adjacent earth backfill and hydrostatic loads
				  assuming the water table is at ground level;
(d) Allow for septage pumping during high
				  groundwater conditions. Internal hydrostatic pressures must be included in the
				  calculations to allow for septage pumping during high groundwater conditions
				  assuming a water table is at ground level;
(e) Counteract buoyancy effects, assuring an
				  adequate flotation safety factor in high groundwater areas. The design engineer
				  shall submit to the department calculations to demonstrate the tank's ability
				  to counteract buoyancy effects and include this information as part of the
				  sewage tank installation instructions; and
(f) Withstand a wheel load of 16,000
				  lbf/wheel with fourteen feet axle spacing consistent
				  with a HS20-44 loading as designated by AASHTO, if designed as a "traffic
				  bearing tank."
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-272C - On-site Sewage System Tanks › DESIGN AND CONSTRUCTION REQUIREMENTS › Section 246-272C-0220 - Additional requirements for septic tanks

Current through Register Vol. 24-14, July 15, 2024
(1)
Septic tank compartments.
Septic tanks must be designed and constructed with a minimum of two
				  compartments. This standard may be met by one tank with two compartments or by
				  two single compartment tanks in series.
(a)
				  The capacity of the first compartment must accommodate at least one half but no
				  more than two thirds of the total required liquid volume; and
(b) The capacity of the second compartment
				  must accommodate the remaining total required liquid volume.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-272C - On-site Sewage System Tanks › DESIGN AND CONSTRUCTION REQUIREMENTS › Section 246-272C-0230 - Additional requirements for grease interceptor tanks

Current through Register Vol. 24-14, July 15, 2024
(1)
Grease interceptor
				  compartments.
Grease interceptor tanks must be designed and constructed
				  with a minimum of two compartments. This standard may be met by one tank with
				  two compartments or by two single compartment tanks in series.
(a) The capacity of the first compartment
				  must accommodate at least one half but no more than two thirds the total
				  required liquid volume; and
(b) The
				  capacity of the second compartment must accommodate the remaining total
				  required liquid volume.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-272C - On-site Sewage System Tanks › DESIGN AND CONSTRUCTION REQUIREMENTS › Section 246-272C-0240 - Additional requirements for pump tanks

Current through Register Vol. 24-14, July 15, 2024
(1) A sanitary tee or baffle is required when
				  effluent is pumped into the pump tank.
(2) The sanitary tee or baffle for a pump
				  tank must meet the following requirements:
(a) The inlet sanitary tee or baffle must be
				  installed on the inlet of the pump tank; and
(b) The inlet sanitary tee or baffle must
				  extend into the tank a minimum of eight inches below the invert elevation of
				  the inlet pipe.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-272C - On-site Sewage System Tanks › DESIGN AND CONSTRUCTION REQUIREMENTS › Section 246-272C-0245 - Additional requirements for trash tanks

Current through Register Vol. 24-14, July 15, 2024
(1) Trash tanks must be designed and
				  constructed for use as a pretreatment tank or compartment.
(2) Trash tank volume must not be used as
				  part of the calculations of the required septic tank volume.
Statutory Authority: RCW 43.20.050(2) and (3). 09-23-119,
						§ 246-272C-0245, filed 11/18/09, effective
						12/19/09.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-272C - On-site Sewage System Tanks › DESIGN AND CONSTRUCTION REQUIREMENTS › Section 246-272C-0250 - Identification

Current through Register Vol. 24-14, July 15, 2024
Manufacturers shall permanently identify each sewage tank.
					 The manufacturer shall display the following information on the top of each
					 tank near the inlet end of the tank or inside the riser if the riser is cast in
					 the tank:
(1) Manufacturer name or
				  logo;
(2) The tank's liquid
				  capacity in gallons;
(3) Maximum
				  burial depth;
(4) The date
				  manufactured or constructed; and
(5) The tank model number or serial number,
				  if available.
Statutory Authority: RCW 43.20.050(2) and (3). 09-23-119,
						§ 246-272C-0250, filed 11/18/09, effective
						12/19/09.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-272C - On-site Sewage System Tanks › WAIVERS, COMPLIANCE, AND ENFORCEMENT › Section 246-272C-0500 - Waiver of state regulations

