SB 4 Interim Well Stimulation Treatment Regulations

Text of Proposed Regulations

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## SB 4 INTERIM WELL STIMULAT ION TREATMENT REGULATIONS

TEXT OF PROPOSED REGULATIONS

Added text is shown in underline

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CHAPTER 4. DEVELOPMENT, REGULATION, AND CONSERVATION

OF OIL AND GAS RESOURCES

Subchapter 2. Environmental Protection

Article 2. Definitions

1761. Well Stimulation and Underground Injection Projects.

(a) The following definitions are applicable to this subchapter:

(1) “Well stimulation treatment” means a treatment of a well designed to enhance oil

and gas production or recovery by increasin g the permeability of the formation. Well

stimulation is a short term and non-continual process for the purposes of opening and

stimulating channels for the fl ow of hydrocarbons. Exam ples of well stimulation

treatments include hydrau lic fracturing, acid fracturing, and acid matrix stimulation. Well

stimulation treatment does not include r outine well cleanout work; routine well

maintenance; routine treatment for the purpose of removal of formation damage due to

drilling; bottom hole pressure surveys; routine ac tivities that do not a ffect the integrity of

the well or the formation; the removal of sca le or precipitate from the perforations,

casing, or tubing; or a treatment that does not penetrate into the formation more than 36

inches from the wellbore.

(2) “Underground injection pr oject” or “subsurface injecti on or disposal project” means

sustained or continual injection into one or more wells over an extended period in order

to add fluid to a zone for the purpose of enhanced oil recovery, disposal, or storage.

Examples of underground inject ion projects include waterflood injection, steamflood

injection, cyclic steam injection, inje ction disposal, and gas storage projects.

(b) Well stimulation treatments and undergr ound injection projects are two distinct

kinds of oil and gas production processes. Unless a regulation expressly addresses

both well stimulation and under ground injection projects,

(1) Regulations regarding well stim ulation treatments do not apply to underground

injection projects; and

(2) Regulations regarding underground injection projects do not apply to well

stimulation.

(c) Well stimulation treatment on a well that is part of an underground injection project

is subject to the regulations rega rding well stimulation treatment.SB 4 Interim Well Stimulation Treatment Regulations

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### NOTE: Authority cited: Section 3013, 3160, and 3161, Public Resources Code.

Reference: Section 3106, 3160, and 3161, Public Resources Code.

Article 4. Well Stimulation Treatments

1780. Purpose, Scope, and Applicability.

(a) The purpose of this article is to se t forth regulations gover ning well stimulation

treatments, as defined in Sect ion 1761, subdivision (a)(1), ex cept that the requirements

of this article do not apply to acid matrix stimulation treatment s that use an acid

concentration of 7% or less. Nor is an oper ator required to obtain a permit under Public

Resources Code section 3160, subdivision (d ), prior to performing an acid matrix

stimulation treatment that uses an acid concentration of 7% or less.

(b) Well stimulation treatm ents are not subsurface inject ion or disposal projects and

are not subject to Sections 1724.6 through 1724.10. This article does not apply to

underground injection projects.

(c) For purposes of this article, a we ll stimulation treatment commences when well

stimulation fluid is pumped into the well, and ends when the well st imulation treatment

equipment is disconnected from the well.

NOTE: Authority cited: Section 3013, 3160, and 3161, Public Resources Code.

Reference: Section 3106, 3160, and 3161, Public Resources Code.

1781. Definitions.

The following definition shall govern this article:

(a) “ Acid matrix stimulation treatment ” means an acid treatment conducted at

pressures lower than the applied pressure necessary to fracture the underground

geologic formation.

(b) “ Acid well stimulation treatment ” means a well stimulation treatment that uses, in

whole or in part, the applicat ion of one or more acids to the well or underground

geologic formation. The acid well stimulati on treatment may be at any applied pressure

and may be used in combination with hydrau lic fracturing treatments or other well

stimulation treatments. Acid well stimulation treatments in clude acid matrix stimulation

treatments and acid fr acturing treatments.

(c) “ Acid stimulation treatment fluid ” means one or more base fluids mixed with

physical and chemical additives for the purpo se of performing an acid well stimulation

treatment.

(d) “Additive” means a substance or combination of substances added to a base fluid

for purposes of preparing well stimulation treat ment fluid, including, but not limited to,

acid stimulation treatment fl uid and hydraulic fracturing fluid. An additive may serve

additional purposes beyond the transmission of hydraulic pressure to the geologic

formation. An additive may be of any phase and may include proppants.

(e) “Base fluid” means the continuous phase fluid used in the makeup of a well

stimulation treatment fluid. The continuous phase fluid may incl ude, but is not limited to,SB 4 Interim Well Stimulation Treatment Regulations

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### water, and may be a liquid or a hydrocarbon or nonhydrocarbon gas. A well stimulation

treatment may use more than one base fluid.

(f) " Chemical Disclosure Registry " means the chemical registry Internet Web site

known as fracfocus.org developed by t he Ground Water Protection Council and the

Interstate Oil and Ga s Compact Commission.

(g) “ Flowback fluid ” means the fluid recovered fr om the treated well before the

commencement of oil and gas production from that well following a well stimulation

treatment. The flowback fluid may include materials of any phase.

(h) “ Hydraulic fracturing ” means a well stimulation treatment that, in whole or in

part, includes the pressurized injection of hy draulic fracturing fluid or fluids into an

underground geologic formation in order to frac ture or with intent to fracture the

formation, thereby causing or enhancing, for the purposes of this article, the production

of oil or gas from a well.

(i) “ Hydraulic fracturing fluid ” means one or more base fl uids mixed with physical

and chemical additives for the purpose of hydraulic fracturing.

(j) “ Proppants” means materials inserted or in jected into the underground geologic

formation that are intended to pr event fractures from closing.

(k) “ Protected water ” means water outside of a hydrocarbon zone that contains no

more than 10,000 mg/l total dissolved solids unless the water has been determined to

be an exempt aquifer pursuant to the Code of Federal Regulations, title 40, part 146.4.

(l) “ Regional Water Board ” means the Regional Water Quality Control Board with

jurisdiction over the location of a well subject to well stimulation treatment.

(m) “ Surface property owner ” means the owner of real property as shown on the

latest equalized assessment ro ll or, if more recent info rmation than the information

contained on the assessment roll is available, the owner of record according to the

county assessor or tax collector.

(n) “ Well stimulation treatment fluid ” means a base fluid mixed with physical and

chemical additives, which may include acid , for the purpose of a well stimulation

treatment. A well stimulati on treatment may include mo re than one well stimulation

treatment fluid. Well stimulat ion treatment fluids include, but are not limited to, hydraulic

fracturing fluids and acid stimulation treatment fluids.

NOTE: Authority cited: Sections 3013, 3160, and 3161, Public Resources Code.

Reference: Sections 3106, 3150, 3151, 3152, 3153, 3154, 3156, 3158, 3159, 3160, and

3161, Public Resources Code.

1782. General Well Stimulat ion Treatment Requirements.

(a) When a well stimulation tr eatment is performed, the oper ator shall adhere to all of

the following requirements:

(1) Casing shall be sufficiently cemented or otherwise anchored in the hole in order to

effectively control the well at all ti mes during well stimul ation treatment.

(2) All potentially pro ductive zones, zones capable of over-pressurizing the surface

casing annulus, or corrosive zones shall be is olated and sealed off to the extent that

such isolation is necessary to prevent vertic al migration of fluids or gases behind the

casing.SB 4 Interim Well Stimulation Treatment Regulations

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### (3) The wellbore’s mechanical integr ity shall be tested and maintained and all

cemented casing strings and all tubing strings utilized in the well st imulation treatment

operations shall be pressure tested prior to well stimulation treatment. No casing or

tubing shall be used unless it has been successfully tested.

(4) All surface equipment to be utilized for well stimulation treatment shall be rigged

up as designed. The pump, and all equipme nt downstream from the pump, shall be

pressure tested prior to well stimulation treatment.

(5) The well stimulati on treatment fluid shall not be of a concentration level that will

damage the well casing, tubing, cement, or other well equipment, or would otherwise

cause degradation of the well’s mechanical integrity during the treatment process.

(6) The operator’s Spil l Contingency Plan shall address handling of well stimulation

fluid and additives.

NOTE: Authority cited: Section 3013, 3160, and 3161, Public Resources Code.

Reference: Section 3106, 3160, and 3161, Public Resources Code.