Current through Register Vol. 24-14, July 15, 2024
(1)
				  The manufacturer or agent, or the design engineer may request a waiver in
				  writing, stating the reason for the waiver.
(2) The department may grant a waiver request
				  if it is consistent with the applicable standards and intent of these
				  rules.
(3) If the department
				  approves a waiver request, the department shall notify the requestor of the
				  decision in writing.
(4) If the
				  department denies a waiver request, the department shall notify the requestor
				  of the decision in writing stating the reasons for the denial.
Statutory Authority: RCW 43.20.050(2) and (3). 09-23-119,
						§ 246-272C-0500, filed 11/18/09, effective
						12/19/09.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-272C - On-site Sewage System Tanks › WAIVERS, COMPLIANCE, AND ENFORCEMENT › Section 246-272C-0520 - Enforcement

Current through Register Vol. 24-14, July 15, 2024
(1) The department
				  shall enforce the provisions of this chapter.
(2) When a person violates the provisions
				  under this chapter, the department or office of the attorney general may
				  initiate enforcement or disciplinary actions, or any other legal proceeding
				  authorized by law including, but not limited to, any one or a combination of
				  the following:
(a) Informal administrative
				  conferences, convened at the request of the department or tank manufacturer, to
				  explore facts and resolve problems;
(b) Orders directed to the tank manufacturer
				  or person causing or responsible for the violation of this chapter;
(c) Denial, suspension, modification, or
				  revocation of approvals or tank registration;
(d) The penalties under
				  RCW
				  43.70.190; and
(e) Civil or criminal action.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-272C - On-site Sewage System Tanks › WAIVERS, COMPLIANCE, AND ENFORCEMENT › Section 246-272C-0540 - Notice of decision - Adjudicative proceeding

Current through Register Vol. 24-14, July 15, 2024
(1) The department shall provide notice of
				  the denial, suspension, modification, or revocation of a registration,
				  certification, or approval consistent with
				  RCW
				  43.70.115, chapters 34.05 RCW and 246-10
				  WAC.
(2) A person contesting a
				  departmental decision regarding a registration, certificate, or approval may
				  file a written request for an adjudicative proceeding consistent with chapter
				  246-10 WAC.
Statutory Authority: RCW 43.20.050(2) and (3). 09-23-119,
						§ 246-272C-0540, filed 11/18/09, effective
						12/19/09.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-272C - On-site Sewage System Tanks › SEVERABILITY › Section 246-272C-0650 - Severability

Current through Register Vol. 24-14, July 15, 2024
If any provision of this chapter or its application to any
					 person or circumstances is held invalid, the remainder of this chapter, or the
					 application of the provision to other persons or circumstances shall not be
					 affected.
Statutory Authority: RCW 43.20.050(2) and (3). 09-23-119,
						§ 246-272C-0650, filed 11/18/09, effective
						12/19/09.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-273 - On-site sewage system additives › Section 246-273-001 - Purpose and authority

Current through Register Vol. 24-14, July 15, 2024
(1) This
				chapter establishes the review, criteria and decision-making procedures for
				evaluating on-site sewage disposal system additives to determine whether
				individual additives have an adverse effect on public health or water
				quality.
(2) The Washington state
				department of health administers this chapter under the authority and
				requirements of chapter 70A.105 RCW.
Statutory Authority: Chapter 70.118 RCW and
					 RCW
					 43.70.040. 95-24-062, § 246-273-001,
					 filed 12/1/95, effective 1/1/96.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-273 - On-site sewage system additives › Section 246-273-010 - Definitions

Current through Register Vol. 24-14, July 15, 2024
"Additive"
means a commercial product intended
				  to affect the performance or aesthetics of an on-site sewage disposal
				  system.
"Additive manufacturer"
means any person who
				  manufactures, formulates, blends, packages, or repackages an additive product
				  for sale, use, or distribution within Washington state.
"Approved"
means a written statement of
				  acceptability, in terms of the requirements of this chapter, issued by the
				  Washington state department of health.
"Chemical additive"
means those additives
				  containing acids, bases, or other chemicals deemed unsafe by the department for
				  use in an on-site sewage disposal system. Chemicals identified as unsafe are
				  specified in WAC
				  246-273-050.
"Department"
means the Washington State
				  Department of Health, P.O. Box 47826, Olympia, Washington 98504-7826.
"Failure"
means:
Effluent has been discharged on the surface of the ground
				  prior to approved treatment; or
Effluent has percolated to the surface of the ground;
				  or
Effluent has contaminated or threatens to contaminate a
				  groundwater supply.
"On-site sewage disposal system"
means any
				  system of piping, treatment devices, or other facilities that convey, store,
				  treat, or dispose of sewage on the property where it originates or on nearby
				  property under the control of the user where the system is not connected to a
				  public sewer system. For purposes of this chapter, an on-site sewage disposal
				  system does not include indoor plumbing and associated fixtures.
"Person"
means any individual, corporation,
				  company, association, society, firm, partnership, joint stock company, or any
				  governmental agency, or the authorized agents of any such entities.
"Sewage"
means any urine, feces, and the water
				  carrying human wastes, including kitchen, bath, and laundry wastes from
				  residences, buildings, industrial establishments or other
				  places.
Statutory Authority: Chapter 70.118 RCW and RCW 43.70.040.
					 95-24-062, § 246-273-010, filed 12/1/95, effective
					 1/1/96.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-273 - On-site sewage system additives › Section 246-273-020 - Applicability