1783. Written Notice of We ll Stimulation Treatment.

(a) At least 10 days in advance of co mmencing a well stimul ation treatment, the

operator shall submit writt en notification to the Divisi on that includes all of the

information and certifications listed in Sectio n 1783.1. The written notification shall be

submitted on the Interim Well Stimulation Tr eatment Notice form (1/14 version), hereby

incorporated by reference, and signed by an authorized representat ive of the operator

with basis of knowledge of all of the information and certificat ions provided. The Interim

Well Stimulation Treatment Notice form s hall be submitted to the Division in an

electronic format, directed to the email address “NoticeWST@conservation.ca.gov”.

(b) Well stimulation treatment shall not commence unless the Division has reviewed

the Interim Well Stimulation Treatment Notice form and appr oved the form as complete.

As directed in Public Resources Code sect ion 3161, the Division must allow, and will

allow, well stimulation to proceed if the operator has pr ovided all of the required

information and certifications.

(c) The operator shall notif y the Division at least 72 hour s prior to commencing well

stimulation so that Division staff may wit ness. Three hours prior to commencing, the

operator shall confirm with the Di vision that the well stimulat ion treatment is proceeding.

NOTE: Authority cited: Section 3013, 3160, and 3161, Public Resources Code.

Reference: Section 3106, 3160, and 3161, Public Resources Code.

1783.1. Contents of Interim Well Stimulation Treatment Notice.

(a) Written notification of a well stimulation treatment shall include the following

information:

(1) Operator’s name;

(2) Name and telephone number of per son filing the form;

(3) Lease name and number of the well;

(4) Location of the well, submitt ed as a non-projected, Latitude Longitude, in

the General Coordinate System (GCS) NAD83.SB 4 Interim Well Stimulation Treatment Regulations

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### (5) API number assigned to the well by the Division;

(6) Name of the oil field;

(7) County in which the well is located;

(8) The time period during which the well stimulation tr eatment is planned to occur.

(9) For directionally drilled wells, the proposed coordinates (from surface location),

the true vertical depth at tota l depth, and the wellbore path; and

(10) The planned location of the well stimulation treatment on the well bore, the

estimated length, height, and direction of the induced fractures or other planned

modification, if any.

(11) Whether the Division has made a determination that the well subject to well

stimulation treatment is a confidential well u nder Public Resources Code section 3234.

(b) Written notification of a well stimulation treatment shall in clude certification of all of

the following:

(1) Attached to the notice is a complete list of the names, Chemical Abstract Service

(CAS) numbers, and estimated concentrations, in percent by mass, of each and every

chemical constituent of the well stimulat ion fluids anticipated to be used in the

treatment, as required by Public Resources Code section 3160, subdivision (d)(1)(D). If

a CAS number does not exist for a chemical constituent, another unique identifier has

been provided, if available.

(2) Attached to the notice is a Water Man agement Plan that includes all of the

information required by Public Resources Code section 3160, subdivision (d)(1)(C).

(3) Attached to the notice is a list of loca tions of existing wells, including plugged and

abandoned wells, that may be impact ed by the fractures or modifications, as required by

Public Resources Code section 3160, subdivision (d)(1)(E).

(4) Attached to the notice is a Groundwater Monitoring Plan that meets the

requirements of Section 1783.4.

(5) The operator has contracted with an independent ent ity to provide neighboring

property owners and tenants with a copy of this notice and the attach ments thereto, and

with information about the availability of water well testing, as required by Public

Resources Code section 3160, subdivision (d )(6). The well stimulation will not

commence until 30 days after the required not ice has been provided. If a notified

property owner makes a timely, written request for water well sampling and testing, then

the operator will pay for testing and samp ling by one or more qualified independent

third-party contractors designated by t he State Water Resour ces Control Board,

provided that the sampling and testing is c onsistent with the standards and protocols

specified by the State Water Resources Co ntrol Board pursuant to Public Resources

Code section 3160(d)(7)(B) and is conducted in accordance with Public Resources

Code section 3160, subdivision (d)(7)(A). If a notified property owner makes a timely,

written request for water well sampling and te sting, then the well stimulation will not

commence until requested baseline water we ll sampling and testing is complete.

(6) Within 60 days after the cessation of the well stimulation treatment, the abovenamed operator will make all public disclosures required by Public Resources Code

section 3160, subdivisions (b) and (g), and pursuant to Section 1788.

(c) A claim of trade secret protection for the information required under this section

shall be handled in the manner specified un der Public Resources Code section 3160,SB 4 Interim Well Stimulation Treatment Regulations

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### subdivision (j). Notwithstanding any claim of trade secret protection, the Division shall

not approve as complete an Interim Well Stimul ation Treatment Notice unless all of the

information specified in Public Resources C ode section 3160, subdivision (d)(1)(D), has

been provided to the Division.

NOTE: Authority cited: Section 3013, 3160, and 3161, Public Resources Code.

Reference: Section 3106, 3160, and 3161, Public Resources Code.

1783.2. Copy of Interim Well Stimulation Treatment Notice; Noti ce of Availability

for Water Testing, Sampling; Request for Water Testing.

(a) At least 30 days in advance of commenc ing well stimulation treatment, the operator

of the well subject to well st imulation treatment is required to provide to surface property

owners and tenants of legally recognized pa rcels of land situated within a 1500-foot

radius of the wellhead of any su ch well, or within 500 feet of the horizontal projection of

the subsurface parts of any such well, the following:

(1) A copy of the Inte rim Well Stimulation Tr eatment Notice, approved as complete by

the Division;

(2) Notice of the ava ilability of water sampling and te sting of any water well located

on the parcel that is suitable for drinking or irrigation purposes;

(3) Notice of the availability of water sampling and testing of any surface water

located on the parcel that is suitable for drinking or irrigation purposes; and

(4) Information about how to request water sampling and testing, and notice that a

request for water sampling and testing must be made within 20 days of receipt of the

notification.

(b) A property owner notified pursuant to this section may request water quality

sampling and testing on any water well located on the parcel that is suitable for drinking

or irrigation purposes and on any surface water located on the parcel that is suitable for

drinking or irrigation purposes, provided that the request is made in writing within 20

days of receipt of the notification. Upon re ceipt of a timely, written request for water

quality sampling and testing, t he operator shall pay for testing and sampling by one or

more qualified independent third-party c ontractors designated by the State Water

Resources Control Board, prov ided that the sampling and test ing is consistent with the

standards and protocols specif ied by the State Water Resources Control Board

pursuant to Public Resources Code section 3160(d)(7)(B) and is conducted in

accordance with Public Resources C ode section 3160, subdivision (d)(7)(A).

(c) For the purposes of th is section, “tenant” means a per son or entity possessing the

right to occupy a legally rec ognized parcel, or portion thereof.

(d) For the purposes of th is section, “horizontal pr ojection” means the surface

representation of the horizont al path of the wellbore.

NOTE: Authority cited: Section 3013, 3160, and 3161, Public Resources Code.

Reference: Section 3106, 3160, and 3161, Public Resources Code.

1783.3. Duty to Hire Independent Third Part y to Provide Copy of Permit, Notice of

Water Testing, Sampling.SB 4 Interim Well Stimulation Treatment Regulations

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### (a) It is the operator’s responsibility to identify the su rface property owners and tenants

to whom a copy of the completed Interim Well Stimulation Treatment Notice must be

provided and notification is r equired under Section 1783.2. To fulfill this responsibility,

the operator or owner must hire an independent person or entit y to provide a copy of the

Interim Well Stimulation Treatment No tice and the notification required.

(b) Any person or entity hired by the owner of a well to provide a copy of the Interim

Well Stimulation Treatment Noti ce and notice in accordance with this regulation shall,

after providing such notice, deliver to the Division, in writing, the following:

(1) The names of the proper ty owners or t enants identified;

(2) The method by which the copy of the completed Interim Well Stimulation

Treatment Notice was prov ided, and the date on which the copy of the completed

Interim Well Stimulation Treat ment Notice was provided; and

(3) The method by which the notice of the availability of water sampling and testing

was provided, and the date on wh ich the notice was provided.

(c) Information about the availability of water quality testing may be included in the

notification or the not ification may reference a website with further information about

testing options.

NOTE: Authority cited: Section 3013, 3160, and 3161, Public Resources Code.

Reference: Section 3106, 3160, and 3161, Public Resources Code.

1783.4. Groundwater Sampling, Testing, and Monitoring.

(a) The purpose of this section is to provide interim model groundwater monitoring

criteria for groundwater samplin g, testing, and monitoring rela ted to well stimulation that

is conducted prior to the fina lization of model groundwater m onitoring criteria by the

State Water Resources Control Board. These interim criteria do not apply to regional

groundwater monitoring programs developed by the State Water Resources Control

Board or the Regi onal Water Board.