Current through Register Vol. 24-14, July 15, 2024
(1) After July 1,
				1994, no person shall use, sell, or distribute an on-site sewage disposal
				system chemical additive in Washington state.
(2) After January 1, 1996, no person shall
				use, sell or distribute an on-site sewage disposal system additive whose
				ingredients have not been approved by the department in accordance with
				requirements of chapter 70A.105 RCW and this chapter.
Statutory Authority: Chapter 70.118 RCW and
					 RCW
					 43.70.040. 95-24-062, § 246-273-020,
					 filed 12/1/95, effective 1/1/96.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-273 - On-site sewage system additives › Section 246-273-030 - Additive review and approval application - Process and requirements

Current through Register Vol. 24-14, July 15, 2024
(1) Manufacturers
				desiring to sell, advertise, or distribute an on-site sewage disposal system
				additive for use in Washington state must request and obtain departmental
				review and approval of their product(s) by submitting a complete application,
				including:
(a) Comprehensive, yet concise,
				response to the questionnaire (see subsection (3) of this section);
(b) A product sample in the labeled container
				intended for sale or distribution;
(c) The on-site sewage disposal system
				additive evaluation fee described in WAC 246-273-990.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-273 - On-site sewage system additives › Section 246-273-040 - Review criteria and decision-making procedures

Current through Register Vol. 24-14, July 15, 2024
The department shall:
(1) Upon receipt of an application for review
				and approval of an on-site sewage disposal system additive:
(a) Determine if the application is complete.
				The department may return incomplete applications, suspending further review
				until a completed application is submitted. Processing time period begins anew
				with resubmittal.
(b) Notify the
				applicant, in writing, that the completed application has been received, and
				inform the applicant of the anticipated time period for review. A decision of
				either approval or denial shall be made within forty-five calendar days of
				receiving a complete application.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-273 - On-site sewage system additives › Section 246-273-060 - Unfair practices

Current through Register Vol. 24-14, July 15, 2024
Manufacturers of approved additives advertised, sold, or
				  distributed in Washington state shall:
(1) Make no claims relating to the
				elimination of the need for septic tank pumping or proper septic tank
				maintenance;
(2) List the
				components of additive products on the product label, along with information
				regarding instructions for use and precautions;
(3) Make no false statements, design, or
				graphic representation relative to an additive product that is inconsistent
				with RCW
				70A.105.060,
				70A.105.070, or
				70A.105.080; and
(4) Make no claims, either direct or implied,
				about the performance of the product based on state approval of its
				ingredients.
Statutory Authority: Chapter 70.118 RCW and
					 RCW
					 43.70.040. 95-24-062, § 246-273-060,
					 filed 12/1/95, effective 1/1/96.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-273 - On-site sewage system additives › Section 246-273-065 - Reregistration

Current through Register Vol. 24-14, July 15, 2024
Reregister, by written correspondence to the department,
				  their on-site sewage disposal system additive product(s) each time the product
				  formulation changes. The department may require a new review and approval for
				  reregistration of products that undergo formulation changes.
Statutory Authority: Chapter 70.118 RCW and RCW 43.70.040.
					 95-24-062, § 246-273-065, filed 12/1/95, effective
					 1/1/96.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-273 - On-site sewage system additives › Section 246-273-070 - Confidentiality

Current through Register Vol. 24-14, July 15, 2024
(1) Manufacturers
				shall submit a signed confidentiality statement if any information submitted
				would, if made public, divulge confidential business information, methods, or
				processes entitled to protection as trade secrets of the manufacturer, and
				identify any such information.
(2)
				The department shall not disclose any information obtained from manufacturers,
				when stated by the manufacturer, that the information, if made public, would
				divulge confidential business information, methods or processes entitled to
				protection as trade secrets of the manufacturer.
Statutory Authority: Chapter 70.118 RCW and RCW 43.70.040.
					 95-24-062, § 246-273-070, filed 12/1/95, effective
					 1/1/96.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-273 - On-site sewage system additives › Section 246-273-080 - Enforcement