(b) A well-specific (also referred to as “we ll-by-well”) or area-specific (also referred to

as “oil or gas field-specific”) groundwater monitoring plan shall include all of the

following:

(1) A map and cross section of the well bo rehole(s) to undergo well stimulation

treatment, showing the well name(s), extent and orientation of the planned fracture

network, the stratigraphic depths of protecte d waters, and the stratigraphic depths of

low-permeability zones that will function to slow the migration of fluids towards protected

waters or the surface.

(2) Complete well construction det ails for the well borehole(s) to undergo well

stimulation treatment and all new and existi ng groundwater wells that will be used for

monitoring.

(3) To the extent that information is publicly available, a map showing the location of

all existing groundwater supply wells (public, pr ivate domestic, irrigation, and industrial)

and groundwater monitoring wells within a 1500-f oot radius of the well(s) to undergo

well stimulation treatment, or within 500 f eet of the surface r epresentation of the

horizontal path of the we llbore of any such well.SB 4 Interim Well Stimulation Treatment Regulations

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### (4) A map showing location of any abandoned or inactive wells within a 1500-foot

radius of the well(s) to under go well stimulation treatment, or within 500 feet of the

surface representation of the horizontal path of the wellbore of any such well.

(5) A map showing location of groundwat er wells (new and existing monitoring wells

and supply wells) to be sampled in the groundwater monitoring plan.

(6) A contingency plan for reporting information in the event of a well failure, or any

other unintended event that has the potential to affect groundwater quality, such as the

detection of a fracture beyond the intended z one or into protected waters. A “well

failure” means instances where the well casing has been compromised producing a

subsurface leak into water bearing zones and is a potential th reat to groundwater

quality. The contingency plan sh all, at a minimum, require the well operator to submit

the following information to the Division, t he State Water Resources Control Board, and

the appropriate Regional Water Board within 48 hours of discovery of a well failure or

other unintended event that has the potent ial to affect groundwater quality:

(A) A description of the activities leading up to the well failure or unintended event;

(B) Depth interval(s) of the well failure or unintended event;

(C) Chemical composit ion of the well stimulation treat ment fluid and of the fluid in

the well at the time of the we ll failure, or unintended event; and

(D) An estima te of the volume of fluid lost dur ing well failure, or unintended event.

(c) Well-specific and area-specific gr oundwater monitoring should be designed to

assess whether protected waters have been impacted by well stimulation treatment.

Groundwater wells to be used for groundwater monitoring should be located within

reasonable proximity of the oil or gas well(s) undergoing stimulation treatment.

Groundwater wells to be used for groundwater monitoring should be screened at depths

in the aquifer where existing groundwater supply wells are screened. Additional

groundwater wells to be used for groundwater monitoring should be screened near the

base of protected waters. The number of new and existing groundwater wells to be

used for groundwater monitoring, their locations, depths, screened intervals, and

justification for their use shall be included in the groundwater monitoring plan. If any

groundwater wells identified in accordance with subsection (b)(3) are not to be used for

groundwater monitoring, a justification for their exclusion shall be included in the

groundwater monitoring plan. The Division shall not approve as complete an Interim

Well Stimulation Treatment Noti ce submitted on or after Ja nuary 1, 2014 that asserts

the absence of protected water as the basis for not conducting groundwater monitoring

unless the submittal includes written conc urrence by the Water Boards with the

operator’s determination of the absence of protected water.

(d) If new groundwater wells are used for well-specific or area-specific groundwater

monitoring, they shall be constructed in accordance with any applicable local well

ordinances. If there are no applicable local well ordinances, they sh all be constructed in

accordance with the California Well Standar ds contained in Department of Water

Resources Bulletin 74-81 (publicly available at

http://www.water.ca.gov//pubs/groundw ater/water_well_standards__bulletin_74-

81_/ca_well_standards_bulletin7 4-81_1981.pdf), as supplemented by Department of

Water Resources Bulletin 74- 90 (publicly available atSB 4 Interim Well Stimulation Treatment Regulations

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### http://www.water.ca.gov/pubs/groundw ater/water_well_standards__bulletin_74-

90_/ca_well_standards _bulletin74-90_1991.pdf).

(e) For well-specific and area- specific groundwater moni toring, the operator should

sample the groundwater monitoring wells fre quently enough to detect changes in water

quality. The operator sha ll sample the groundwater monitoring wells before well

stimulation commences to establish a gr oundwater quality baselin e and at least once

within 60 days after the well stimulation is comp leted. The well op erator shall sample

the wells semiannually therea fter until the State Water Re sources Control Board has

developed its final groundwater monitoring model criteria.

(f) For all groundwater sampling, testi ng, and monitoring conduct ed pursuant to this

Article, groundwater shall be measured for fi eld parameters includi ng pH, temperature,

and electrical conductivity. For all groundw ater sampling, test ing, and monitoring

conducted pursuant to this Article, groundwat er samples shall be analyzed using current

applicable EPA-approved analytical methods for wa ter, if available, for all of the

following: appropriate indicator compounds(s) for the well stimulatio n treatment fluid;

total dissolved solids; metals listed in Califo rnia Code of Regulations, title 22, section

66261.24, subdivision (a)(2)(A); benzene, tol uene, ethylbenzene, and xylenes; total

petroleum hydrocarbons for crude oil; pol ynuclear aromatic hydrocarbons (including

acenaphthene, acenaphthylene, anthracene,benzo[a]anthr acene, benzo[b]fluoranthene,

benzo[k]fluoranthene, benzo[a]pyrene, benzo[g,h,i]peryl ene, chrysene,

dibenzo[a,h]anthracene, fluor anthene, fluorene, indeno[1,2, 3-cd]pyrene, naphthalene,

phenanthrene, and pyrene); radionuc lides listed under California Code of Regulations,

title 22, Table 64442; methane; major and minor cations (inc luding sodium, potassium,

magnesium, and calcium); major and minor anions (including nitrate, chloride, sulfate,

alkalinity, and bromide); and trace elements (i ncluding lithium, strontium, and boron).

(g) For all groundwater sampling, testi ng, and monitoring conduct ed pursuant to this

Article, groundwater sampling shall be done in accordance with all of the following:

(1) All groundwater sampling is to be performed by a qualified person. A qualified

person is any person with the knowledge an d training in proper sampling methods,

chain of custody, and quality assurance/quality control protocols. Any person

conducting groundwater sampling, other than personnel from an approved laboratory,

shall consult with the laboratory to ensure that the sampler understands and follows the

proper sampling collection procedures and protocols.

(2) All procedures to sample groundwat er monitoring wells shall be consistent with

U.S. Environmental Protection Agency (US EPA) Groundwater Sampling Guidelines for

Superfund and RCRA Project Managers (Ma y 2002) (publicly available at

www.epa.gov/superfund/remedytech/tsp/downl oad/gw_sampling_guide.pdf). All

procedures to sample groundwater supply wells shall be consistent with US EPA

Science and Ecosystem Support Divisi on Operating Procedur e for Groundwater

Sampling (March 2013) (publicly available at

www.epa.gov/region04/sesd/fbqs tp/Groundwater-Sampling.pdf).

(3) All analytical testi ng shall be performed by a laborat ory that is certified by the

California Department of Public Health env ironmental laboratory a ccreditation program

(ELAP).SB 4 Interim Well Stimulation Treatment Regulations

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### (4) All groundwater m onitoring data collected in acco rdance with a well-by-well or

area-specific groundwater m onitoring plan shall be compiled in groundwater monitoring

reports, and submitted to the State Water Resources Control Board. Data collected

prior to commencement of, and within 60 da ys of completion of, well stimulation

treatment shall be submitted in a singl e groundwater monitori ng report. Subsequent

semiannual data should be submitted in semi annual groundwater moni toring reports.

Groundwater monitoring reports shall include at a minimum:

(A) Site plan with lo cations of wells used for groundwater monitoring, and oil and

gas wells.

(B) Table(s) of analy tical results, with both recent and historical data in chronological

order and tabulated by well number.

(C) Maps and/or cross-sections displaying groundwater analytical results.

(D) Well completi on reports and associated lithologic information for sampled

well(s).

(E) Description of field procedures, including well installation or selection, and

groundwater sampling.

(F) Copies of analytical laborator y reports, including q uality assurance/quality

control procedures and analytical test methods.

(G) Changes, if any, to the scope of work, and rationale for the changes.

(H) Decont amination procedures.

(I) Waste management and dis posal procedures, including associated

documentation.

(5) All groundwater quality data and groundwater monitoring reports shall be

submitted to the State Water Resources Co ntrol Board in an electronic format that

follows the guidelines detailed in California Code of Regulations, title 23, division 3,

chapter 30 (commencing with section 3890).