Current through Register Vol. 24-14, July 15, 2024
(1) The attorney
				general, or appropriate city or county prosecuting attorney may bring
				appropriate action to enjoin any violation of the:
(a) Prohibition on the sale or distribution
				of on-site sewage disposal system additives; or
(b) Conditions of
				RCW
				70A.105.080 and WAC
				246-273-060(1) through
				(4).
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-274 - Greywater reuse for subsurface irrigation › Section 246-274-001 - Purpose - Intent

Current through Register Vol. 24-14, July 15, 2024
(1) The purpose of
				this chapter is to establish requirements that provide building owners with
				simple, cost-effective options for reusing greywater for subsurface
				irrigation.
(2) This chapter is
				intended to encourage water conservation and to protect public health and water
				quality.
Statutory Authority: RCW 90.46.015. 11-02-011, §
					 246-274-001, filed 12/28/10, effective
					 7/31/11.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-274 - Greywater reuse for subsurface irrigation › Section 246-274-003 - Applicability

Current through Register Vol. 24-14, July 15, 2024
(1) This chapter
				applies to greywater irrigation systems with design flows under three thousand
				five hundred gallons per day.
(2)
				This chapter does not apply to the reuse of greywater inside buildings
				regulated under the Uniform Plumbing Code as adopted in chapter 51-56
				WAC.
(3) This chapter does not
				apply to reclaimed water use facilities regulated under chapters 90.46 RCW and
				173-219 WAC.
Statutory Authority: RCW 90.46.015. 11-02-011, §
					 246-274-003, filed 12/28/10, effective
					 7/31/11.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-274 - Greywater reuse for subsurface irrigation › Section 246-274-005 - Other applicable requirements

Current through Register Vol. 24-14, July 15, 2024
(1)
				Greywater reuse must comply with all applicable local ordinances and codes, and
				state statutes and regulations including, but not limited to, the Uniform
				Plumbing Code, as adopted in chapters 51-56 and 51-57 WAC.
(2) For buildings using an on-site sewage
				system, the use of a greywater irrigation system does not change the design,
				capacity, or reserve area requirements, or any other requirement applicable to
				on-site sewage systems under
				RCW
				43.20.050, chapters 70A.115 RCW, or 246-272A,
				246-272B, or 246-272C WAC.
(3) The
				use of a greywater irrigation system does not serve as an alternative to the
				use of an approved on-site sewage system or connection to an approved public
				sewer for greywater disposal at any building, including buildings using
				waterless toilets.
Statutory Authority:
					 RCW
					 90.46.015. 11-02-011, § 246-274-005,
					 filed 12/28/10, effective 7/31/11.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-274 - Greywater reuse for subsurface irrigation › Section 246-274-007 - Administration

Current through Register Vol. 24-14, July 15, 2024
(1) The local board
				of health and local health officer shall implement this chapter under authority
				of chapters 70.05, 70.08 and 70.46 RCW, as applicable, no later than three
				years after the effective date of this chapter. During the period of time that
				a local board of health does not implement this chapter, the provisions of
				chapter 246-272A WAC shall apply to greywater reuse for subsurface irrigation
				in that jurisdiction.
(2) If a
				local board of health is unable to adjust its resources to implement and
				enforce this chapter in accordance with subsection (1) of this section, the
				provisions of chapter 246-272A WAC shall continue to apply to greywater reuse
				for subsurface irrigation in that jurisdiction.
(3) The local board of health is authorized
				to establish fees under
				RCW
				70.05.060 and the local health officer is
				authorized to collect fees under
				RCW
				70.05.070 to implement this
				chapter.
(4) Nothing in this
				chapter prohibits the adoption and enforcement of more stringent regulations by
				a local board of health.
Statutory Authority: RCW 90.46.015. 11-02-011, §
					 246-274-007, filed 12/28/10, effective
					 7/31/11.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-274 - Greywater reuse for subsurface irrigation › Section 246-274-009 - Definitions

Current through Register Vol. 24-14, July 15, 2024
The definitions in this section apply throughout this chapter
				  unless the context clearly requires otherwise.
(1) "Evapotranspiration rate" means the sum
				total of plant transpiration, evaporation off of the soil surface, and water
				used for plant growth.
(2)
				"Failure" means a condition of a greywater system or component that threatens
				the public health by creating a potential for contact between greywater and the
				public. Examples of failure include:
(a)
				Greywater on the surface of the ground;
(b) Greywater leaking from a storage
				tank;
(c) Inadequately treated
				greywater reaching ground water or surface water;
(d) Noncompliance with the installation
				permit; or
(e) Other noncompliance
				with the requirements of this chapter, as determined by the local health
				officer.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-274 - Greywater reuse for subsurface irrigation › Section 246-274-011 - Greywater irrigation systems-General requirements

Current through Register Vol. 24-14, July 15, 2024
(1) The following conditions and restrictions
				apply to all tiers of greywater irrigation systems:
(a) The greywater must be used only for
				subsurface irrigation.
(b) The
				greywater may be used for subsurface irrigation of plants that produce food but
				must not come into contact with edible portions of any plant.
(c) The greywater must consist of domestic
				type flows having the consistency and strength typical of greywater from
				domestic households.
(d) The
				greywater may not contain toxic substances, cleaning chemicals or hazardous
				household products derived from the waste from a water softener, activities
				such as cleaning car parts, washing greasy or oily rags or clothing, rinsing
				paint brushes, or disposing of waste solutions from home photo labs or similar
				hobbyist or home occupation activities, or from home maintenance
				activities.
(e) The greywater may
				not contain water used to wash diapers or similarly soiled or infectious
				materials.
(f) The greywater may
				not contain biomedical waste as defined in chapter 70A.228 RCW.
(g) The greywater may not surface in any way,
				including through ponding or runoff. It must remain below the surface of the
				ground so that people and animals do not come into contact with it.
(h) The greywater must be used and contained
				within the property boundary of the building it originates from or on nearby
				property where it is legally allowed to be used.
(i) The system may be used only during the
				growing season.
(j) The system must
				be located in suitable soil.
(k)
				The system must be located where the land is stable.
(l) The system may not be located in an
				environmentally sensitive area, as determined by the local health
				officer.
(m) The irrigation rates
				may not be greater than the evapotranspiration rate of the irrigation
				field.
(n) The system must include
				a readily accessible diversion valve so the greywater can be directed into the
				approved public sewer system or on-site sewage system when necessary; for
				example, when soils are saturated or frozen, or blockage, plugging, or backup
				of the system occurs, or the maximum allowed gallons per day is reached, or
				when the building owner chooses not to use the system.
(o) The diversion valve must be visibly
				labeled.
(p) Pipes and above-ground
				tanks must be labeled with the words: "CAUTION: NONPOTABLE WATER, DO NOT
				DRINK."
(q) If mulch is used, it
				must be permeable enough to allow rapid infiltration of greywater.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-274 - Greywater reuse for subsurface irrigation › Section 246-274-100 - Tier 1 greywater irrigation systems

Current through Register Vol. 24-14, July 15, 2024
(1) The following conditions and restrictions
				apply to each Tier 1 greywater irrigation system:
(a) The greywater must be light
				greywater.
(b) The total flow of
				greywater must be sixty gallons per day or less.
(c) The greywater must originate from a
				single-family residence.
(d) The
				single-family residence must be served by an approved public sewer system or
				on-site sewage system.
(e) The
				greywater must be diverted to the subsurface irrigation system through a single
				diversion point. Flows from fixtures located close enough to each other to be
				diverted through a single diversion point may be combined.
(f) The greywater must be delivered through
				the irrigation system by gravity distribution. Pumps may not be used to convey
				the greywater.
(g) The greywater
				may not be stored.
(h) The total
				minimum irrigation area available to receive the greywater must be adequate
				based on a calculation of:
(i) The estimated
				volume of greywater;
(ii) The
				evapotranspiration rate in inches per week for the geographic area of the state
				where the landscape or garden is located; and
(iii) The water requirements of the plants,
				known as a plant factor. A "Greywater System Checklist and Irrigation Area
				Estimation Tool" is available from the Washington state department of health's
				web site.
(i) The
				greywater must be distributed throughout the irrigation area.
(j) The homeowner may direct greywater to
				separate irrigation fields so long as the total flow of greywater to all fields
				combined does not exceed sixty gallons per day.
(k) The Tier 1 system must be covered by at
				least four inches of appropriate material which may include suitable soil or
				other material such as mulch, humus, or compost. If material other than
				suitable soil is used, the irrigation field cover must be augmented
				periodically as needed to maintain adequate cover during the growing
				season.
(l) The homeowner shall
				ensure that the Tier 1 system is properly operated and maintained.
(m) The homeowner shall maintain a record of
				the Tier 1 system that:
(i) Shows the
				location of the system;
(ii)
				Identifies the fixture(s) that are the source of the greywater;
(iii) Describes the system design and how it
				meets the requirements of WAC
				246-274-100;
(iv) Describes the system's maintenance
				requirements; and
(v) Includes the
				calculation of the total minimum irrigation area required under subsection (h)
				of this section.
(n) The
				homeowner shall maintain the record of the system on a completed "Greywater
				System Checklist and Irrigation Area Estimation Tool."
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-274 - Greywater reuse for subsurface irrigation › Section 246-274-200 - Tier 2 greywater irrigation systems

Current through Register Vol. 24-14, July 15, 2024
(1) The following conditions and restrictions
				apply to Tier 2 greywater irrigation systems:
(a) The greywater must be light
				greywater.
(b) The total flow of
				greywater must be less than three thousand five hundred gallons per
				day.
(c) The greywater may
				originate from a residential or nonresidential building.
(d) The building must be served by an
				approved public sewer system or large on-site sewage system, except as provided
				in subsection (e) of this section.
(e) If the building is served by an approved
				on-site sewage system with design flows of less than three thousand five
				hundred gallons per day, the greywater must originate from a single-family
				residence and the total flow of greywater must not exceed three hundred gallons
				per day. If the building is something other than a single-family residence, the
				local health officer may allow the use of a Tier 2 system if he or she
				determines that applicable requirements can be met.
(f) Application of the greywater to the
				plants must be even throughout the irrigation field. This is typically achieved
				through pressure distribution.
(g)
				If the greywater is stored, it may not be stored for more than twenty-four
				hours.
(h) Warning signs must be
				visible at each fixture from which greywater is diverted at a nonresidential
				building. The signs must notify the employees and the public that water from
				the fixture is reused for subsurface irrigation of plants and that chemicals
				and other hazardous materials may not be poured down the drain.
(i) The owner shall maintain a record of the
				Tier 2 system that:
(i) Shows the location of
				the system;
(ii) Identifies the
				fixture(s) that are the source of the greywater;
(iii) Describes the design of the system and
				how it meets the requirements of WAC
				246-274-410 and
				246-274-415;
(iv) Identifies the person responsible for
				designing the system;
(v) Describes
				the maintenance requirements of the system; and
(vi) Includes an estimated calculation of the
				total irrigation area pursuant to WAC
				246-274-415(1) and
				(2).
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-274 - Greywater reuse for subsurface irrigation › Section 246-274-300 - Tier 3 greywater irrigation systems

Current through Register Vol. 24-14, July 15, 2024
(1) A Tier 3 greywater irrigation system is a
				system that uses a treatment component.
(2) A treatment component is required when
				the system:
(a) Reuses dark
				greywater;
(b) Involves storage of
				greywater for more than twenty-four hours;
(c) Irrigates a green roof;
(d) Serves a high public exposure area such
				as a playground or sports field; or
(e) Is otherwise deemed by the local health
				officer to require treatment to protect public health or water
				quality.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-274 - Greywater reuse for subsurface irrigation › Section 246-274-400 - Greywater reuse treatment technologies - Tier 3 greywater irrigation systems

Current through Register Vol. 24-14, July 15, 2024
(1) This section
				applies to treatment technologies for Tier 3 greywater irrigation
				systems.
(2) All proprietary
				greywater treatment products used to treat light greywater shall meet the
				requirements of NSF/ANSI Standard 350-1, 2011, of the National Sanitation
				Foundation International (NSF), "
Onsite Residential and Commercial
				Graywater Treatment Systems for Subsurface Discharge
."
(3) All proprietary treatment products used
				to treat dark greywater shall meet the requirements of NSF/ANSI Standard 40,
				2009.
(4) All proprietary treatment
				products shall bear the NSF seal of approval indicating that the product meets
				the requirements of NSF Standard 350-1 or NSF Standard 40 as
				applicable.
(5) Public domain
				treatment technologies may be used to treat greywater if the department has
				developed recommended standards and guidance for the technologies.
Statutory Authority: RCW 90.46.015. 11-02-011, §
					 246-274-400, filed 12/28/10, effective
					 7/31/11.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-274 - Greywater reuse for subsurface irrigation › Section 246-274-405 - Location

Current through Register Vol. 24-14, July 15, 2024
Tier 1, Tier 2, and Tier 3 greywater irrigation systems shall
				  be designed and installed to meet the minimum horizontal setback requirements
				  specified in Table I.
Table I Minimum Horizontal Setbacks
From edge of subsurface irrigation
								components
From tank and other system
								components
Building foundations
Down-gradient1:
10 ft.
N/A
Up-gradient:
2 ft.
N/A
Property or easement line
2 ft.
2 ft.
Pressurized water supply line/public water
								main
10 ft.
10 ft.
Interceptor/
curtain drains/drainage ditches
Down-gradient:
30 ft.
N/A
Up-gradient:
10 ft.
N/A
In-ground swimming pool
10 ft.
5 ft.
Spring or surface water measured from the ordinary
								high-water mark2
100 ft.
50 ft.
Well or suction line
100 ft.
50 ft.
Public drinking water well
100 ft.
100 ft.
Public drinking water spring measured from the
								ordinary high-water mark
200 ft.
200 ft.
Decommissioned well (decommissioned in accordance
								with chapter 173-160 WAC)
10 ft.
N/A
Down-gradient cuts or banks with at least 5 ft. of
								original, undisturbed soil above a restrictive layer due to a structural or
								textural change
25 ft.
N/A
Down-gradient cuts or banks with less than 5 ft. of
								original, undisturbed soil above a restrictive layer due to a structural or
								textural change
50 ft.
N/A
On-site sewage system primary and reserve
								areas
10 ft.
N/A
1
The item is down-gradient when liquid will flow
								toward it upon encountering a water table or a restrictive layer. The item is
								up-gradient when liquid will flow away from it upon encountering a water table
								or restrictive layer.
2
If surface water is used as a public drinking water
								supply, the greywater system must be located outside of the required source
								water protection area.
Statutory Authority: RCW 90.46.015. 11-02-011, §
					 246-274-405, filed 12/28/10, effective
					 7/31/11.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-274 - Greywater reuse for subsurface irrigation › Section 246-274-410 - Design requirements - General - Tier 2 and Tier 3 greywater irrigation systems

Current through Register Vol. 24-14, July 15, 2024
(1) Tier 2 and Tier
				3 greywater irrigation systems must be designed by a qualified professional,
				except:
(a) The local health officer may allow
				a resident owner of a single-family residence, not adjacent to a marine
				shoreline, to design a system for his or her residence when the system reuses
				no more than three hundred gallons per day of greywater; or
(b) The local health officer may design the
				system if he or she performs the soil and site evaluation.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-274 - Greywater reuse for subsurface irrigation › Section 246-274-415 - Design requirements - Irrigation field components - Tier 2 and Tier 3 greywater irrigation systems

Current through Register Vol. 24-14, July 15, 2024
Greywater irrigation fields for Tier 2 and Tier 3 systems
				  must be designed to meet the following requirements:
(1) Calculation of the total irrigation area
				is based on:
(a) The operating capacity of the
				system; and
(b) Irrigation rates
				that are dependent on the plant factor and evapotranspiration rate.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-274 - Greywater reuse for subsurface irrigation › Section 246-274-420 - Soil and site evaluation - Tier 2 and Tier 3 greywater irrigation systems

Current through Register Vol. 24-14, July 15, 2024
(1) A soil and site
				evaluation is required for Tier 2 and Tier 3 greywater irrigation systems. Only
				qualified professionals or local health officers may perform soil and site
				evaluations. Soil scientists may perform soil evaluations.
(2) The local health officer may allow a
				resident owner of a single-family residence, not adjacent to a marine
				shoreline, to perform the evaluation for his or her residence when the system
				reuses no more than three hundred gallons per day of greywater.
(3) The person evaluating the soil and site
				shall:
(a) Ensure that the soil types of the
				site are properly identified, and will provide suitable soil capable of
				supporting healthy plant life.
(b)
				Determine texture, structure, compaction, and soil characteristics and classify
				the soil as in WAC
				246-274-415, Table II.
(c) Use the soil names and particle size
				limits of the United States Department of Agriculture Natural Resources
				Conservation Service classification system.
(d) Provide a report to the local health
				officer that includes:
(i) A soil map showing
				the soils within the project site. If the original, undisturbed soil will be
				augmented with additional soil, include a description of the additional soil,
				how it will be tilled into the original soil, and how the resulting soil will
				meet the requirements of WAC
				246-274-415(7);
(ii) The drainage characteristics of the site
				and those areas immediately adjacent to the site that contain characteristics
				impacting the design;
(iii) The
				existence of designated flood plains and other areas identified in the local
				management plan required in WAC
				246-272A-0015; and
(iv) The location of existing features
				affecting system placement, including the items requiring setback, identified
				in WAC 246-274-405, Table I, and other
				features such as:
(A) Surface water and storm
				water infiltration areas;
(B)
				Abandoned wells;
(C) Outcrops of
				bedrock and restrictive layers;
(D)
				Driveways, parking areas, and other impervious surfaces;
(E) The approved on-site sewage system
				serving the building, if any; and
(F) Underground utilities.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-274 - Greywater reuse for subsurface irrigation › Section 246-274-425 - Installation permit requirements - Tier 2 and Tier 3 greywater irrigation systems

Current through Register Vol. 24-14, July 15, 2024
(1) Before
				beginning the construction of a Tier 2 or Tier 3 greywater irrigation system, a
				person proposing the installation of the system shall provide information to,
				and obtain a permit to install from, the local health officer. The information
				provided must include:
(a) The following
				general information:
(i) Name and address of
				the property owner;
(ii) Parcel
				number and if available, the site address;
(iii) Identification of the approved public
				sewer system or on-site sewage system serving the property;
(iv) Size of the parcel;
(v) Name, signature, and stamp, if
				applicable, of the person responsible for designing the system;
(vi) Date of application;
(vii) Name and signature of the owner or the
				owner's authorized agent; and
(viii) Certification by the owner or owner's
				authorized agent that the greywater will not contain anything prohibited under
				WAC 246-274-011.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-274 - Greywater reuse for subsurface irrigation › Section 246-274-430 - Installers - Tier 2 and Tier 3 greywater irrigation systems

Current through Register Vol. 24-14, July 15, 2024
(1) Only a person
				approved by the local health officer to install greywater irrigation systems
				may construct and install a Tier 2 or Tier 3 system.
(2) The local health officer may allow the
				resident owner of a single-family residence, not adjacent to a marine
				shoreline, to install the Tier 2 or Tier 3 system for his or her residence when
				the system reuses no more than three hundred gallons per day of
				greywater.
(3) The installer shall:
(a) Follow the approved design;
(b) Have the approved design in possession
				during installation;
(c) Make no
				changes to the approved design without the prior authorization of the person
				who designed the system and, if a permit is required, the local health officer;
				and
(d) Be on the site at all times
				during the excavation and construction of the system.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-274 - Greywater reuse for subsurface irrigation › Section 246-274-435 - Installation inspection - Tier 2 and Tier 3 greywater irrigation systems

Current through Register Vol. 24-14, July 15, 2024
(1) For Tier 2
				greywater irrigation systems that require an installation permit, and for Tier
				3 greywater irrigation systems, the local health officer shall:
(a) Either inspect the system before cover or
				allow the person who designed the system to perform the inspection before cover
				if the designer is not also the installer of the system; and
(b) Keep the application submittal on file,
				with the approved design documents.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-274 - Greywater reuse for subsurface irrigation › Section 246-274-440 - Operation and maintenance - Tier 2 and Tier 3 greywater irrigation systems

Current through Register Vol. 24-14, July 15, 2024
(1) The owner of a
				Tier 2 or Tier 3 greywater irrigation system is responsible for properly
				operating, monitoring, and maintaining the system as follows:
(a) Obtain approval from the local health
				officer before altering or expanding the system;
(b) Protect the greywater irrigation system
				from damage, including damage from surface drainage and direct drains, such as
				footing or roof drains. The drainage must be directed away from the area where
				the greywater system is located;
(c) Ensure that the greywater originates from
				the correct fixtures; and
(d)
				Provide maintenance and needed repairs to promptly return the system to proper
				operating condition or promptly divert the greywater to the approved public
				sewer system or on-site sewage system serving the building until the system is
				repaired.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-274 - Greywater reuse for subsurface irrigation › Section 246-274-445 - Failures

Current through Register Vol. 24-14, July 15, 2024
If a Tier 1, Tier 2, or Tier 3 greywater irrigation system
				  fails or a failure is suspected, the owner of the system shall immediately
				  divert the greywater to the approved public sewer system or on-site sewage
				  system serving the building. No person may use the greywater system until the
				  failure is corrected.
Statutory Authority: RCW 90.46.015. 11-02-011, §
					 246-274-445, filed 12/28/10, effective
					 7/31/11.
Washington Administrative Code › Title 246 - Health, Department of › SEWER SYSTEMS › Chapter 246-274 - Greywater reuse for subsurface irrigation › Section 246-274-450 - Enforcement

Current through Register Vol. 24-14, July 15, 2024
(1) The local
				health officer shall enforce these rules and may initiate enforcement actions
				against the system owner or other person causing or responsible for the
				violation of these rules. Enforcement actions may include, but are not limited
				to, requiring a person to stop work on any greywater system, or to divert the
				greywater to the approved public sewer system or on-site sewage system serving
				the building, until all permits, approvals, and registrations required by rule
				or statute are obtained.
(2)
				Enforcement orders issued under this section shall be in writing and shall
				include the violation and the corrective action required, and the name,
				business address, and phone number of an appropriate staff person who may be
				contacted regarding the order.
(3)
				Enforcement orders shall be personally served in the manner of service of a
				summons in a civil action or in a manner showing proof of receipt.
Statutory Authority: RCW 90.46.015. 11-02-011, §
					 246-274-450, filed 12/28/10, effective
					 7/31/11.