NOTE: Authority cited: Section 3013, 3160, and 3161, Public Resources Code.

Reference: Section 3106, 3160, and 3161, Public Resources Code; Section 10783,

Water Code.

1788. Required Public Disclosures.

(a) Except as provided in subdivision (c), within 60 days after the cessation of a well

stimulation treatment, the operator shall publicly disclos e all of the following information:

(1) Operator’s name;

(2) API number assigned to the well by the Division;

(3) Lease name and number of the well;

(4) Location of the well, submitt ed as a non-projected, Latitude Longitude, in

the General Coordinate System (GCS) NAD83.

(5) County in which the well is located;

(6) Date that the well stimulation treatment occurred;

(7) True vertic al depth of the well;

(8) Name and vertical depth of t he productive horizon w here well stimulation

treatment occurred;SB 4 Interim Well Stimulation Treatment Regulations

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### (9) The trade name, supplier, concent ration, and a brief description of the intended

purpose of each additive contained in the well stimulation fluids used;

(10) The total volume of base flui d used during the well st imulation treatment;

(11) Identification of w hether the base fluid is water suitable for irrigation or domestic

purposes, water not suitable for irrigation or domestic purposes, or a fluid other than

water;

(12) The source, volume, and specific composition and disposition of all water

associated with the well stimul ation treatment, including, but not limited to, water used

as base fluid and water recovered from the we ll following the well st imulation treatment

that is not otherwise r eported as produced water pursuant to Section 3227;

(13) Identification of any reuse of treated or untr eated water for well stimulation

treatments and well st imulation treatment-related activities;

(14) The specific compos ition and disposition of all we ll stimulation treatment fluids,

including waste fluids, other than water;

(15) Any radiological co mponents or tracers inje cted into the well as part of the well

stimulation treatment, a descr iption of the recovery method, if any, for those

components or tracers, the recovery rate , and specific disposal information for

recovered components or tracers;

(16) The radioactivity of t he recovered well stimulation fluids;

(17) The location of the portion of the well subject to the well stimulation treatment

and the ext ent of the fracturing or other modification, if any, surrounding the well

induced by the treatment.

(18) The estimated volume of well stimulation treatment fluid that has been

recovered; and

(19) A complete list of the names, Chemical Abstract Se rvice numbers, and

maximum concentration, in percent by mass, of each and every chemical constituent of

the well stimulation treatment fl uids used. If a Chemical Abstract Service number does

not exist for a chemical cons tituent, the operator may prov ide another unique identifier,

if available.

(b) For hydraulic fracturing well stimulat ion treatments, the operator shall post the

information listed in subsection (a) to the C hemical Disclosure Regi stry, to the extent

that the website is able to receive the inform ation. If the Chemic al Disclosure Registry

is unable to receive information required to be reported under this section, then the

operator shall provide the info rmation directly to the Divis ion on the Well Stimulation

Treatment Disclosure Reporti ng Form. For well stimul ation treatments other than

hydraulic fracturing, the operat or shall provide all of the information listed in subsection

(a) directly to the Division on the Well St imulation Treatment Disclosure Reporting

Form. The Well Stimulation Tr eatment Disclosure Reporting Form is available on the

Division’s public internet website at

ftp://ftp.consrv.ca.gov/pub/ oil/forms/Oil%26Gas/OG110S.XLS X. The Well Stimulation

Treatment Disclosure R eporting Form shall be submitted to the Division in an electronic

format, directed to the email address “DisclosureWST@conservation.ca.gov”.

(c) Except for items (1) th rough (6) of subsection (a), operat ors are not required to post

information to the Chemical Disclosure Regist ry if the information is found in a well

record that the Division has determined is not public record, pursuant to PublicSB 4 Interim Well Stimulation Treatment Regulations

Text of Proposed Regulations

Page 12 of 12 

### Resources Code section 3234. If information lis ted in subsection (a) is not posted to the

Chemical Disclosure Registry on this basis, then the operator shall inform the Division in

writing, specifying the informati on that is not being publicly di sclosed. It is the operator’s

responsibility to post the information to the C hemical Disclosure Registry as soon as the

information becomes public record under Public Resources Code section 3234.

(d) A claim of trade secret protection for the information required to be disclosed under

this section shall be handled in the manner specified under Public Resources Code

section 3160, subdivision (j).

(e) Groundwater quality data r eported under this section shall also be submitted to the

State Water Resources Control Board in an el ectronic format that fo llows the guidelines

detailed in California Code of Regulations, title 23, chapter 30.

NOTE: Authority cited: Section 3013, 3160, and 3161, Public Resources Code.

Reference: Section 3106, 3160, and 3161, Public Resources Code.OG109 (1/14) NATURAL RESOURCES AGENCY OF CALIFORNIA

DEPARTMENT OF CONSERVATION

DIVISION OF OIL, GAS, AND GEOTHERMAL RESOURCES



### INTERIM WELL STIMULATION TREATMENT NOTICE

1 Name of Operator 2 Email address

3 Address 4 City/ State 5 Zip Code

6 Well 7 API No. 8 Field (and Area, if applicable)

9 County 10 Directional Status:

Directionally drilled

Horizontally drilled

Not directionally drilled

Unknown 11 Type of treatment

Hydraulic Fracture

Acid Matrix

Other, type: 12 Sec. 13 T. 14 R. 15 B.&M.

16 Location of Well (Give surface location from property or section corner, street center line)

17 Lat./Long. in decimal degrees, to six decimal places, submitted in a non

‐ projected (GCS) NAD 83 format:

Lat: Long:

18 Has the Division made a determination that the well subject to well stimulation treatment is a confidential well under

Public Resources Code section 3234? Yes No

19 Time period during which the well

stimulation treatment is planned to

occur 20 Planned location of the well

stimulation treatment on the well

bore

Measured Depth: TVD: 21 Name of stimulated horizon

and depth

22 Estimated length of fractures or other

planned modification 23 Estimated height of fractures or other

planned modification 24 Estimated direction of

fractures or other planned

modification

25 Pursuant to Public Resources Code section 3161, subdivision (b)(1), I hereby certify that the above

‐ named operator has

or will comply with the requirements of Public Resources Code section 3160, subdivisions (b), (d)(1)(A)–(F), (d)(6), (d)(7),

and (g), as demonstrated by the information reported in and attached to this notice and the following certifications:

Attached to this notice is a complete list of the names, Chemical Abstract Service (CAS) numbers, and

estimated concentrations, in percent by mass, of each and every chemical constituent of the well stimulation

fluids anticipated to be used in the treatment, as required by Public Resources Code section 3160, subdivision

(d)(1)(D). If a CAS number does not exist for a chemical constituent, another unique identifier has been

provided, if available.

Attached to this notice is a Water Management Plan that includes all of the information required by Public

Resources Code section 3160, subdivision (d)(1)(C).

(CONTINUED ON NEXT PAGE)OG109 (1/14) (CONTINUED FROM LAST PAGE)

Attached to this notice is a list of locations of existing wells, including plugged and abandoned wells, that may

be impacted by the fractures or modifications, as required by Public Resources Code section 3160, subdivision

(d)(1)(E).

Attached to this notice is a Groundwater Monitoring Plan that meets the requirements of California Code of

Regulations, title 14, section 1783.4.

The above

‐ named operator has contracted with an independent entity to provide neighboring property

owners and tenants with a copy of this notice and the attachments thereto, and with information about the

availability of water well testing, as required by Public Resources Code section 3160, subdivision (d)(6). The

well stimulation will not commence until 30 days after the required notice has been provided. If a notified

property owner makes a timely, written request for water well sampling and testing, then the operator will pay

for testing and sampling by one or more qualified independent third

‐ party contractors designated by the State

Water Resources Control Board, provided that the sampling and testing is consistent with the standards and

protocols specified by the State Water Resources Control Board pursuant to Public Resources Code section

3160(d)(7)(B) and is conducted in accordance with Public Resources Code section 3160, subdivision (d)(7)(A). If

a notified property owner makes a timely, written request for water well sampling and testing, then the well

stimulation will not commence until requested baseline water well testing is complete, as required by Public

Resources Code section 3160, subdivision (d)(7).

Within 60 days after the cessation of the well stimulation treatment, the above

‐ named operator will make all

public disclosures required by Public Resources Code section 3160, subdivisions (b) and (g), and pursuant to

California Code of Regulations, title 14, section 1788.

26 Name of Person Filing

Certification 27 Telephone

Number 28 Signature 29 Date

30 Address 31 City/ State 32 Zip Code

FOR DIVISION OF OIL, GAS, AND GEOTHRERMAL RESOURCES USE ONLY

Reviewed and approved as complete: Date: